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Главная страница Справка Коды ЭШД C58

Коды ЭШД

C55 C56 C57

C58

C59 C60 C61

C58

Код энциклопедии шахматных дебютов (ЭШД)

Описание

RU: Дебют двух коней: 4 Кg5 d5 5 exd5 Кa5
EN: Two Knights: 4 Ng5 d5 5 exd5 Na5 sidelines

Ходы

1. e4 e5 2. Кf3 Кc6 3. Сc4 Кf6 4. Кg5 d5 5. e:d5 Кa5

Дебюты

Дебют королевского коня , Защита двух коней

[Event "RUS-ch (Women) 63rd"]
[Site "Nizhnij Novgorod"]
[Date "2013.10.08"]
[Round "4"]
[White "Charochkina, Daria"]
[Black "Kovanova, Baira"]
[Result "0-1"]
[ECO "C58"]
[WhiteElo "2343"]
[BlackElo "2396"]
[Annotator "Abrahamyan,T"]
[PlyCount "84"]
[EventDate "2013.10.05"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "RUS"]
[EventCategory "8"]
[SourceTitle "CBM 156 Extra"]
[Source "ChessBase"]
[SourceDate "2013.10.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.10.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 {it's really nice to see all kinds of
openings being tried at these events. Also nice to know I'm not the only one
who likes this move} d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Bd3 Nd5 9. Nf3
Bd6 10. Nc3 {a really rare move. For the sacrifice pawn, Black gets a better
center, quicker developments and White's pieces are all on awkward squares.
White has quicklly castle and put pressure on the e5 pawn to stop Black's
center from advancing, otherwise White will never finish developing her pieces}
(10. O-O O-O (10... Nf4 11. Re1 Nxd3 12. cxd3 O-O 13. Nc3 Re8 14. b3) 11. Re1
Re8 12. Nc3 f5 13. Nxd5 cxd5 14. Bb5 Bd7 15. Bxd7 Qxd7 16. d3 {unlike what
happened in the game, here White gets in Bb5 with a tempo, enabling a piece
exchange and untangling with d3}) 10... O-O 11. O-O f5 12. Nxd5 cxd5 13. Be2 {
I really don't like how White handled the opening. It looks like Black got in
free moves, as White wasted too many moves moving her Bishop and the king side
attack looks crushing} e4 14. Nd4 f4 15. f3 Qb6 16. c3 Nc6 17. Qa4 {White is
barely hanging on} Bc5 18. fxe4 Nxd4 19. cxd4 Bxd4+ 20. Kh1 f3 $2 {although
winning an exchange, this moves allows White to hold on} (20... dxe4 {this
simple move looks winning. White simply can't finish developing. I am assuming
Black didn't want to allow the queen exchange} 21. Qb3+ Be6 22. Qxb6 axb6 $17 {
and it's not clear what White's next move is going to be}) 21. Rxf3 Bg4 22. d3
{this still looks tough for White, but at least now her King is safe and she
has two pawns for the exchange} Bxf3 23. Bxf3 Rae8 24. Qd1 dxe4 25. dxe4 Kh8
26. a4 Qf6 {I don't like this move as much. Black needs to keep pressure both
on the queen side and the king side and keep her pieces active to stop White
from developing} (26... Be5 {now the queen is not tied to protecting the d4
bishop and moves like Rb8 or Rd8 are a threat}) 27. Bg5 {The prospect of
finally developing that bishop is too tempting} Qe5 (27... Qxg5 28. Qxd4 Rc8
29. h3 a5 {also looks good for Black.}) 28. Bh4 Bxb2 29. Rb1 Rc8 30. Bf2 Rfd8 {
if Black can exchange the dark square bishops, winning should be quite easy.
White would really like to have her f3 bishop on d5} 31. Qe2 Bd4 32. Bh4 Re8
33. Rd1 Bb6 34. Bg3 Qg5 35. Qb2 Rc4 36. Qa3 $2 (36. Qb5 Qxb5 37. axb5 Rec8 38.
Bf4 Rb4 {and White can try pushing her e5 pawn and utilize the pair of bishops,
although it does not look too promising}) 36... Rec8 {proving that the White
king is still vulnerable} 37. Rf1 Rc1 38. Bd1 Qf6 39. Qd3 Rd8 40. Rxf6 Rxd1+
41. Qf1 gxf6 42. Be1 Bd4 {and Bc3 is unstoppable} 0-1

[Event "EU-Cup 27th"]
[Site "Rogaska Slatina"]
[Date "2011.09.29"]
[Round "5"]
[White "Bartel, Mateusz"]
[Black "Predojevic, Borki"]
[Result "1-0"]
[ECO "C58"]
[WhiteElo "2627"]
[BlackElo "2643"]
[Annotator "Bartel,M"]
[PlyCount "75"]
[EventDate "2011.09.25"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "SLO"]
[SourceTitle "CBM 145"]
[Source "ChessBase"]
[SourceDate "2011.11.11"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.11"]
[SourceQuality "1"]
[WhiteTeam "Novy Bor"]
[BlackTeam "Sarajevo Bosna"]
[WhiteTeamCountry "CZE"]
[BlackTeamCountry "BIH"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 {This move, which was popular years ago,
mainly due to Robert Fischer, is maybe not the best for White, but it
certainly leads to very complex and interesting positions. That's why many
players prefer 3...Bc5 - a calm Italian Game.} d5 5. exd5 Na5 6. Bb5+ Bd7 ({
Of course, the most popular - and probably best - choice is} 6... c6 {, but
the text has also been tried many times in the past. Still, I think it's a bit
suspicious for Black.}) 7. Qe2 Be7 ({Another option is} 7... Bd6 {, but the
bishop on e7 also makes sense - the queen will be in touch with the d5-square
sometimes and from e7 the bishop can attack the knight on g5 more seriously.})
8. Nc3 O-O 9. O-O Bg4 {My preparation wasn't very deep in that line - I wasn't
sure if my opponent would play 1...e5 and I also didn't expect that he would
choose the ...Bd7 line. So, that's why during the game I forgot what I had
checked earlier that day!} 10. Qxe5 $5 ({A very suspicious move - White's king
is still in the centre, so it's probably not the safest idea to open the
e-file for the black rook. However, during the game I couldn't find anything
which would kill me immediately, so I decided to accept the gift. During the
preparation my choice was} 10. f3 {which had been played in B. Socko-Naiditsch,
Novi Sad 2009. At the board I remembered that idea, but I thought that bishop
must be on d6 ...}) 10... a6 (10... Bd6 {is just mixing the move order after}
11. Qe3 a6 12. Be2) ({It was interesting to play} 10... c6 $5 11. dxc6 Bd6 12.
Qe3 bxc6 {and now White should play the not very obvious} (12... Re8 $2 13.
cxb7 $1) 13. Ba4 $5 {(which both players missed) with the idea:} Re8 14. Nge4
$1 Nxe4 15. Nxe4 f5 $2 16. Bb3+ {and White is winning.}) 11. Be2 (11. Bd3 $2 {
would be a serious mistake, because the d3-square is a place for the queen.
After} Bd6 12. Qe3 (12. Qd4 {doesn't work because of} c5 $1) 12... Re8 {
and White must put some piece or other on e4, what is certainly not a dream
position.}) 11... Bd6 12. Qe3 Re8 13. Qd3 Bxe2 14. Nxe2 {After several more or
less forced moves we got the crucial position of the game. My opponent
blundered, which left his game almost lost.} Re5 $2 ({Black should have played
} 14... Bxh2+ $1 15. Kxh2 Ng4+ 16. Kg1 Qxg5 17. Nc3 {, but both players
thought that this position is much better for White, since he is a pawn up and
the mating threats aren't especially dangerous. The truth is a bit different,
because with} Qf4 $1 {Black makes} 18. Qg3 {necessary and the endgame after}
Qxg3 19. fxg3 Nc4 20. b3 Nb6 {is very close to a draw and it has actually been
played in 1985 in the game C. Herbrechtsmeier - J. Nunn.}) 15. f4 Rxd5 16. Qf3
{Now White is much better. He still has periodical problems with development,
but it looks like the pawn is much more important. It is also interesting to
notice that the so-called active pieces, the rook on d5 and the knight on a5,
are slightly misplaced rather than dangerous.} Bc5+ ({At this moment, or one
move later, Black probably should have tried} 16... h6 {, although after} 17.
Ne4 Nxe4 18. Qxe4 Bc5+ 19. Kh1 Qd7 20. d3 Re8 21. Qf3 Nc6 22. Bd2 {White is
simply pawn up, though there are still some technical problems.}) 17. Kh1 Nc6
18. d3 Qd7 {This position is probably very bad, but this move, after which the
black rook will be in serious troubles, is surely hurrying the process.} 19.
Nc3 Nd4 20. Qd1 Rf5 21. Nce4 Bb6 22. c3 {Finally, White has made progress and
now things are getting much quicker.} Ne6 23. Nxf6+ Rxf6 24. Ne4 Rf5 25. Ng3 $1
{The white position is much better and there were also other good moves, but I
like the way I played the last part of the game - surprisingly White managed
to create a dangerous attack! It is also funny to notice that the white bishop
on c1 is better developed than the bishop on b6, which has already made 4
moves!} Rd5 26. f5 Nf8 ({Of course, you can't play} 26... Rxd3 27. fxe6 Rxd1
28. exd7 {, because the rook on f1 is protected.}) 27. d4 c5 28. Qg4 Kh8 29.
Bh6 $1 {Quite a simple move, but also quite pretty and what is the most
important - simply the best. It was also possible to begin with 29.Nh5.} f6 (
29... gxh6 30. Nh5 f6 {would lead to the same position.}) 30. Nh5 gxh6 31. Nxf6
Qf7 32. Nxd5 Qxd5 33. Rae1 {The black king is very weak, White has active
pieces and strong pawns - so the rest must be simple.} Qf7 ({During the game I
was a bit upset that my opponent didn't play} 33... Nd7 {, because the game
would finish brilliantly after} 34. f6 $1 Rg8 35. f7 $1 Rxg4 36. Re8+ Nf8 37.
Rxf8+ Kg7 38. Rg8# {with a very elagant mate!}) 34. f6 cxd4 ({After} 34... Bd8
{White had another nice trick:} 35. Re8 $1) 35. Re7 Qg6 36. Qf3 Bd8 37. Qxb7
dxc3 38. Qxa8 {and Black resigned.} 1-0

[Event "POL-ch"]
[Site "Poznan"]
[Date "2016.04.04"]
[Round "6"]
[White "Piorun, Kacper"]
[Black "Bartel, Mateusz"]
[Result "1/2-1/2"]
[ECO "C58"]
[WhiteElo "2655"]
[BlackElo "2625"]
[Annotator "Bartel,M"]
[PlyCount "94"]
[EventDate "2016.03.30"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "POL"]
[EventCategory "15"]
[SourceTitle "CBM 172"]
[Source "ChessBase"]
[SourceDate "2016.05.12"]
[SourceVersion "1"]
[SourceVersionDate "2016.05.12"]
[SourceQuality "1"]

{This game was played in the middle of thePolish championship. It was already
clear that both Kacper and I were fighting for medals and at the end he was
second while I was 3rd, so it's clear that this game was very important. My
opponent wa the biggest star of last month in Poland. The Polish Chess
Federation awarded him a prize of "Hetman" for the year 2015 for spectacular
achievments, which is not surprising, because he improved from 2530 to 2650 
(and now, as I am writing this words, his live rating is around 2680!). Piorun
(which in Polish means Thunder) is a very talented player and also former
World Champion in Solving. It's very difficult to play him, especially because
of the fact that he is fearless and always wants to win!} 1. e4 e5 2. Nf3 Nc6
3. Bc4 {When playing e5 these days, 3.Bc4 is move you should expect from
everybody.} Nf6 {A risky choice as it's an invitation to the crazy lines with
4.Ng5.} 4. Ng5 {And, of course, Kacper accept it!} d5 5. exd5 Na5 6. Bb5+ c6 7.
dxc6 bxc6 8. Bd3 {I must say that I was quite naive and went for this sharp
and complicated line without serious knowledge of the details.} Nd5 (8... Ng4 {
is the other option for Black.}) 9. h4 $5 {Well, it came as a shock! I knew
that such a move exists, but nothing more. Having it as a surprise over the
board is an unpleasant feeling.} Nf4 {The most human choice in my opinion.} ({
If I had a better memory or had studied the games of my brother more carefully,
I would have known that he has played this line with Black! Michal chose} 9...
Be7 {which is very straightforward and leads to insane complications:} 10. Qf3
f5 11. Bxf5 Rf8 12. g4 (12. Qh5+ g6 13. Bxg6+ hxg6 14. Qxg6+ Kd7 15. d3 {
also deserves attention and - to be honest - White should be better}) 12... g6
13. Nxh7 gxf5 14. Nxf8 e4 15. Qg2 Bxf8 {1/2 (36) Pijpers,A (2333)-Bartel,M 
(2296) Haarlem 2012, with a very, very complex play.}) 10. Bf1 Qd5 $2 ({
The whole concept of this move is wrong, as exchanging queens is not as good
as I thought. A better move was} 10... h6 $5 11. Nf3 (11. Ne4 Ne6 ({the
alternative is the sharp} 11... f5 12. g3 fxe4 13. gxf4 Bf5 14. fxe5 Bc5 15.
Qh5+ g6 16. Qe2 O-O $13) 12. d3 Be7 {and Black should have some initiative for
a pawn.}) 11... Bd6 12. d3 (12. g3 e4 13. gxf4 exf3 14. Qxf3 O-O {should be ok
for Black}) 12... Qe7 $5 13. g3 e4 14. dxe4 Qxe4+ 15. Be3 Nd5 {and Black is ok.
}) (10... Bc5 {may also be a nice move as after, let's say,} 11. Nc3 (11. c3 h6
12. Nf3 Qe7 $1 13. b4 Bg4 $1 $40) 11... O-O 12. d3 h6 13. Nge4 Bd4 {Black is
very active.}) 11. Qf3 $1 ({During the game I thought that} 11. Rg1 {was an
option and after that I planned to play} Bc5 12. d3 ({the trick is that} 12.
Nc3 $2 {loses to} Bxf2+ 13. Kxf2 Qd4+) 12... Qd8 $5 {(this one I didn't see)}
13. g3 Nd5 {and Black is fine.}) 11... h6 ({A worse try was} 11... f6 12. Nc3
Qxf3 13. Nxf3 {and it's a healthy pawn up for White.}) 12. Qxd5 ({After} 12.
Nc3 Qd7 $1 13. Nh3 (13. Nge4 f5 14. Ng3 Bd6 {and Black is about to get an
advantage}) 13... Ne6 {The game looks nice for Black. In such positions it's
important to place your knight on d4 and Black is ready to move there.}) 12...
cxd5 ({It was probably pointless to play} 12... Nxd5 {since there are no
visible pluses after this, while the bad pawn structure remains on the board.})
13. Nf3 $14 e4 14. d3 Ne6 $2 ({This is serious mistake, which leads to a very
forced line. I should have played} 14... Nxd3+ 15. Bxd3 (15. cxd3 exf3 {
may lead to a better position for Black.}) 15... exd3 16. cxd3 {I had the
feeling that this position is just worse and didn't want to play it. However,
it is probably just holdable, but not without problems. White is a pawn up,
but at the same time my light-squared bishop offers long term counter-chances.}
) ({After the game I thought that maybe} 14... Ng6 {was better, but after} 15.
dxe4 dxe4 16. Nd4 Bc5 17. Be3 O-O {White is just a pawn up.}) 15. dxe4 dxe4 16.
Bb5+ $1 Ke7 (16... Bd7 17. Bxd7+ Kxd7 18. Ne5+ Ke7 19. Bd2 Nd4 20. Bxa5 Nxc2+
21. Ke2 Nxa1 22. Na3 Ke6 23. Nec4 {was just lost}) 17. Ne5 Nd4 18. Ba4 {
It was important to give check on b5, to have this defensive move.} Kf6 19. c3
Ne6 ({The only move. Going for this position I thought that} 19... Kxe5 20.
cxd4+ Kxd4 {was fine for me, but this is an endgame in which the activity of
the king is not very useful, as the king can be mated. The position is almost
lost after} 21. Bd2 (21. Bf4 $5) 21... Nc4 22. Bc3+ Kc5 23. O-O $18) 20. Ng4+
Kg6 21. h5+ $16 Kh7 {So, the king has gone from e8 to h7 - this is a rather
unusual way of castling! Unfortunately, it doesn't give Black much, as both
bishop and rook are not easily brought into the game, while Black is... a pawn
down!} 22. Bc2 {There was no urgent need to place the bishop on c2, but it's
more than just tempting - white attacks the e4-pawn and also prepares action
against the king (and possibly the rook on a8 too).} f5 23. Ne5 Nb7 $1 {
Even if computer isn't impressed by this move, I am proud of it. The knight
can do nothing on a5, while now I can think about Nb7-c5 and later Bc8-a6,
which looks like a reasonable plan as d3 is the weakest point in White's
position.} 24. Ng6 $6 ({I don't like this move, as the knight on e5 is a
strong piece, while on g6 it's not that good. It was much better to develop
other pieces, for example} 24. Nd2 Nbc5 25. Ndc4 {and it's close to being
winning. The only problem for a human in such a position is that all ways look
good enough and it's hard to decide which is best.}) 24... Rg8 25. Be3 Nbc5 26.
Nd2 Ba6 {Here, I must say, I was happy with my position. The engines laugh, of
course, but at least I coud see a target and it was the d3-square.} 27. O-O-O
$2 ({White would be practically winning after the strong} 27. g4 $1 Nd3+ 28.
Bxd3 Bxd3 29. gxf5 {. However, without an engine, I would say it's a
complicated position. Seeing +2 makes me a bit surprised... Probably Kacper
also thought that this is not that promising as even in analysis we didn't
look at the g2-g4 move!}) 27... Be2 28. Rde1 ({Again, a very strong move was} 
28. g4 Bxd1 29. Kxd1 $5 {and Black's position collapses.}) 28... Nd3+ 29. Bxd3
Bxd3 30. Nxf8+ $2 ({It was the very last moment to play g2-g4. After} 30. g4
fxg4 31. Rh4 {White was much better, but with a bishop on d3 it would be still
not that simple to convert.}) 30... Rgxf8 31. f4 {A very solid move which
makes a draw the most probable result. It was a difficult decision for Kacper,
as he understood that his position should have been winning somewhere.
Sometimes you can't accept the facts and you keep on playing for a win, when
objectively you should be looking for a draw. This time, my opponent decided
that it was better to accept what was happening and block the kingside.} ({
The alternative was} 31. g3 {,but after} a5 {it not simple to show how White
can play, while Black will try to press on queenside.}) 31... Rac8 (31... a5 {
was also possible, but I wanted to stop Nb3-d4.}) 32. Nb3 Rfd8 33. g3 Rd5 34.
Rh2 a5 35. Na1 $1 {Not very complicated, but nonetheless, a very nice move.}
Kg8 36. Nc2 Rb5 37. Rf2 Kf7 {The last 3 moves show that Black has no plan and
is just waiting.} 38. Na3 ({Probably, White can't do much as after} 38. Rd1 Ke7
39. Rfd2 Rc7 {White can't improve, because} 40. Ne1 $4 {loses to} ({a more
promising line may be} 40. Rxd3 exd3 41. Rxd3 {and this is what I was afraid
of. Black can't win this, while White can try to make use of the powerful
pawns on the queenside. Still, it should be close to a draw after} Rd7 42.
Rxd7+ Kxd7 43. b3 Rb8 {with g7-g6 to come.}) 40... Rxc3+) 38... Rb7 39. Nc2 Nc7
{An invitation to Nd4-f5 and... a draw. With a rook on b7, the knight cannot
come to d4 with tempo - that's why it's possible now to play Nc7, and why it
didn't work earlier.} 40. Nd4 Nd5 $1 {A simple move which forces the draw.} 41.
Nxf5 Rxc3+ 42. bxc3 Rb1+ 43. Kd2 Rb2+ 44. Kd1 Nxe3+ 45. Rxe3 Rb1+ 46. Kd2 Rb2+
47. Ke1 Rb1+ 1/2-1/2

[Event "Khanty-Mansiysk FIDE GP (Women)"]
[Site "Khanty-Mansiysk"]
[Date "2014.04.10"]
[Round "2"]
[White "Kosteniuk, Alexandra"]
[Black "Kosintseva, Tatiana"]
[Result "0-1"]
[ECO "C58"]
[WhiteElo "2527"]
[BlackElo "2496"]
[Annotator "ChessBase Website"]
[PlyCount "70"]
[EventDate "2014.04.09"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "RUS"]
[EventCategory "10"]
[SourceTitle "CBM 160"]
[Source "ChessBase"]
[SourceDate "2014.05.15"]
[SourceVersion "1"]
[SourceVersionDate "2014.05.15"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]
[WhiteClock "1:30:00"]
[BlackClock "1:30:00"]

1. e4 {[%emt 0:00:00]} e5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:00]} Nc6 {
[%emt 0:00:00]} 3. Bc4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 4. Ng5 {[%emt 0:
00:03]} d5 {[%emt 0:00:00]} 5. exd5 {[%emt 0:00:05]} Na5 {[%emt 0:00:00]} 6.
Bb5+ {[%emt 0:00:09]} c6 {[%emt 0:00:02]} 7. dxc6 {[%emt 0:00:13]} bxc6 {
[%emt 0:00:05]} 8. Bd3 {[%emt 0:00:12]} Nd5 {[%emt 0:05:30]} 9. h4 {[%emt 0:00:
43]} (9. Nf3 Nf4 10. O-O Bd6 11. Nc3 Nxd3 12. cxd3 c5 13. Ne4 O-O 14. b3 Ba6
15. Re1 Nc6 16. Ba3 Bxd3 17. Nxd6 Qxd6 18. Rc1 Rfe8 19. Bxc5 Qd7 20. h3 Rad8
21. b4 Re6 22. a4 a6 23. Re3 h6 24. Ne1 Bg6 25. b5 axb5 26. axb5 Na5 27. Nf3
Qd5 28. d4 e4 29. Nd2 f5 30. Ra3 Nb7 31. Qb3 f4 32. Ra8 Qd7 33. Rxd8+ Nxd8 34.
Nc4 Bf7 35. b6 f3 36. g4 h5 37. b7 Nxb7 38. Nb6 Qd8 {Zhigalko,S (2661)
-Karjakin,S (2782) Kiev 2013 0-1 (64)}) 9... Nf4 {[%emt 0:12:21]} 10. Bf1 {
[%emt 0:09:32]} h6 {[%emt 0:12:27]} 11. Ne4 {[%emt 0:16:25]} Ne6 {[%emt 0:03:
28]} 12. Ng3 $146 {[%emt 0:10:54]} (12. a3 Be7 13. b4 Nb7 14. Bb2 O-O 15. Bc4
f5 16. Bxe5 Kh7 17. Ng3 Bf6 18. Bxf6 Qxf6 19. Nc3 Nd4 20. Nge2 a5 21. Bd3 c5
22. Nxd4 cxd4 23. Ne2 Nd6 24. c4 Bb7 25. f3 Nf7 26. b5 Ne5 27. Qc2 Rae8 28. O-O
Qxh4 29. c5 Nxf3+ 30. Rxf3 Bxf3 31. gxf3 Rxe2 32. Bxe2 Qg3+ 33. Kf1 Qh3+ 34.
Kg1 Qg3+ 35. Kf1 Qh3+ 36. Kg1 Qg3+ {1/2-1/2 (36) Ten Hertog,H (2356)-Ernst,S 
(2606) Amsterdam 2012}) 12... Bc5 {[%emt 0:18:29]} 13. c3 {[%emt 0:04:25]} Nb7
{[%emt 0:02:39]} 14. b4 {[%emt 0:04:22]} Bb6 {[%emt 0:00:33]} 15. Na3 {[%emt 0:
07:20]} a5 {[%emt 0:13:37]} 16. Nc4 {[%emt 0:13:56] The Two Knights Opening
rears its ugly head every so often in grandmaster chess. It always leads to
interesting positions, and this case was no exception. Kosteniuk was as little
too eager to keep her extra material; Kosintseva launched a ferocious attack
and White was simply defenseless against the incoming threats. Her precise
play culminated in a picturesque mating threat that would have cost White too
much material to parry.} Bc7 {[%emt 0:01:28]} 17. bxa5 {[%emt 0:09:55]} Nxa5 {
[%emt 0:00:49]} 18. Ne3 {[%emt 0:01:40]} O-O {[%emt 0:04:09]} 19. Ba3 {[%emt 0:
04:44]} c5 {[%emt 0:03:07]} 20. Bb5 {[%emt 0:01:27]} Nb7 {[%emt 0:03:59]} 21.
Bb2 {[%emt 0:01:08]} Nd6 {[%emt 0:02:05]} 22. Be2 {[%emt 0:03:23]} f5 {[%emt 0:
02:38]} 23. Nc4 {[%emt 0:02:21]} f4 {[%emt 0:04:27]} 24. Nxd6 {[%emt 0:00:04]}
fxg3 {[%emt 0:00:10]} 25. Nxc8 {[%emt 0:00:13]} gxf2+ {[%emt 0:03:04]} 26. Kf1
{[%emt 0:00:01]} Qxc8 {[%emt 0:05:28]} 27. Bc4 {[%emt 0:00:29]} Kh8 {[%emt 0:
00:24]} 28. Qg4 {[%emt 0:01:21]} Qb7 {[%emt 0:00:31]} 29. Bc1 {[%emt 0:06:06]}
Nf4 {[%emt 0:00:35]} 30. d3 {[%emt 0:01:17]} e4 {[%emt 0:00:45]} 31. Be3 {
[%emt 0:02:05]} Qb2 {[%emt 0:00:45]} 32. Rd1 {[%emt 0:00:09]} h5 {[%emt 0:00:
49]} 33. Bc1 {[%emt 0:01:04]} Qxc1 {[%emt 0:00:46]} 34. Rxc1 {[%emt 0:00:03]}
hxg4 {[%emt 0:00:03]} 35. dxe4 {[%emt 0:00:06]} Nh5 {[%emt 0:00:33]} 0-1

[Event "Match Eliskases-Bogoljubow +6-3=11"]
[Site "Germany"]
[Date "1939.01.23"]
[Round "10"]
[White "Bogoljubow, Efim"]
[Black "Eliskases, Erich Gottlieb"]
[Result "1/2-1/2"]
[ECO "C58"]
[Annotator "Eliskases,E"]
[PlyCount "102"]
[EventDate "1939.01.04"]
[EventType "match"]
[EventRounds "20"]
[EventCountry "GER"]
[SourceTitle "HCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 {1)DSB 1939, S.53 Bericht, S.55-56. Partiekommentar [Eliskases].
"Ursprünglich hätten zwei Spiele in Garmisch-Partenkirchen ausgetragen
werden sollen. Infolge einer bedeutenden Wintersportveranstaltung waren aber
keine Hotelzimmer und kein Spielsaal mehr zu haben." Spielort für die 10.-12.
Partie: München} e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. d3 h6 7.
Nf3 e4 8. Qe2 Nxc4 9. dxc4 Bc5 10. Nfd2 O-O 11. Nb3 Bg4 12. Qf1 Bb4+ 13. c3 Be7
14. h3 Bf5 15. Be3 Nd7 16. g4 Bg6 17. N1d2 Ne5 18. O-O-O Nd3+ 19. Kb1 Bg5 20.
Nd4 Qf6 21. h4 Qb6 22. N2b3 Bxe3 23. fxe3 a5 24. c5 Nxc5 25. Nxc5 Qxc5 26. Qb5
Qxb5 27. Nxb5 Rac8 28. Rhf1 h5 29. g5 f6 30. Rg1 Bf5 31. Rd4 Bg4 32. gxf6 Rxf6
33. Kc1 Be2 34. c4 Bd3 35. d6 c5 36. Rd5 Bxc4 37. Rdg5 Bxb5 38. Rxg7+ Kh8 39.
d7 Bxd7 40. Rxd7 Rg8 41. Rxg8+ Kxg8 42. Rxb7 Rf1+ 43. Kd2 Rf2+ 44. Kc3 Re2 45.
Rb5 Rxe3+ 46. Kd2 Rd3+ 47. Ke2 Rh3 48. Rxc5 Rxh4 49. Rxa5 Rh2+ 50. Ke3 Rxb2 51.
Rxh5 Rxa2 1/2-1/2

[Event "Nuremberg LGA Cup 6th"]
[Site "Nuremberg"]
[Date "2009.09.06"]
[Round "6"]
[White "Luther, Thomas"]
[Black "Hector, Jonny"]
[Result "1-0"]
[ECO "C58"]
[WhiteElo "2559"]
[BlackElo "2568"]
[Annotator "Gutman,L"]
[PlyCount "119"]
[EventDate "2009.09.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ Bd7 7. Qe2 Be7 8.
Nc3 O-O 9. Bd3 ({Luther vermeidet} 9. O-O Bxb5 (9... Bg4 10. f3 Bh5 11. Qxe5
Bg6 12. Nge4 a6 13. Bd3 Re8 14. Kh1 {brachte WeiЯ Erfolg in Short-Hector,
Lanzarote 2003}) 10. Qxb5 c6 11. dxc6 Nxc6 $44 {mit Ersatz fьr das geopferte
Material, Naiditsch-Graf, Deutsche Meisterschaft Koenigshofen 2007}) 9... g6 $5
({In Betracht kam} 9... c6 10. d6 Bxd6 11. Nxh7 Nxh7 12. Bxh7+ Kxh7 13. Qd3+ f5
14. Qxd6 Rf6 $44 {Tischbierek in Schach, wдhrend}) (9... Bg4 10. f3 Bh5 11. h4
c6 12. g4 Bg6 13. Bxg6 hxg6 14. d6 Bxd6 15. d3 c5 16. Be3 Nc6 17. O-O-O $14 {
WeiЯ zugute kommt, Sergeev-Sodoma, Rakovnik 2008}) 10. O-O Nh5 $6 ({Besser
gefдllt} 10... c6 11. dxc6 Nxc6 12. Nf3 Re8 $44 {mit Ersatz fьr den Bauern})
11. Nf3 f6 ({Schwarz zurecht vermeidet} 11... Nf4 12. Qxe5 Nxd3 13. cxd3 Bd6
14. Qd4 c5 {wegen} 15. Qh4 (15. dxc6 Bxc6 $44 {Tischbierek}) 15... Qxh4 16.
Nxh4 $16) 12. Qe3 ({Nach} 12. g3 Bg4 13. Re1 {hдtte} c6 14. dxc6 Nxc6 15. Be4
Nd4 16. Qc4+ Be6 17. Qd3 Nc6 18. Bd5 Ng7 19. Qc4 Bf7 20. d3 Rc8 $44 {folgen
kцnnen}) 12... Nf4 13. Re1 c5 ({Nach} 13... Be8 14. Bf1 Nxd5 15. Nxd5 Qxd5 16.
d4 $16 {stьnde WeiЯ ьberlegen, Tischbierek, doch vorzuziehen war}) (13... c6 $5
) 14. dxc6 ({Etwas bessere Chancen versprach} 14. b3 $5 Be8 15. Bc4 Bf7 16. Qe4
Bd6 17. d3 Re8 18. g3 $14) 14... Nxd3 $2 ({Gьnstiger fьr WeiЯ wдre} 14... Bxc6
15. Bf1 Ne6 16. d3 Re8 17. Bd2 $14 {gewesen, doch richtig war}) (14... Nxc6 $5
15. Bc4+ Kh8 16. d4 Nxg2 17. Kxg2 exd4 18. Nxd4 Bc5 19. Ne6 Bxe3 20. Nxd8 Bxc1
$11 {mit Ausgleich, Tischbierek}) 15. c7 $2 ({Mehr Probleme hдtte Schwarz nach
} 15. cxb7 $1 {, wie} Nb4 ({oder} 15... Nxe1 16. bxa8=Q Qxa8 17. Qxe1 Bc6 18.
Qe2 Bxf3 19. Qxf3 Qxf3 20. gxf3 Nc6 21. Nd5 Rd8 22. c4 $16) 16. bxa8=Q Qxa8 17.
d4 Nxc2 18. Qe2 Nxa1 19. Bh6 $16 {zeigt}) 15... Qxc7 16. Qxd3 Nc6 $6 ({
Angebracht war} 16... Bc6 17. Nd5 Bxd5 18. Qxd5+ Rf7 19. c3 Rd8 20. Qb5 Nc6 21.
d4 $5 exd4 22. Nxd4 Nxd4 23. cxd4 Rxd4 24. Be3 $14 {mit weiЯem Druckspiel}) 17.
Qc4+ Rf7 18. Nd5 $6 ({Klaren Vorteil versprach} 18. d4 Qa5 19. dxe5 Nxe5 20.
Nxe5 fxe5 21. Bf4 Rc8 22. Qb3 Bf6 23. Bg3 $16) 18... Qd6 19. Nxe7+ Qxe7 20. d4
$2 ({Bei} 20. c3 Be6 21. Qe2 Qd6 22. d4 Bg4 23. dxe5 Nxe5 24. Bf4 Bxf3 25. Bxe5
fxe5 26. gxf3 Raf8 27. Qxe5 Qb6 28. Re2 Rxf3 29. Rf1 $14 {stьnde WeiЯ immer
noch etwas besser.}) 20... Qb4 21. Qxb4 Nxb4 22. Re2 Bf5 23. Bh6 Nxc2 24. Rd1
Rd7 25. Red2 e4 26. Nh4 Nb4 27. f3 Nxa2 $2 ({Viel stдrker war} 27... e3 28.
Bxe3 Be6 $15 {,Tischbierek, oder}) (27... Re8 28. a3 Nd5 29. Re2 Rde7 $15 {
mit besserem Spiel fьr Schwarz}) 28. g4 Be6 29. d5 Bf7 $6 ({Zum Ausgleich
reichte} 29... e3 30. Bxe3 Bf7 31. Ng2 Nb4 $11) 30. fxe4 Nb4 31. Rd4 a5 32. Nf3
({Nach} 32. Rf1 Nc6 33. Rdd1 Ne5 34. h3 g5 35. Nf3 Ng6 36. Nd2 Rd6 37. Rc1 Nf4
38. Rc7 Nxh3+ 39. Kh2 Nf4 40. Rxb7 Rc8 $11 {steht Schwarz nicht schlechter})
32... Rc8 (32... g5 33. h4 Nc2 34. R4d3 gxh4 35. Nxh4 Re8 36. Rc3 Nb4 37. Re3
Bg6 38. Rc1 $14 {kommt WeiЯ zugute}) 33. R4d2 $2 ({Stдrker war} 33. Bd2 Nc2 34.
Rc1 Rdc7 35. Rd3 $16 {mit Schwarz in Bedrдngnis}) 33... Rc4 $2 ({Wдhrend nun} 
33... Re8 34. Rd4 g5 35. h4 Nc2 36. Ra4 Ne3 37. Rdd4 Nxg4 38. hxg5 b6 39. b4 f5
40. bxa5 fxe4 $15 {das Bild erneut zu schwarzen Gunsten hдtte дndern kцnnen})
34. Rd4 ({Einfacher war} 34. Re2 g5 35. h4 $14 {mit etwas Vorteil}) 34... Rc2 (
{Vorzuziehen war} 34... Rxd4 35. Nxd4 $14) 35. R1d2 $2 ({Klaren Vorteil
sicherte} 35. Ra1 Rxb2 36. Rxa5 Na6 37. g5 $16) 35... Rc1+ 36. Kf2 g5 ({
Schwarz sollte sich mit} 36... Rd8 37. Re2 Rb1 38. Bf4 $14 {zufrieden geben})
37. h4 gxh4 38. Nxh4 Bg6 39. g5 Rh1 40. Kg3 Rg1+ ({Kaum gьnstiger wдre} 40...
fxg5 41. Bxg5 Rg1+ 42. Ng2 b5 43. Kh2 Rb1 44. Ne3 $16 {gewesen}) 41. Ng2 Re7
42. Re2 $1 Rh1 43. Rf2 Kf7 ({Keine Rettung versprach} 43... Rxe4 44. Rxe4 Bxe4
45. Rxf6 Rxh6 46. Rxh6 Nxd5 47. Rh4 $18 {,Tischbierek}) 44. d6 ({Auch} 44.
Rxf6+ Ke8 45. d6 Rf7 46. e5 Bf5 47. Rxf7 Kxf7 48. d7 Nc6 49. d8=Q Nxd8 50. Rxd8
$18 {hдtte gewonnen}) 44... Re6 (44... Nc6 45. d7 $18) 45. d7 Nc6 46. d8=Q Nxd8
47. Rxd8 Rxe4 48. Rxf6+ Ke7 49. Rfd6 Rf1 50. Bg7 Bh5 51. Bf6+ Kf7 52. R6d7+ Kg6
53. Nh4+ Rxh4 54. Kxh4 Bf3 55. Kg3 Bc6 56. Rd2 Rf3+ 57. Kh2 Kh5 58. R8d3 Rf1
59. Kg3 a4 60. Rf2 1-0

[Event "World Cup"]
[Site "Khanty-Mansiysk"]
[Date "2007.11.27"]
[Round "2.1"]
[White "Vallejo Pons, Francisco"]
[Black "Inarkiev, Ernesto"]
[Result "0-1"]
[ECO "C58"]
[WhiteElo "2660"]
[BlackElo "2674"]
[Annotator "Inarkiev,E"]
[PlyCount "80"]
[EventDate "2007.11.24"]
[EventType "k.o."]
[EventRounds "7"]
[EventCountry "RUS"]
[SourceTitle "CBM 122"]
[Source "ChessBase"]
[SourceDate "2008.01.30"]
[SourceVersion "1"]
[SourceVersionDate "2008.01.30"]
[SourceQuality "1"]

{This is that kind of games, that leaves you with strange feelings. Both of us
spend a lot of time in the first part of the game, but when I came to my room,
after the game, and started to look at it, I didn't write too much variations.
Obviously, I had a question: "What was I thinking about?". The problem of this
game, that all variations what you have to calculate, have no concrete
assesement, most often it's "compensation", "initiative", "no compensation"...
And you have to choose between positions with different "compensations" and
"initiatives". Even now, I still don't sure, what is right, and what is wrong.
} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 {Vallejo played this variation few
times before, so I knew that this is possible, but didn't consider it as the
main problem.} d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Qf3 ({Another line is
} 8. Be2) 8... Rb8 {After this move my opponent fell into deep thought. It was
quite strange, because this is the main line.} 9. Bd3 ({The idea of 8...Rb8
shows the variation} 9. Bxc6+ Nxc6 10. Qxc6+ Nd7 $1 11. d3 Be7 12. Ne4 Rb6 $5
13. Qa4 O-O $44 {1/2-1/2, Belotti Bruno 2433 - Dervishi Erald 2530 , Arco 2002
It (open). Leads in development gives Black full compensation for the pawns.})
9... Be7 $5 ({More popular} 9... h6 10. Ne4 Nd5) 10. Nc3 O-O 11. a3 $5 $146 {
Interesting preventive move.} ({Black achieved good counterplay after} 11. O-O
Rb4 $1 {1/2-1/2, Kurnosov Igor 2579 - Kiselev Gennady 2434 , Krasnoyarsk 3. 9.
2007 Ch Russia (Higher League)}) 11... c5 {b2-b4 was a strong threat.} ({
Too early is} 11... h6 $6 12. Nge4 Nd5 {(/\f5)} 13. b4 $1 f5 14. bxa5 fxe4 15.
Qxe4 Bf5 16. Qc4 Bxd3 17. Qxd3 $14) 12. b3 $5 {Preventing c5-c4.} ({After} 12.
O-O c4 $1 13. Be2 {Black has full compensation, for example} Ne8 $5 ({Also
interesting} 13... Ng4 $5) 14. Nh3 Nd6 15. d3 Nf5 $1 16. dxc4 Nd4 17. Qe4 Bf5
18. Qxe5 Bxh3 19. gxh3 Nxc4 20. Qe4 Nxb2 $13) ({Obviously, White would like to
simplify the position. From this point interesting is to change the knight f6.
Of course, just bad} 12. Nce4 $2 Nxe4 13. Nxe4 f5 $19) ({But} 12. Nge4 $5 {
is quite interesting} Rb6 $5 ({Doesn't work} 12... Nd7 $6 {(/\f5)} 13. Ng3 $1
c4 14. Be4 Nf6 15. O-O g6 16. d3 $16) 13. b4 $1 ({Too slow} 13. O-O $6 c4 $1
14. Be2 Nxe4 15. Qxe4 ({or} 15. Nxe4 Bb7 $36) 15... Bb7 $1 16. Qxe5 Rh6 {
(/\Bd6)} 17. Qf5 Nc6 $1 18. Qe4 ({or} 18. Qd5 Bd6 $17) 18... Rh4 19. Qf3 Qd7
$17) 13... cxb4 14. axb4 Nc6 15. Nxf6+ Bxf6 16. Be4 Nxb4 17. Rxa7 Ra6 $1 ({
Worse is} 17... Ba6 $6 18. Qh3 $1 g6 19. Qd7 $16) ({or} 17... Bh4 $6 18. O-O f5
19. Bd5+ Nxd5 20. Nxd5 $16) 18. Rxa6 Bxa6 $44 {for example} 19. Ba3 Bg5 $1 20.
Nb1 Be7 21. c3 Nd3+ 22. Bxd3 Bxd3 23. Bxe7 e4 $1 24. Qxe4 $1 Qd7 25. Qb4 Re8)
12... Rb6 $5 {Now this rook is thinking about the kingside.} ({Again, it's not
time for} 12... h6 $6 13. Nge4) ({But interesting is} 12... Bb7 $5 13. Nge4 {
(/\g4)} c4 $1 14. bxc4 Qd4 15. O-O Nxc4 16. Nxf6+ Bxf6 17. Ne4 Be7 18. c3 Qd5
$44) 13. O-O ({During the game, I thought that} 13. Nge4 $6 Ne8 14. g4 {
is possible, but after} f5 $1 15. gxf5 Bxf5 16. Rg1 Nc7 {the position is
unpleasant for White. The white king always will be in danger.}) 13... Bb7 $6 {
The bishop was active enough on c8.} ({Black should improve another piece:} 
13... Nc6 $1 {For example} 14. Qd1 ({or} 14. Qg3 Nd4) 14... Nd4 15. Bc4 Nd7 16.
Nf3 Bb7 $44) 14. Qh3 $1 ({Bad is} 14. Nge4 $6 Nd7 $1 {(/\f5).}) ({Also not
good is} 14. Qe2 $6 h6 $1 15. Nge4 ({Of course not} 15. Nf3 $2 e4 $1 16. Bxe4
Nxe4 17. Nxe4 Re6 18. d3 f5 $17) 15... Nd5 $1 16. Nxd5 Qxd5 $15) 14... h6 15.
Nge4 Nh7 {Avoiding the changes, and prepearing f5. This was my idea when I was
playing 13...Bb7.} ({Simplifications should be in White's favour} 15... Nxe4
16. Bxe4 Bxe4 17. Nxe4 Qd4 18. Nc3 f5 19. Rb1 Rg6 {Black has activity, but no
objects for attack. White should gradualy improve the position.}) ({
Interesting is} 15... Ne8 $5 {with similar ideas as in the game.}) 16. b4 $6 ({
Void is} 16. Na4 $6 Rg6) ({When I was playing 13...Bb7, I thought, that the
main is} 16. Qf5 $5 {Attacking e5, and, at some point h7.} Rg6 $1 ({Weak is} 
16... Qd4 $6 17. Bb2 $1 {and on} g6 {simply} 18. Qh3 $16 {now Black can't play}
f5 $2 {because of} 19. Na4 $1 $18) {Now White should take a pawn} 17. Qxe5 ({If
} 17. Re1 $6 {then} Nc6 18. Bc4 Kh8 $1 19. Qh5 ({or} 19. Bxf7 Rg5 20. Nxg5 Nxg5
$15) 19... Nd4 20. Bxf7 Rb6 $15 {with clear advantage.}) 17... Nxb3 $1 {
The most simple.} 18. Rb1 ({Worse is} 18. cxb3 $2 Qxd3 $17 19. Qxe7 $2 Qf3 $1
20. g3 Ng5 $19) 18... Ng5 $1 19. f3 Re6 20. Qf4 Bxe4 21. Nxe4 Nxe4 22. Bxe4 Bg5
23. Qg4 Nxc1 24. Rfxc1 Bxd2 25. Rd1 Rd6 $11) ({But White has much more
stronger continuation} 16. Qe3 $1 {Attacking c5.} Ng5 ({Or} 16... Qd4 17. Ng3
g6 18. Re1 $16) ({Worse is} 16... Qc8 17. Ng3 $1 Ng5 18. Nf5 Bf6 19. b4 $16)
17. f3 $1 ({Pawn c5 is untouchable} 17. Nxc5 $2 Bxc5 18. Qxc5 Nxb3 $1 19. cxb3
Nh3+ $19) 17... Ne6 18. b4 $1 cxb4 19. axb4 Bxb4 20. Ba3 $36) 16... cxb4 17.
axb4 Bxb4 {Here, we both had about 20 min till the control.} 18. Ba3 {White
opened queenside. This is quite annoying, cause, all Black pieces were
prepearing to play on the other side.} ({Here} 18. Qf5 $6 {is useless, because
of} Qe7) 18... f5 {This is necessary to justify previous play.} (18... Bxe4 $6
19. Nxe4 Bxa3 ({or} 19... f5 20. Nc5 $14) 20. Rxa3 $14) 19. Bxb4 ({Alternative
is} 19. Nc5 {gives Black dangerous opportunitys} Ng5 $1 20. Qe3 Nf3+ $1 21. Kh1
({Of course not} 21. gxf3 $2 Rg6+ 22. Kh1 Qg5 $1 $19 {and White can't defend
both g2, and f3.} 23. Rg1 ({or} 23. Qxg5 Bxf3+) 23... Qxe3 24. fxe3 Bxf3+)
21... Bxc5 $1 22. Bxc5 ({Worse is} 22. Qxc5 $2 Rf7 $1 $40) {but, probably,
Black should just force a draw.} 22... Rg6 ({Alluring, but insufficient} 22...
f4 $6 23. Qe2 $1 ({Weaker is} 23. Bxb6 $6 axb6 $1 24. Qe2 Nxh2 $1 25. Kxh2 $1 (
{If} 25. f3 {then just} Nxf1 $17) 25... f3 26. Qxe5 Qh4+ 27. Kg1 fxg2 {It's a
wonder, that White doesn't lose here} 28. Qh2 gxf1=Q+ 29. Rxf1 Qg5+ 30. Qg3
Qxd2 31. Qg6 $1 {With strong counterplay, but Black still has upper hand.})
23... Nxh2 24. Qh5 $1 Nxf1 25. Bxf8 $1 Nxd2 26. Qxe5 Qxf8 27. Rxa5 $16 {
Despite the extra pawn, Black is worse here. Bad knight on d2, and activity of
all White pieces, give White permanent initiative.}) 23. Bxf8 Rxg2 $1 24. Kxg2
Ne1+ {There's no way to avoid repetition} 25. Kg1 (25. Kh3 $2 Bg2+ $1 $19)
25... Nf3+ 26. Kg2 Ne1+ $11) 19... Rxb4 20. Nc5 Ng5 {I was charmed by the idea
of keeping the bishop on the long diagonal} ({but} 20... Bc8 {(/\Nc6). is also
interestsing.}) 21. Qe3 Ba8 22. f4 ({Obviously, White can't take on e5} 22.
Qxe5 $2 Rg4 $19) ({Interesting strategically looks} 22. f3 $5 {White bounds
the bishop, and shows, that doesn't believe in Black's play on the kingside,
and going to increase pressure on the queenside.} {For example} Nc6 $5 23. Na6
Rh4 24. Nb5 Rf7 25. Rfe1 Kh8 $13) 22... exf4 23. Rxf4 Re8 $6 {Here we both had
about 10 min. The idea of 23...Re8 is to prepeare the combination.} ({
Immediately} 23... Nh3+ $2 {just bad} 24. gxh3 Qg5+ 25. Qg3 Rxf4 26. Rxa5 $18)
({Right way is} 23... Rxf4 $1 24. Qxf4 Ne4 $1 $13 {For example} 25. Bxe4 ({Or} 
25. Ne6 Qb6+ 26. Qe3 Qxe6 27. Nxe4 ({Worse is} 27. Rxa5 $2 f4 $1 28. Qd4 Nxc3
$1 29. Qxc3 Qe1+ 30. Bf1 f3 $19) 27... Qd5 $1 28. Qxa7 Nb3 $1 29. Ra4 fxe4 30.
Bc4 Qxc4 31. Rxc4 Nxd2 32. Rc8 $1 Rxc8 33. Qd7 Rxc2 34. Qd8+ Kh7 35. Qxa8 e3
36. Qa1 Rc4 37. Qe1 Re4 $15) 25... fxe4 26. Ne6 Qb6+ 27. Qe3 Qxe6 28. Rxa5 {
At first view position looks better for White, but Black can combine threats
on the kingside and the advance of "a" pawn.} Qf6 29. Ra1 a5 $13) 24. Rxb4 $6 {
On this move, opponent spent half of his time.} ({No better, then the text
move is} 24. Qxe8+ $6 Qxe8 25. Rxb4 {after} Nc6 $1 26. Rba4 Ne5 {Black has
dangerous threats.}) ({The point of 23...Re8 shows the variation} 24. Qf2 $5
Nh3+ $1 25. gxh3 Qg5+ 26. Qg3 Rxf4 {Now White can't take on a5} 27. Qxg5 (27.
Rxa5 $2 Re1+ $1 {this is the point.}) 27... hxg5 28. Ne2 $1 {Covering the line
"e".} Rf3 $1 {This is that what I calculated before 23...Re8, but, as usual
this is not the end.} (28... Rxe2 $2 29. Bxe2 Nc6 30. c3 $16) 29. Nd4 $1 (29.
Rxa5 $2 Rxd3 $1) 29... Rxd3 ({If} 29... Rf4 $6 {then} 30. Bb5 $1 $16 {(/\Nce6).
} ({Not immediately} 30. Nce6 $2 {because of} Nc6 $1 $17)) 30. Nxd3 Nc4 31.
Rxa7 Nxd2 32. Nxf5 Rf8 {White has slight advantage, but it must be a draw.}) ({
Objectively the best move is} 24. Qg3 $1 Rxf4 ({Important to see, that} 24...
Qb6 $2 25. Rxf5 Rc8 {doesn't work, because of} 26. Ra4 $1 Rxc5 27. Rxb4 Qxb4 ({
or} 27... Rb5+ 28. Qf2 $1 $18) 28. Qd6 $1 $18) 25. Qxf4 Ne4 26. N5xe4 Bxe4 27.
Bxe4 fxe4 28. Rf1 $36 {White has serious initiative, but Black can hold the
equality.} Qd4+ $1 29. Kh1 Qc4 $1 {For example} 30. h3 e3 $1 31. dxe3 Rxe3 32.
Qf8+ Kh7 33. Qf5+ Kh8 {Both variations, 24.Qg3 and 24.Qf2 leads to initiative
for White, but in both lines, White should exactly calculate Black's threats.
It's difficult to do it in timetrouble, and much more difficult to go on one
of this line, when you have normal alternative.}) 24... Rxe3 25. dxe3 {Here
White offered a draw. During the game, I thought, that the queen is better
then rooks in this position, and that I have good chances to make the attack.
Now I think, that Black has practical initiative, but the position is about
equal.} Nc6 {Very natural, but may be not the best. Here we both have about 5
min.} ({I didn't find something really better, but now I like more} 25... Qe8
$5 26. Nd1 {and now} Nc6 {Black has similar ideas, but with N on d1 White has
less opportunitys.}) 26. Rb5 $1 {Other moves leads to advantage for Black.} (
26. Rf4 $2 Qe7 $17) ({Or} 26. Rc4 $2 Qe7 27. Nd1 Ne5 28. Rb4 Bc6 $17 {(/\Nh3;/
\Ngf3;/\Nef3).}) 26... f4 $5 {Trying to create initiative.} ({Bad is} 26... Ne5
$6 27. Ne6 $1 Nef3+ ({if} 27... Nxe6 {then} 28. Rxe5 $16) 28. gxf3 Nxe6 29.
Rxf5 $16) ({If here} 26... Qe8 {, then White plays already} 27. Nd5 $1 Nd8 {
threatening to "e3" pawn} 28. Nb3 Qe5 29. Re1 $1 $13) ({Combination} 26... Nd4
27. exd4 Qxd4+ {leads to the draw} 28. Kh1 Bxg2+ ({Too dangerous} 28... Qxc3 $6
29. Rb8+ Kf7 30. Rf1 $1 (30. Rxa7+ Kg6) 30... Bd5 31. Rc8 {For example} Ne6 32.
Ne4 $1 Qb2 33. Nd6+ Ke7 34. Nxf5+ Kd7 35. Rg8 a5 36. Ne3 $16) 29. Kxg2 Qg4+ 30.
Kf1 Qf3+ 31. Ke1 Qe3+ 32. Ne2 Nf3+ 33. Kf1 Nd2+ 34. Ke1 ({or} 34. Kg2 Qf3+ 35.
Kg1 Qe3+ $11) 34... Nf3+ $11) 27. h4 $5 {Generally, White shouldn't weaken the
position of the king, but here, this is a fight for the initiative, as Black
knight has not too much squares for retreat.} ({Of course not} 27. e4 $2 Qd4+
$19) ({Quite strong is} 27. Rd1 Qe8 28. N5e4 $13) 27... f3 $5 {Continue in
tricky style} ({It's too early for combination} 27... Nh3+ $2 28. gxh3 Qxh4 29.
N5e4 Qxh3 30. exf4 Qg4+ 31. Kf1 Qxf4+ 32. Nf2 $16) ({Normal alternative is
retreat} 27... Nf7 $13 {For example} 28. Rf1 a6 $5 29. Nxa6 Nfe5 30. Nb4 ({
Bad is} 30. Rxf4 $2 Nxd3 $17) 30... Nxd3 31. Nxd3 fxe3 $13) 28. N5e4 $2 {
After this, Black gets advantage.} ({Of course, knight is untouchable} 28. hxg5
$2 Qxg5 $19) ({Normal move is} 28. Rd1 {For example} Qe8 29. N5e4 Nxe4 30. Bxe4
Ne7 $1 31. Bxa8 Qxa8 32. Nd5 Qe8 33. Rdb1 Kh7 $1 34. Nxe7 Qxe7 35. gxf3 Qxe3+
36. Kg2 $15 {Black is better, but it must be a draw.}) 28... Nxe4 29. Nxe4 fxg2
30. Kxg2 Qe8 $6 {(/\Ne5). In timetrouble, I decided don't open one more line,
near the king.} ({Right move is ,of course,} 30... Qxh4 $1 31. Rh1 {and now}
Qd8 $1 ({Less accurate} 31... Qg4+ 32. Kf2) {Black has clear advantage. For
example} 32. Kf1 $5 g6 $1 33. Ke2 Kg7 $17 {(/\Qc7,Ne7).}) 31. Rab1 {Black
still has initiative, but White has enough resources for successful defence.}
a6 $5 32. Rb6 a5 $1 {(/\Nb4).} 33. R1b5 a4 $5 {Making the second weakness.
White will must to use some pieces to stop the pawn. First one is White's king.
} 34. Kf2 {White has also another opportunitys, but this move doesn't spoil
nothing.} a3 35. Ra6 Qc8 36. Rc5 $2 {After this, Black gains serious advantage}
({Necessary was} 36. Ra4 $1 Ne7 37. Nd6 $1 ({worse is} 37. Rxa3 $6 Bc6 38. Rc5
({or} 38. Rb4 Nd5 39. Rbb3 Qh3 $17 {and if} 40. Rb8+ $6 {then} Kf7 $1 41. Ra7+
Ke6 42. Nc5+ Ke5 $1 $19) 38... Qg4 39. Rc4 Qxh4+ $15 {Position is compicated,
but it's easier to play with queen.}) 37... Qf8+ 38. Rf4 Qd8 39. Bc4+ $1 Kh7
40. Bd3+ Kg8 ({Doesn't help} 40... g6 41. Rf7+ Kh8 42. Rf6 $1 Kg7 43. Rf7+ Kh8
$11) 41. Bc4+ Kh7 $11) 36... Qf8+ $1 37. Ke2 Nb4 {(/\Be4).} 38. Raa5 a2 39.
Bc4+ $2 {Decisive mistake.} ({Bad is} 39. Rc7 $6 Bd5 $1 40. Rca7 Qb8 {Here we
see the conception of two weaknesses in action. One is "a" pawn, both White
rooks working to stop it, second is White's king, Black queen is ready to
start attack.}) ({More persevering} 39. Rf5 $1 Qb8 $1 ({It's not a time for} 
39... Qxf5 $2 40. Rxa8+ $1 $18) 40. Nc3 ({or} 40. Rfb5 Qd8 41. Ra7 Nxd3 $1 42.
cxd3 Bd5 $17 {For example} 43. h5 Bf7 {(/\Qh4).} 44. Rba5 Qb6 $17) 40... Nxd3
41. Kxd3 Qd8+ 42. Kc4 ({Bad is} 42. Ke2 $2 Qc8 $17 {(/\Qf5).}) {and here the
most simple} 42... Bg2 $1 {(/\Bh3)} 43. Rxa2 (43. h5 $2 Bh3 $1 $19) 43... Qxh4+
$17 {Black's pawns will go very quickly.}) 39... Kh7 $1 $19 {Important move.} (
{Much weaker} 39... Kh8 $2 {this gives White chances to complicate the game.
For example} 40. Re5 $5 {and if} Nc6 {then} 41. Rf5 $1 {and Black can't take}
Qxf5 $2 {because of} 42. Rxa8+ $1 Kh7 43. Ng5+ $1 hxg5 44. Bd3 $18 {and White
even wins.}) 40. Rcb5 ({Now if} 40. Re5 {then} Nc6 $19 {simply wins.}) ({If} 
40. Bd3 {then} Nxd3 41. cxd3 Bxe4 42. dxe4 a1=Q 43. Rxa1 Qxc5 $19) 40... Bxe4 {
We passed time control. White resigned.} 0-1

[Event "Paleochora op 13th"]
[Site "Paleochora"]
[Date "2020.07.19"]
[Round "3"]
[White "Christiansen, Johan Sebastian"]
[Black "Spyropoulos, Nikolaos"]
[Result "1/2-1/2"]
[ECO "C58"]
[WhiteElo "2612"]
[BlackElo "2403"]
[Annotator "Kapnisis,Spyridon"]
[PlyCount "81"]
[EventDate "2020.07.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GRE"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

{[%evp 0,81,19,28,26,24,16,24,24,-8,-5,-1,-18,-23,-23,-29,-16,-15,-52,-23,4,11,
11,7,37,37,43,26,55,27,20,20,23,-23,39,-5,-12,-4,10,10,10,-86,-41,-41,-10,60,
60,34,-29,-29,11,-15,-15,-57,-39,-39,-43,-146,-171,-171,-171,-211,-198,-222,
-185,-240,-210,-200,-177,-228,-213,-231,-168,-183,-163,-201,-5,-12,-2,-2,-2,-1,
0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6
bxc6 8. Bd3 {The main line, at least, in the last couple of years} Nd5 (8...
Ng4 $5 {is far less common than 8...Nd5 but the fact that Grischuk used it in
an important game is a good sign that things are far from clear.} 9. Ne4 (9.
Nh3 $5) 9... f5 10. Be2 $1 h5 11. h3 fxe4 12. hxg4 Bc5 {1/2 (45) Vitiugov,N 
(2727)-Grischuk,A (2766) Riga LAT 2019 became sharp very quickly}) 9. Nf3 (9.
h4 h6 10. Qh5 Qf6 11. Ne4 (11. Nh7 Rxh7 12. Bxh7 g6 13. Qe2 Nf4 14. Qf3 Bb7 $44
) 11... Qe6 12. b3 g6 13. Qe2 f5 14. Ng3 $2 (14. Nec3 Nf4 $44) 14... e4 (14...
Bg7 $17) 15. Bb2 $13 {1-0 (51) Mamedov,R (2659)-Grandelius,N (2673) Wijk aan
Zee NED 2020}) 9... Bd6 10. Nc3 (10. O-O O-O (10... Nf4 11. Nc3 (11. Re1 Nxd3
12. cxd3 O-O 13. Nc3 c5 14. b3 Re8 $44 {0-1 (44) Fakhrutdinov,T (2481)
-Inarkiev,E (2693) St Petersburg RUS 2018}) 11... Nxd3 12. cxd3 O-O 13. b3 c5
14. Ba3 Nc6 15. Ne4 Nb4 (15... Bg4 $5) (15... Be7 $5) 16. Bxb4 cxb4 17. Re1 $14
{1/2 (43) Aronian,L (2765)-Ding Liren (2805) Saint Louis USA 2019}) 11. Re1 Re8
(11... f5 $5 12. Nxe5 Qf6 13. Nf3 g5 {1-0 (54) Aronian,L (2772)-Vidit,S (2722)
Kolkata IND 2019 has been tried in a few games with mixed results.}) 12. Nc3 f5
13. Bf1 e4 14. Nd4 (14. Nxd5 $5 cxd5 15. Nd4 Qf6 $44) 14... Bc5 {1-0 (32)
Aronian,L (2775)-Amin,B (2683) Moscow RUS 2019} (14... Nf6 $1 $44)) 10... O-O
11. Be2 f5 (11... Nf4 12. O-O Bg4 (12... c5 $5) 13. d3 Nxe2+ 14. Qxe2 f5 15. h3
Bh5 16. g4 $1 fxg4 17. Ng5 $14 {1/2 (45) Van Foreest,J (2644)-Carlsen,M (2872)
Wijk aan Zee NED 2020 White has won the opening battle against the world
champion.}) 12. d3 Nxc3 13. bxc3 {[#]} c5 $5 $146 {An interesting novelty
which was probably found over the board.} (13... e4 14. Nd4 (14. Nd2 $5) (14.
dxe4 {Opening the f-file seems illogical.} fxe4 15. Nd4 Qh4 $44) 14... Qf6 (
14... c5 $5 15. Nb3 Be6) 15. O-O Qe5 16. f4 $16 {1-0 (69) Yu Yangyi (2709)
-Ding Liren (2791) chess24.com INT 2020 Black failed to prove enough
compensation and White won a fine game}) 14. Nd2 (14. Rb1 $5 {is a possible
improvement:} Qc7 15. O-O Bb7 16. Ng5 Rf6 17. f4 Bc6 (17... exf4 $6 18. Bf3 $14
) (17... h6 18. Nh3)) (14. O-O Rb8 $5) 14... Bb7 (14... Rb8) 15. O-O Qc7 16. g3
Rad8 17. Rb1 e4 $5 (17... c4 $5 18. d4 (18. Bf3 Ba6 $44) 18... e4 $5 (18... Bd5
19. Bf3 e4 20. Bg2 Nc6 21. Re1 Ne7 22. Nf1 h6 $44) (18... f4 19. Rxb7 $5 Qxb7
20. Bf3 $44) 19. Nxc4 Nxc4 20. Bxc4+ Qxc4 21. Rxb7 Qc6 22. Rb3 f4 {Black has
adequate compensation.}) 18. f4 $6 {[#] White stops f4 but the cost is a bit
high since he has permanently weakened his king.} (18. dxe4 f4 $5 {Sacrificing
a second pawn is an interesting alternative to the standard fxe4.} (18... fxe4
19. Qe1 $1 (19. Bg4 $2 e3 20. fxe3 Bxg3 21. Qe2 Be5 $15 {Black is clearly
preferable since his pieces are more active and White's extra pawn is of no
significance.}) 19... Kh8 (19... c4 $2 20. Nxc4 $1 $16) 20. Nc4 Nxc4 21. Bxc4
e3 22. Bxe3 Qc6 23. Rxb7 Qxb7 24. Qe2 $44 {[%cal Yc4d3,Ye2h5] White's position
is better since the black rooks have no targets to attack while the black king
is not entirely safe.}) 19. Qe1 (19. Kg2 Rf6 $44 {[%cal Yd8f8]}) 19... Kh8 $5 (
19... Bc8 $5 20. Kg2 Rf6 $5 (20... Qd7 21. Nf3 Nc6 22. Ng1 {White faces no
immediate danger.})) (19... Nc6 20. f3)) 18... g5 $5 {Black chooses tο go for
White's throat as fast as possible. A daring move that leads to a series of
almost forced moves.} (18... Rfe8 $5 {It is difficult to suggest moves for
White since Black is in control of the central files.} 19. d4 (19. dxe4 $2 c4
$1 $17 {[%cal Yd6c5] Black gets a strong attack.}) (19. c4 Nc6 $17) 19... cxd4
20. cxd4 Be7 21. Bb2 Bf6 $44) 19. dxe4 (19. fxg5 $2 Bxg3 $19) (19. Rxb7 $5 {
is a decent practical choice making White's king safer at the cost of an
exchange.} Qxb7 (19... Nxb7 20. Nc4 gxf4 21. Nxd6 Nxd6 22. Bxf4 $44) 20. dxe4
gxf4 (20... fxe4 21. Nc4 Bxf4 22. Qe1 Bxc1 23. Nxa5 $1 Be3+ 24. Kh1 Qc7 25. Nc4
$13) 21. exf5 fxg3 22. Bf3 gxh2+ 23. Kh1 Qg7 $1 24. Bg2 Be7 $1 25. Qe1 Bg5 26.
c4 $15) 19... gxf4 $1 (19... fxe4 $6 20. Nc4 $1 Nxc4 (20... Bxf4 $2 21. Qe1 $18
) 21. Bxc4+ Kh8 22. fxg5 Bxg3 23. Rxf8+ Rxf8 24. Be3 $1 Bxh2+ 25. Kh1 Qg3 26.
Qd4+ cxd4 27. Bxd4+ Qe5 28. Rxb7 $14) 20. exf5 (20. Nc4 $2 Nxc4 (20... fxg3 $2
21. Nxd6 $16) 21. Bxc4+ Kh8 $17) 20... fxg3 21. Bf3 Ba6 {[#]} (21... gxh2+ 22.
Kh1 Bc6 {Black is already better.}) 22. Bd5+ $2 {This completely logical move
which blocks the d-file is apparently a big mistake.} (22. c4 $1 Be5 23. Qe2 $1
Nc6 $15) 22... Kh8 23. c4 (23. Re1 Rxf5 $19) 23... Be5 $1 {[%cal Ya5c4]} 24.
Qf3 {[#]} Bc8 $2 {Black loses valuable time and misses a couple of ways to
finish the game in style.} (24... Rg8 $1 {Black has the deadly threat of Bd4+/
g2+ and White is in no position to deal with it.} 25. Bxg8 Rxg8 26. Kg2 gxh2+
27. Kh1 Bd4 $19 {[%cal Yg8g1]}) (24... Bd4+ $1 25. Kh1 Rxd5 $1 26. cxd5 (26.
Qxd5 Nxc4 $1 27. Nxc4 Bxc4 28. Qxc4 Qc6+) 26... g2+ $1 27. Qxg2 (27. Kxg2 Rg8+
28. Kh3 (28. Kh1 Bxf1 $19) 28... Qg7 $1 $19 {[%cal Yg7h6]}) 27... Rg8 $19 {
[%cal Ya6f1]}) 25. Qh5 $2 (25. hxg3 $1 Bxf5 (25... Rxf5 26. Qe2 $16) 26. Qg2
$16) 25... Qg7 (25... Bd4+ $5 26. Kg2 Qe5 27. hxg3 Bxf5 $44) 26. Nf3 gxh2+ 27.
Kh1 Rxf5 {[#]} 28. Qxf5 $2 {White miscalculates and ends up in a clearly worse
ending. White probably missed Black's 30th move.} (28. Bg5 Rdf8 29. Qh4 Bf6 $13
) 28... Bxf5 29. Nxe5 Qxe5 30. Bb2 {[#]} Rxd5 $1 31. Bxe5+ (31. cxd5 $4 Be4+
32. Rf3 Bxf3#) 31... Rxe5 32. Kxh2 Nxc4 $19 33. Rb7 Ne3 (33... a5) 34. Rf4 a5
35. c4 Nc2 (35... a4 $5) 36. Ra7 Nd4 37. Rxa5 {[#]} Kg7 $2 {In heavy time
pressure Black blunders.} 38. Rxd4 $1 Re2+ 39. Kg3 cxd4 40. Rxf5 Rxa2 41. Rd5
1/2-1/2

[Event "Queens-Kings"]
[Site "Jinan"]
[Date "2002.07.21"]
[Round "1"]
[White "Short, Nigel D"]
[Black "Xie, Jun"]
[Result "0-1"]
[ECO "C58"]
[WhiteElo "2682"]
[BlackElo "2562"]
[Annotator "Kortschnoj,V"]
[PlyCount "86"]
[EventDate "2002.07.21"]
[EventType "schev"]
[EventRounds "4"]
[EventCountry "CHN"]
[SourceTitle "CBM 091"]
[Source "ChessBase"]
[SourceDate "2002.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.12"]
[SourceQuality "1"]

1. e4 {Lukacs} e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ Bd7 {
The well-known centuries away move is 6...c6, with compensation for the
sacrificed pawn. But if somebody is not enriched with the knowledge of the
chess theory of the past, this modest move is also playable!  Lukacs: 'This is
the other way of sacrificing a P for quick development.'} (6... c6 {(Lukacs)
is the main line with wild complications.}) 7. Qe2 $2 {The first independent
move in a new position and already a serious mistake. 7.Bd7 Qd7 8.0-0 or 7.Nc3
had to be preferred.} Be7 $1 {Lukacs: 'This is the best reply according to
nowadays' theory.'} (7... Bd6 $6 {Lukacs} 8. Nc3 O-O 9. Bxd7 Qxd7 10. a3 $1 $16
{- Morozevich-I.Sokolov, Sarajevo 1999 CBM 71}) 8. Nc3 {White, perhaps, had in
mind to continue here 8.d4 exd4 9.b4 but then realized that after 0-0 10.bxa5
Bb4 followed by Re8 he would be exposed to a crushing attack.} (8. b4 $6 {
(Lukacs) is quite unnatural.} Bxb4 9. Qxe5+ Qe7 10. Qxe7+ Bxe7 11. Bxd7+ Nxd7
12. Ne4 Nf6 13. Nbc3 Nxe4 14. Nxe4 O-O-O 15. Bb2 Rhg8 16. d3 Rxd5 17. O-O Nc6
$15 {Yin Hao-Peng Xiaomin, Sufe Cup Shanghai 2000}) (8. O-O {Lukacs} O-O 9.
Bxd7 Qxd7 $44) (8. Bxd7+ {Lukacs} Qxd7 9. Qxe5 Nxd5 (9... O-O {Lukacs} 10. O-O
Nxd5 ({On} 10... Ng4 $6 {Lukacs} 11. Qg3 $1 {looks pretty strong.} (11. Qc3 $6
{Lukacs} Bxg5 12. Qxa5 Qd6 13. g3 Qh6 14. h4 Bxh4 $1 $17 {Janicki-Kuprejanov,
Vancouver, 1971}) 11... Bxg5 12. h3 f5 13. hxg4 fxg4 14. d3 $16 {and White
will soon finish his development.}) 11. Nc3 {- 8.Nc3 0-0 9.Bxd7 Qxd7 10.0-0
Nxd5}) 10. Nc3 Nb4 11. O-O Nxc2 12. Qxa5 Nxa1 13. d4 O-O 14. Rd1 Nc2 15. Rd3
Nxd4 16. Nd5 c5 17. Nxe7+ Qxe7 18. Bd2 b6 $17 {Paleologu-Wedberg, New York 2000
}) 8... O-O 9. O-O {An innocent move, it seems. But soon it turns out, that 10.
Bd7 Qd7 11.Nf3 would be much safer.} (9. Bxd7 {Lukacs} Qxd7 10. O-O (10. d3 {
Lukacs} Nxd5 11. Nxd5 {1/2:1/2 Estrin-Grabczewski, Lublin 1974} (11. Nxh7 $6 {
(Lukacs) White is playing with fire, he has to finish his development first
instead of going for tactical tricks.} Rfe8 12. Qh5 {(Garcia Ramos,J-Alvarez
Ibarra, Sevilla 1994)} (12. Ng5 {Lukacs} Nf4 $1 (12... Nxc3 {Lukacs} 13. bxc3
Qc6 14. Qe4 Qxc3+ 15. Bd2 Qxa1+ 16. Ke2 $16) 13. Bxf4 exf4 $17) 12... Nb4 $1
$132)) 10... Rfe8 (10... Nxd5 {Lukacs} 11. Qxe5 c6 12. d3 Rfe8 13. Bd2 Ba3 (
13... Bd6 {Lukacs} 14. Qd4 $16 {A.Sokolov-Berzins, Basel 2000}) 14. Qd4 Bxb2
15. Rab1 Bxc3 16. Bxc3 {and Black's main problem the N on a5 becomes
vulnerable.} f6 17. Ne4 $14 {A.Sokolov}) 11. d3 Bb4 (11... Bf8 {Lukacs} 12. Qf3
Rad8 13. Bd2 b6 14. Nce4 Nxd5 15. Qh5 Qf5 16. Ng3 Qg6 17. Qxg6 hxg6 18. a3 Nc6
$11 {Neumann-Fricke, Baden 1999}) 12. Bd2 Bxc3 (12... Nxd5 $4 {(Lukacs) is
feeble due to the double -> after} 13. Qe4 $1 f5 14. Qxd5+ Qxd5 15. Nxd5 Bxd2
16. Nf3 Rad8 17. Nxc7 Re7 18. Nb5 $16 {Gretarsson-Mich.Rygaard, Stockholm 1992}
) 13. Bxc3 (13. bxc3 $5 {Lukacs}) 13... Qxd5 14. Qd2 Nc6 $11 {Pavasovic-Flear,
Asti 1996}) (9. Nge4 {Lukacs} Nxe4 10. Qxe4 f5 11. Qe2 c6 12. dxc6 Nxc6 $44 {
Tomcik-Hudoba, SVK 1999}) 9... Bg4 $1 (9... c6 {Lukacs} 10. dxc6 Nxc6 11. Bxc6
Bxc6 12. d3 {White is a P up, but Black's pieces are very active and he has a
strong ^^.} Re8 (12... Nd5 $44 {Lukacs} 13. Nxd5 Qxd5 14. Nf3 (14. Qe4 {Lukacs}
f5 15. Qxd5+ Bxd5 16. Re1 Bf6 17. c4 Bc6 $44 {Herbrechtsmeier-Sutterer,
Schonach 1979}) 14... f6 15. Re1 Rfd8 $14) 13. Be3 Nd5 14. Qh5 Bxg5 15. Bxg5
Qb6 16. Nxd5 Bxd5 17. c4 Bc6 18. b3 Re6 19. Be3 Qd8 20. Rad1 Rg6 $44 {
Marciano-Flear, Clichy 1995}) (9... Bxb5 {Lukacs} 10. Qxb5 c6 11. dxc6 Nxc6 {
(Paoli-Uzman, Norristown 1973)} 12. Re1 $16) 10. Qxe5 $6 {10.f3 would be more
circumspect.} (10. f3 {Lukacs} Bh5 11. Bd3 Re8 12. Kh1 c6 13. dxc6 Nxc6 {
and White has terrible problems with the development of his <<.} 14. g4 Bg6 15.
Bxg6 hxg6 16. d3 Nd4 17. Qg2 Rc8 $44 {V.Sergeev-Berezjuk, Tatranska Lomnica
1998}) 10... Bd6 11. Qd4 $146 {This move is losing on the spot. 11.Qe3, with
an aim to put the queen eventually to d3, was the only chance to survive.} ({RR
} 11. Qe3 a6 (11... Bf5 {Lukacs} 12. f3) 12. Be2 (12. Bd3 {Lukacs} Re8) 12...
Re8 13. Qd3 Bxe2 14. Nxe2 Bxh2+ 15. Kxh2 Ng4+ 16. Kg1 Qxg5 17. Nc3 Qf4 18. Qg3
Qxg3 19. fxg3 Nc4 20. b3 Nb6 21. Ba3 Red8 22. Rf4 h5 23. d6 Rac8 24. Re1 cxd6
25. Re7 f6 26. Rxb7 Rc6 27. Ra7 Re8 28. Rf1 Nc8 29. Rd7 Kh7 {1/2-1/2
Herbrechtsmeier,C-Nunn,J/Germany 1985/GER-chT (29)}) 11... c5 $1 {Winning move.
12.dxc6 is not possible because of Bxh2+, so white, being totally cramped, is
to lose a piece.} (11... a6 {(Lukacs) comes into consideration as well.} 12.
Be2 (12. Ba4 $6 {Lukacs} c5 $1 {is the main idea!} 13. Qd3 b5) (12. Nge4 $6 {
Lukacs} Nxe4 $1 13. Nxe4 (13. Qxe4 {Lukacs} f5 14. Qe6+ Kh8 $13) 13... c5 $1
14. Nxc5 axb5 $13) 12... c5 $1 {This is the main motif again.} 13. Qe3 (13. Qd3
{Lukacs} c4 14. Qe3 Re8 $44) 13... Re8 $44) 12. Qd3 {'?' Lukacs. Lukacs: 'This
blocks the retreat of the b5 B.'} (12. Qe3 {(Lukacs) was best, although after}
a6 13. Bd3 Re8 {Black's pieces remain very active.}) 12... a6 13. h3 Bc8 (13...
Bh5 $15 {Lukacs}) 14. Ba4 b5 15. Nxb5 axb5 (15... c4 {Lukacs} 16. Qf3 axb5 17.
Bxb5 Bb7 $15) 16. Bxb5 {Lukacs: 'White has got a lot of pawns for the piece,
but the _|_ is very far away.'} c4 $1 {Again the strongest move.Taking twice
on c4 is bad because of 18...Ba6.} 17. Qd4 Bb7 18. d3 Bxd5 19. Be3 Qc7 20. Rad1
Bh2+ 21. Kh1 Be5 22. Qc5 Qb7 23. f3 Rfc8 24. Qb6 Qxb6 25. Bxb6 Rcb8 {It is a
proper time to resign, but white is simply ashamed to lose such a short game!}
26. Bxa5 Rxb5 27. Bc3 Bxc3 28. bxc3 h6 29. Ne4 Bxe4 30. dxe4 Rxa2 31. Rd4 Rxc2
32. Rxc4 Rbb2 33. Rg1 Nh5 34. e5 Ng3+ 35. Kh2 Ne2 ({After} 35... Nf1+ 36. Kh1
Ne3 {the game would end five-six moves ealier.}) 36. Re1 g5 37. Rg4 Kg7 38. h4
Kg6 39. hxg5 hxg5 40. Ra1 Nf4 41. Ra6+ Kh5 42. Rf6 Nxg2 43. Kg3 Ne3 0-1

[Event "Maastricht Complete Chess m"]
[Site "Maastricht"]
[Date "2008.03.06"]
[Round "4"]
[White "Stellwagen, Daniel"]
[Black "L'Ami, Erwin"]
[Result "1/2-1/2"]
[ECO "C58"]
[WhiteElo "2625"]
[BlackElo "2581"]
[Annotator "L'Ami,E"]
[PlyCount "67"]
[EventDate "2008.03.03"]
[EventType "match"]
[EventRounds "4"]
[EventCountry "NED"]
[SourceTitle "CBM 124"]
[Source "ChessBase"]
[SourceDate "2008.05.28"]
[SourceVersion "1"]
[SourceVersionDate "2008.05.28"]
[SourceQuality "1"]

{From 3 till 6 March Daniel Stellwagen and yours truly played an advanced 
(computer assisted) chess match in Maastricht. In games 3 and 4 the moves 1.e4
e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 were obligatory. This is the fourth game which
was most exciting of all.} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5
6. Bb5+ c6 7. dxc6 bxc6 8. Bd3 $5 ({The third game, in which I had White,
continued with the classical} 8. Be2 h6 9. Nf3 e4 10. Ne5 Bc5 11. c3 Bd6 12. d4
exd3 13. Nxd3 O-O $1 14. O-O Re8 {and it was suprisingly difficult for White
to move;} 15. b4 (15. Nd2 Bf5 {(threatening Rxe2!)} 16. Ne1 Qc7 17. Nef3 Rad8 {
looks really bad.}) (15. Bf4 Bxf4 (15... Rxe2 $5 16. Qxe2 Ba6 17. Qd1 Bxd3 18.
Qxd3 Bxf4 19. Qxd8+ Rxd8 20. Na3 {is another option.}) 16. Nxf4 Qxd1 17. Rxd1 (
17. Bxd1 Ba6 $17) 17... g5 18. Nh5 Rxe2 19. Nxf6+ Kg7 20. b4 Kxf6 21. bxa5 Rb8
{with a clear advantage in the endgame.}) (15. Be3 Qc7 16. h3 ({forced, because
} 16. g3 {runs into} Bh3 17. Re1 $140 Rxe3 $1 18. fxe3 Bxg3 {winning.}) 16...
Bf5 17. Bd4 ({or} 17. Na3 Bxa3 18. bxa3 Rad8 19. Bd4 Nd5 {and White is on the
verge of complete collapse.}) 17... Ne4 18. Nd2 $6 Nxd2 19. Qxd2 c5 20. Be3
Rad8 {when somehow the extra pawn doesn't help White much.}) 15... Nc4 16. Nc5
Ne5 17. Nd2 Nd5 18. Nce4 Bc7 19. Re1 Bf5 {after which I was lucky to escape
with a draw, l'Ami-Stellwagen, Maastricht Advanced Two Knights 2008. It seems
that 13...O-O followed by Re8 is a much stronger concept then trying to
prevent White from castling with 13...Qc7 which was previously played.}) 8...
Ng4 $5 ({After} 8... Nd5 {Whiteґs idea was to continue} 9. Nf3 Nf4 10. O-O {
with advantage. Instead Black should continue 9...Bd6 with reasonable
compensation. I was, however, in a more aggressive mood.}) 9. Ne4 (9. Nf3 f5
10. h3 e4 11. hxg4 exd3 12. cxd3 fxg4 {was better for Black in the recent game
Bird-Lasker, Newcastle on Tyne 1892}) 9... f5 {The following sequence of moves
is forced.} 10. Be2 $1 h5 $1 11. h3 $1 fxe4 12. hxg4 Bc5 13. b4 $1 ({The only
move to fight for the initiative. The ending after} 13. Nc3 Qd4 14. O-O O-O 15.
Qe1 hxg4 16. d3 exd3 17. Bxd3 Rxf2 18. Qxf2 Qxf2+ 19. Rxf2 g3 20. Ne4 gxf2+ 21.
Kf1 Bb6 {is just equal.}) 13... Qd4 14. bxc5 O-O 15. O-O Qxa1 16. Nc3 e3 $1 ({
It was this move which made me go for 8...Ng4. My engine first showed} 16...
hxg4 {but White looks slightly better after} 17. Nxe4 Qxa2 18. d3 {.}) 17. gxh5
exf2+ 18. Rxf2 Rxf2 19. Kxf2 Be6 20. Bf3 (20. Ba3 Qxd1 21. Bxd1 Rf8+ 22. Kg3 g6
23. hxg6 Kg7 {should be a draw. Black continues by taking on g6, followed by
Bd7 and Nb7-d8-e6.}) 20... Rf8 21. Kg3 Bxa2 {With a computer next to you it is
much easier to snatch such pawns.} 22. Qe1 Be6 (22... Bf7 23. Kh2 $1 {is
dangerous for Black;} Re8 24. h6 gxh6 25. Ne4 Re6 26. Bg4 Rg6 27. Bf5 {with a
fierce initiative.}) 23. d4 ({After} 23. d3 Nb7 $1 (23... Bf5 24. Ne2 Qa4 25.
Qc3 e4 26. h6 $1 Rf6 27. Bh5 exd3 28. cxd3 {is very dangerous for Black.}) 24.
Qxe5 Qxc1 25. Qxe6+ Kh8 26. Qe5 Nd8 {Black has enough counterplay.}) 23... Nc4
$6 (23... Bf5 {is more precise, when White is forced to make a draw with} 24.
dxe5 Re8 25. h6 Re6 26. Qd2 Nc4 27. Qd8+ Kh7 28. hxg7 Kxg7 29. Qd7+ Kg8 30.
Qd8+ {indicated after the game by the organizer of the match, chess enthusiast
Jan van Reek}) 24. Kh2 Rxf3 ({A correct decision, White still has some threats
after} 24... Kh8 25. h6 $1 gxh6 26. Ne2 {but of course the computer prevented
me from allowing this.}) 25. gxf3 Bf7 26. h6 (26. dxe5 Nxe5 27. Qxe5 Qxc1 28.
Ne4 Qxc2+ 29. Kg3 Qc1 {leads to a draw as well.}) 26... gxh6 27. Ne4 Bg6 28.
Qf1 ({I wonder if, without assistance, I would have found} 28. Qg1 Kf7 29. Qf1
Ne3 30. Nd6+ (30. Qh3 Nf5 {isnґt winning either.}) 30... Kg7 31. Qg1 Nxc2 $1 {
myself, when the computer shows 0.00 :)}) 28... Kh8 29. Qxc4 Qxc1 30. Qe6 Qf4+
31. Ng3 Bh5 {And White has to take the perpetual.} 32. Qc8+ Kh7 33. Qb7+ Kg8
34. Qc8+ 1/2-1/2

[Event "Sarajevo Bosnia 29th"]
[Site "Sarajevo"]
[Date "1999.05.17"]
[Round "1"]
[White "Morozevich, Alexander"]
[Black "Sokolov, Ivan"]
[Result "1-0"]
[ECO "C58"]
[WhiteElo "2720"]
[BlackElo "2620"]
[Annotator "Lukacs,P"]
[PlyCount "81"]
[EventDate "1999.05.17"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BIH"]
[EventCategory "19"]
[SourceTitle "CBM 071"]
[Source "ChessBase"]
[SourceDate "1999.08.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.08.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ Bd7 {This line
has got some popularity these days.} (6... c6 {is the old main line here.}) 7.
Qe2 Bd6 $6 {After this game the alternative 7...Be7 may find more followers.} (
7... Be7) 8. Nc3 O-O 9. Bxd7 Qxd7 10. a3 $1 {/\ b4 against Black's only
inferior piece, the N on a5.} (10. O-O c6 11. dxc6 {allows the black N to come
back to the [+].} Nxc6 12. d3 (12. Nge4 Nxe4 13. Qxe4 Rac8 $5 (13... Rad8 {
/\ Bb8} 14. Nd5 {White wants to stabilize his N in the [+] followed by c4.} Bb8
15. c4 f5 16. Qh4 {(Ciocaltea-Reicher, Bucharest 1953)} e4 $5 {/\ Ne5} 17. b3
Be5 $44 {and Black has a strong pressure on the [+], chances for a >> ->,
while White has still problems with his development.}) 14. Nd5 Bb8 15. c4 $6 f5
16. Qh4 Rf7 17. d3 Ne7 $1 18. Nxe7+ Rxe7 19. b3 Rce8 $44 {Mitchell-Koskela,
cor. 1985}) 12... Nd4 13. Qd1 Rac8 14. Be3 (14. Bd2 Bb8 15. Rc1 h6 16. Nf3 $2
e4 $1 {Levitsky-Kibardin, Moscow 1956}) 14... Ba3 $1 15. Bc1 $5 $13 {Beliavsky}
(15. Bxd4 $6 exd4 (15... Bxb2 $143 16. Bxe5 Bxc3 17. Bxc3 (17. Bxf6 Bxf6 18.
Qh5 h6) 17... Rxc3 18. Rb1 $14) 16. Nge4 (16. bxa3 Rxc3 17. Ne4 Nxe4 18. dxe4
Rfc8 19. Rc1 d3 $1 $17) 16... Nxe4 $1 (16... Bxb2 $2 17. Nxf6+ gxf6 18. Ne4 $16
) (16... dxc3 $6 17. Nxf6+ gxf6 18. bxa3 $16) 17. Nxe4 Bxb2 18. Rb1 Ba3 $17 {
Sulskis-Beliavsky, Koszalin, 1998})) (10. Nce4 $6 Be7 11. c4 Nxe4 12. Nxe4 Qa4
13. d3 b5 $1 $36 {Klovan-Khenkin, SU 1954}) (10. d3 Bb4 (10... c6 11. Nge4 Nxd5
12. Nxd6 Nxc3 13. bxc3 Qxd6 14. O-O Rae8 $11 {Marusenko-Hebden, Hastings 1998})
11. O-O Bxc3 12. bxc3 Qxd5 {If Black gets back the P his position cannot be
worse.} 13. c4 Qd6 14. f4 Rfe8 15. f5 Nc6 16. Be3 e4 $13 {Anderssen-Falkbeer,
Berlin 1851}) 10... b6 {It is sad, but necessary.} (10... Be7 $2 11. b4 $1 Nxd5
12. Nxh7 $1 {This is the typical tactical motif here!} Kxh7 (12... Nxc3 13.
Nxf8 Qd4 14. Qe3) 13. Qe4+ $18) 11. d3 (11. O-O c6 12. b4 Nb7 13. dxc6 Qxc6 14.
Bb2 a5 15. b5 $16 {Julia-German, ARG-chT Buenos Aires 1994}) 11... c6 (11...
Rae8 $5 {Sergeev}) 12. b4 Nb7 13. dxc6 Qxc6 14. Nce4 Nd7 {[#]} (14... Nxe4 15.
Qxe4 Qc3+ $2 16. Bd2 $1 Qxa1+ 17. Ke2 $18) (14... Rfc8 $6 15. c4 $16 {
Sergeev-Schlingensiepen, Havirov 1994} (15. Nxf6+ $5 gxf6 16. Ne4 Be7 (16...
Qxc2 17. Nxf6+ Kh8 (17... Kg7 18. Qg4+) 18. Qe4 Qc3+ 19. Bd2 $1 Qxa1+ 20. Ke2
$18) (16... f5 17. Nf6+ Kg7 18. Nh5+) 17. O-O f5 (17... Qxc2 18. Qg4+ Kh8 19.
Bh6 Rg8 20. Qd7) 18. Ng3 $16)) 15. Qf3 $1 $16 {This is a very important
intermediate move threatening Nf6.} (15. O-O h6 $5 (15... Be7 16. Qf3 (16. f4
f5) 16... f5 17. Nf6+ Qxf6 18. Qxb7 Qd6) 16. Nf3 (16. Qf3 Rac8) (16. Nxd6 Nxd6
17. Nf3 Rac8 18. c4 Rfe8 {/\ e4}) 16... Rfe8 17. Bb2 {is less clear, although
White is still a P up, and has finished the development.}) 15... Be7 (15...
Rac8 $4 {founders on the nice combination} 16. Qf5 $1 g6 17. Qxd7 $1 $18) (
15... Nd8 $4 16. Nxd6 $18) 16. Nxh7 $1 (16. Nf6+ $2 {simply exchanges the
excellent centralized N for a bad one.} Qxf6 17. Qxb7 Rfd8 (17... e4 $2 18.
Qxe4 $1 $18) 18. O-O h6 19. Ne4 (19. Nf3 $2 e4 $1) 19... Qe6 $44) 16... Rfc8 (
16... f5 {loses material after} 17. Nef6+ $1 (17. Nxf8 fxe4) 17... Rxf6 18.
Nxf6+ Qxf6 19. Qxb7 $18) 17. Nhg5 $1 {[%mdl 8] This is the important novelty
of Morozevich, who has infused new life into the forgotten 4.Ng5 line.} (17.
Qh3 {was not enough in} f6 18. O-O Nd8 $1 19. f4 exf4 20. Rxf4 Qe6 21. Qh5 Qf7
22. Qf5 Qe6 23. Qh5 Qf7 24. Qf5 {1/2:1/2 F.Arnold-Iruzubieta, Oropesa del Mar
1996}) 17... f6 {Other tries are not rosy either:} (17... Bxg5 18. Bxg5 $1 (18.
Nxg5 Qxf3 19. Nxf3 Rxc2 20. O-O Nd6 21. Be3 $16) 18... Qxc2 19. O-O $18) (17...
Nd8 18. c4 $1 f6 19. Nh3 Ne6 20. Be3 $16) 18. Nh3 Qxc2 19. O-O Nd8 {White is
still a P up, but at first sight the N on h3 is completely out of play, and
that may balance it.} 20. Be3 $1 (20. Bh6 Qc6) 20... Qc6 (20... Qxd3 $2 {
opens up the d <->.} 21. Rfd1 Qb5 22. a4 Qc6 23. b5 Qb7 24. Nxf6+ $1 Nxf6 (
24... Bxf6 25. Qxb7 $18) 25. Rxd8+ $1 $18) 21. d4 Nf7 {It is not easy for
Black to defend both f4 and g5 squares.} (21... Ne6 $2 22. d5 $1 Qxd5 23. Rfd1
Qc6 24. Rac1 Qb5 25. Nc3 $18) 22. Rad1 Nf8 23. Qg4 (23. d5 {forgets about the
N on h3.} Qd7 24. d6 Bd8 25. g4 a5) 23... Qe6 24. Qxe6 {After the exchange of
queens the _|_ is winning for White.} Nxe6 25. d5 $18 (25. dxe5 Nxe5 26. Nf4
$18) 25... Nf8 26. d6 Bd8 27. g4 {/\ f3 Nhf2 solving the problem of his bad N.}
Rc4 28. f3 g6 29. Kh1 Rac8 30. Nhf2 Nd7 31. Rg1 Kf8 32. Rg3 Rc2 (32... f5 33.
gxf5 gxf5 34. Rdg1 $1 $18) 33. h4 Re2 $6 (33... a5) 34. Bd2 {The R is trapped.}
f5 35. gxf5 Bxh4 (35... gxf5 36. Ng5) 36. Rh3 Bxf2 37. fxg6 $1 Rxd2 (37... Nd8
38. Rh7 $18) (37... Be3 38. Bxe3 Rxe3 39. gxf7 Kxf7 40. Rh7+ Ke6 41. Ng5+ Kf6
42. Rxd7 Kxg5 43. Re7 $18) 38. Nxd2 Nxd6 39. Ne4 Nxe4 40. Rh8+ Kg7 41. Rxc8 1-0

[Event "RUS-chT 12th"]
[Site "Sochi"]
[Date "2005.04.26"]
[Round "8"]
[White "Yakovich, Yuri"]
[Black "Yandemirov, Valeri"]
[Result "1/2-1/2"]
[ECO "C58"]
[WhiteElo "2565"]
[BlackElo "2503"]
[Annotator "Lukacs,P"]
[PlyCount "144"]
[EventDate "2005.04.19"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "RUS"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Samara Yunilain"]
[BlackTeam "Kazan Ladya"]
[WhiteTeamCountry "RUS"]
[BlackTeamCountry "RUS"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ Bd7 (6... c6 {
is the old main line.}) 7. Qe2 (7. Bxd7+ {has the better reputation.} Qxd7 8.
O-O (8. Nc3)) 7... Be7 {This is the best reply according to nowadays' theory.}
(7... Bd6 $6 {Morozevich-I.Sokolov, Sarajevo Bosnia1999 CBM 71}) 8. Bxd7+ (8.
Nc3 {- Short-Xie Jun, Jinan 2002 CBM 91}) 8... Qxd7 9. Nc3 (9. Qxe5 {is simply
too greedy, White has to finish the development instead of hunting pawns.} O-O
(9... Nxd5 10. Nc3 Nb4 11. O-O Nxc2 12. Qxa5 Nxa1 {The N will come out of the
trap.} 13. d4 O-O 14. Rd1 Nc2 15. Rd3 Nxd4 16. Nd5 c5 17. Nxe7+ Qxe7 18. Bd2 b6
$17 {Paleologu-Wedberg, New York 2000}) 10. O-O (10. Nf3 Bd6 11. Qd4 Rfe8+ 12.
Kf1 {The white K is pathetic, Black's lead of development is the major factor
here.} Ne4 13. b4 c5 $17 {Kalinsky-Kulomzin, Kiev 1903}) (10. Ne4 Nxd5 $17 {
Shumilin-Hock, Vienna II 1996}) 10... Nxd5 (10... Ng4 $6 {is strongly met by}
11. Qg3 $1 (11. Qf4 Bd6 12. Qe4 Bxh2+ 13. Kh1 Nf6 14. Qh4 Bd6 15. Nc3 $13 {
Ridjicki-Milovanovic, corr 1972}) (11. Qc3 $6 Bxg5 12. Qxa5 Qd6 13. g3 Qh6 14.
h4 Bxh4 $17 {Janicki-Kuprejanov, Vancouver, 1971}) 11... Bxg5 12. h3 f5 13.
hxg4 fxg4 14. d3 $16 {and White will soon finish his development.}) 11. Nc3 {
- 9.Nc3}) 9... O-O 10. O-O (10. Qxe5 $2 {is again stupid:} Bd6 11. Qd4 Rfe8+
$36) (10. d3 Nxd5 11. Nxd5 {(1/2:1/2 Estrin-Grabczewski, Lublin 1974)} (11.
Nxh7 $6 Rfe8 $1 {This is the cold-blooded answer!} 12. Qh5 {(Garcia Ramos,
J-Alvarez Ibarra, Sevilla 1994)} (12. Ng5 Nf4 (12... Nxc3 13. bxc3 Qc6 14. Qe4
Qxc3+ 15. Bd2 Qxa1+ 16. Ke2 $16) 13. Bxf4 exf4 $17) 12... Nb4 $1 $132) (11. h4
Nxc3 12. bxc3 Qc6 $5 (12... Nc6 $6 13. Qe4 f5 14. Qc4+ Kh8 15. Nf7+ Rxf7 16.
Qxf7 Nd4 {~~ Van der Tak} 17. O-O $1 (17. Kd1 Rf8 18. Qh5 Ne6 $44 (18... g6 19.
Qh6 Ne6 $13 (19... f4 $5 20. cxd4 {Jablonski-Stull corr 1988} Qg4+ 21. Kd2 Rf5
$132))) 17... Rf8 18. Qh5 Nxc2 19. Rb1 Qxd3 20. Rxb7 $14) 13. Qe4 Qxe4+ 14.
Nxe4 f5 $15) 11... Qxd5 12. Qe4 Qxe4+ 13. Nxe4 Nc6 $15) 10... c6 $6 (10... Nxd5
11. Qxe5 c6 12. d3 Rfe8 13. Bd2 Ba3 (13... Bd6 14. Qd4 $16 {A.Sokolov-Berzins,
Basel Hilton op 2000}) 14. Qd4 Bxb2 15. Rab1 Bxc3 16. Bxc3 {and Black's main
problem the N on a5 becomes vulnerable.} f6 17. Ne4 $14 {A.Sokolov}) (10...
Rfe8 $142 11. Nf3 (11. Qxe5 Ng4 12. Qf4 Bd6 $13) (11. d3 Bb4 (11... Bf8 12. Qf3
Rad8 13. Bd2 b6 14. Nce4 Nxd5 15. Qh5 Qf5 16. Ng3 Qg6 17. Qxg6 hxg6 18. a3 Nc6
$11 {Neumann-Fricke, Baden 1999}) 12. Bd2 Bxc3 (12... Nxd5 $4 {is feeble due
to the double -> after} 13. Qe4 $1 f5 14. Qxd5+ Qxd5 15. Nxd5 Bxd2 16. Nf3 Rad8
17. Nxc7 Re7 18. Nb5 $16 {Gretarsson-Mich.Rygaard, Stockholm 1992}) 13. bxc3 (
13. Bxc3 Qxd5 14. Qd2 Nc6 $11 {Pavasovic-Flear, Asti 1996}) 13... Nxd5 14. c4
Nf4 15. Qe4 (15. Bxf4 exf4 16. Qf3 Nc6 17. Qxf4 Nd4 $11) 15... f5 16. Qf3 Nc6
17. Bxf4 exf4 18. Qd5+ (18. Qxf4 Nd4 {and White cannot hold the P.} 19. Qd2 Re2
20. Qd1 Rxc2) 18... Qxd5 19. cxd5 Nd4 20. c4 h6 21. Nf3 Nxf3+ 22. gxf3 Re2 $11)
11... Bb4 12. Nxe5 Bxc3 13. bxc3 (13. dxc3 Qxd5 14. Bf4 Nc6 15. Rfe1 Nxe5 16.
Bxe5 Nd7 {with an annoying pin.}) 13... Qxd5 14. d4 Nc6 15. f4 (15. Bf4 Ne4 $44
) 15... Ne4 $44) 11. Nf3 (11. d3 cxd5 12. Qxe5 (12. Nf3 {- 11.Nf3}) 12... Nc6
13. Qe2 Bb4 14. Nf3 Rfe8 $44 {with enough compensation for the P, Black's
pieces are very active.}) (11. d6 $5 Bxd6 12. d3 c5 $13 {and Black has a
strong [+].}) (11. dxc6 $5 {is the other way for winning the P.} Nxc6 12. d3 (
12. Nf3 Nd4 13. Nxd4 exd4 14. Nb5 Bc5 $44) 12... Nd4 13. Qd1 {Black has a very
active position, but White has no weaknesses.} Rac8 14. Re1 Bb4 15. Bd2 Rfe8
16. Nge4 $14) 11... cxd5 12. Nxe5 (12. d3 Nc6 13. Nxe5 Nxe5 14. Qxe5 Bd6 15.
Qd4 Rfe8 $44) 12... Qf5 13. d4 Rac8 14. Qd3 {White certainly wants to exchange
queens steering towards a little bit better _|_.} (14. Qb5 $5 Nc6 15. Nxd5 (15.
Qxb7 Nxd4 16. Qxe7 Rce8 17. Qxa7 Nxc2 $13) 15... Nxd5 16. Qxd5 Qxc2 $44) 14...
Qxd3 (14... Qh5 15. Bf4 $14) 15. Nxd3 Bd6 {It is not easy to show anything
real for the P.} 16. Nb5 {White has to improve his bad N's position.} (16. Bf4
Bxf4 17. Nxf4 Rfd8 18. Rfe1 Nc4 $14) 16... Bb8 17. c3 Nc4 {/\ a6} 18. a4 {
/\ Na3} (18. Bf4 Nxb2) 18... Rfe8 19. Re1 Rxe1+ 20. Nxe1 Na5 (20... a6 21. Na3
Bd6 22. Nac2 Re8 $14 {and Black still has some pressure for the P.}) 21. Rb1
Nb3 22. Nd3 a6 23. Na3 Bd6 24. Nc2 {The white pieces are not so bad anymore.}
Rc4 (24... Re8 25. Be3) 25. Bg5 {It is very important for White to get rid of
his bad B.} Ne4 26. Bf4 Rxa4 27. f3 $1 $16 {Black has won back the P, but lost
the |^.} (27. Bxd6 Nxd6 28. Re1 Kf8 $14) 27... Bxf4 28. fxe4 Bd6 29. exd5 (29.
e5 $1 {leads to a much better P structure for White, >< d5 becomes weak and
Black's pieces are badly placed.} Bf8 30. Ne3 Ra5 31. Nf4 $18) 29... Ra5 (29...
Kf8 30. Re1) 30. Ne3 Bf8 {White is still a healthy P up and Black's pieces
cannot work together.} 31. Ne5 (31. Rd1 $16) 31... Ra2 32. N3c4 $6 {This
allows Black to organize a counterplay.} (32. Re1 $16) 32... b5 $1 33. d6 $2 (
33. Nb6 Nd2 34. Re1 Rxb2 35. Nc8 {/\ d6 was better.}) 33... bxc4 34. d7 Be7 35.
Nc6 (35. Re1 Ra1 36. Rxa1 Nxa1 37. Nxc4 $44) 35... Kf8 36. Re1 Ra1 $1 37. Rxa1
Nxa1 38. Kf2 Nb3 39. Ke3 Nc1 40. d8=Q+ Bxd8 41. Nxd8 {The _|_ is still better
for White, the black pawns on the << are vulnerable, White has a defended o^
and an active K.} Nd3 {[%mdl 4096] [#]} (41... Ke7 $2 42. Nc6+ Kd6 43. Na5 Kd5
44. Kd2 Nd3 45. Nxc4 $1 $18) 42. b4 (42. b3 $5 {was the other alternative.} Nb2
$1 (42... Ne1 43. bxc4 Nxg2+ 44. Ke4 Ke7 (44... a5 45. c5 a4 46. c6 f5+ $1 (
46... Ke7 47. Nxf7) 47. Kxf5 Ke7 48. Nb7 a3 49. c7 Kd7 50. Nd6 $16) 45. Nb7 h5
46. c5 Kd7 47. d5 h4 48. c6+ Kc7 49. c4 g5 50. c5 g4 51. Na5 $18) (42... Nf4
43. bxc4 $1 Nxg2+ {- 42...Ne1}) 43. b4 (43. bxc4 $2 Nxc4+ 44. Ke4 $1 (44. Kd3
Na5 $1 45. c4 Ke8) 44... Ke7 (44... a5 45. Kd3) 45. Nb7 Nd6+ $1 $17 (45... a5
46. Kd5 $1)) 43... Na4 44. Kd2 Nb6 $14) 42... Ke7 43. Nc6+ Kd6 44. Nb8 g5 {
Black has to create some counterplay on the >>.} 45. Nxa6 Nf4 46. g3 (46. g4 {
weakens the P structure unnecessarily.} h5 $132) (46. Nc5 Nd5+ $1 (46... Nxg2+
47. Ke4 Nf4 48. b5 h5 49. b6 Ne2 50. d5 Nxc3+ 51. Kd4 Nxd5 52. Ne4+ $18) 47.
Kd2 f5 48. Nb7+ (48. g3 {- 46.g3}) 48... Kc7 $1 (48... Kc6 $2 49. Nd8+ $1 Kb5
50. Nf7 $16) 49. Na5 Nb6 $14) 46... Nd5+ 47. Kd2 f5 48. Nc5 h6 49. Na4 Kc6 50.
Nb2 Kb5 51. Nd1 Nf6 52. Nf2 Kc6 53. Ke2 Kb5 54. Kf3 Nd5 55. Nd1 Ka4 $5 (55...
Kc6 56. g4 $5 (56. Ne3 Nxc3 57. Nxf5 Na2) 56... f4 57. Ke4 Kd6 58. b5 (58. Kf5
$4 Ne3+) 58... Ke6) 56. Ne3 (56. g4 $1 f4 (56... fxg4+ 57. Ke4 Nf4 58. Kf5) 57.
Ke4 Nf6+ $1 58. Kf5 Nd7 $1 (58... Nd5 59. Ke5) 59. Kg6 Kb3 $1 $132) 56... Nxc3
$11 {Now White has no real practical chances anymore.} 57. Nxc4 Nb5 58. Ke3
Kxb4 59. Kd3 Nc3 60. Ne5 Ne4 61. Nc6+ Kb5 62. Ne7 Nd6 63. Ng8 Nf7 64. Kc3 f4
65. gxf4 gxf4 66. Nf6 f3 67. Ne4 Ng5 68. Nf2 Kc6 69. Kd3 Kd5 70. Nd1 f2 71.
Nxf2 Nf3 72. Ng4 Nxd4 1/2-1/2

[Event "ESP-chT Honor Gp1 49th"]
[Site "Merida"]
[Date "2005.08.28"]
[Round "5"]
[White "Karjakin, Sergey"]
[Black "Socko, Bartosz"]
[Result "1/2-1/2"]
[ECO "C58"]
[WhiteElo "2645"]
[BlackElo "2615"]
[Annotator "Lukacs,P"]
[PlyCount "73"]
[EventDate "2005.08.24"]
[EventType "team"]
[EventRounds "5"]
[EventCountry "ESP"]
[SourceTitle "CBM 109"]
[Source "ChessBase"]
[SourceDate "2005.11.14"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.14"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8.
Qf3 $5 (8. Be2 {is still the main line with a complicated struggle.}) 8... Qc7
(8... h6 $143 {helps only for White.} 9. Ne4 Nd5 10. Be2 (10. Nbc3 cxb5 11.
Nxd5 Bb7 12. Ne3 Qd7 13. O-O Nc6 14. d3 O-O-O $44 {Van der Wiel-Spassky,
Reggio Emilia 1986}) 10... Be7 11. Qg3 $16 {Taruffi-Rajna, Espana 1974}) (8...
cxb5 $143 $2 {This sacrifice is not sound.} 9. Qxa8 Bc5 (9... Nd5 {
(Holdzhayev-Nezhmetdinov, SU 1955)} 10. Nc3 Nc7 11. Qxa7 Nc6 12. Qb6 Nd4 13.
O-O $1 $16 {and white K has reached safety.}) (9... h6 10. Ne4 Nd5 {
(Estimo-Balinas, Manila 1968)} 11. Nd6+ $16 {Gligoric}) (9... Qd7 10. Qf3 (10.
b4 $5 {(Durao-Prins, Malaga 1954)} Bxb4 11. a4 $16 {Gligoric}) 10... Bb7 11.
Qe2 Be7 (11... Bxg2 12. Rg1 Bc6 13. d3 Qf5 14. Bd2 Nb7 15. Nc3 Be7 16. O-O-O
$16 {and this time the white K has found his safety on the <<, A.
Zaitsev-Khokhlovkin, SU 1954.}) 12. d3 (12. O-O Nc6 13. c3 h6 14. Nf3 $16 {
Vasilev-Morozov, SU 1951}) 12... Nc6 (12... Bxg2 13. Rg1 Bb7 14. Ne4 Qh3 15.
Nbd2 Qxh2 16. Nf3 Qh5 {(Sherbakov-Neishtadt, SU 1954)} 17. Bg5 $1 $16 {Gligoric
}) 13. c3 O-O 14. O-O Nd5 {(Toran-Cortlever, Beverwijk 1953)} 15. Nh3 $1 {
and Black cannot show anything real for the sacrificed exchange and P.} Re8 16.
Nd2 f5 17. Nb3 $16 {Estrin}) 10. O-O O-O 11. b4 $1 Bxb4 12. Nc3 Bc5 13. Qf3 a6
14. Nce4 Bb7 15. Qf5 $16 {Zukharov-Kopaev, Lvov 1951}) (8... Be7 {Black is
ready to sacrifice the second P in order to get a big lead of development in
an opened position.} 9. Bxc6+ (9. Bd3 O-O {(Kurganov-Kostiuchenko, SU 1961)}
10. Nc3 h6 11. Nge4 Nd5 12. Ng3 g6 $44 {/\ f5 Van der Wiel}) 9... Nxc6 10.
Qxc6+ Bd7 11. Qc4 $142 {at least gives some chance for the quick development.}
(11. Qf3 {White has already big problems with his development and this is not
the best.} O-O (11... h6 12. Ne4 Nd5 13. O-O O-O 14. d3 Bc6 15. Qe2 f5 $44 {
Gligoric}) (11... Rc8 12. Ne4 Nd5 13. a3 O-O 14. Nbc3 Nf4 15. Ne2 Bc6 16. g4
Ne6 17. d3 Ba8 18. c3 Nc5 $44 {Gavrilov-Poletaev, corr 1957}) 12. Nc3 {-
Macieja-Sulskis, Tripoli 2004 CBM 102}) 11... O-O 12. Nc3 Bf5 (12... Rc8 13.
Qe2 h6 14. Nf3 e4 15. Ne5 Bf5 $44 {and the e5 N has to leave soon,
Sakharov-Bakhmatov, SU 1960.} (15... Be6 16. Nxe4 (16. b3 $2 Rxc3 $1 17. dxc3
Qa5 $19 {Cominato Neto-Rocha, Itau Mercosul Cup 2002}) 16... Rxc2 17. O-O $14))
(12... Nh5 13. Nf3 Rc8 $44 {Liegl-P.Heilemann, corr 1954}) 13. d3 Rc8 14. Qb5
Rc5 15. Qb3 h6 16. Nge4 Nxe4 17. Nxe4 Be6 $44 {Donovan-Kauffman, USA 1954}) (
8... Rb8 $5 {looks logical, Black gets a lot of extra tempi if White accepts
the second P sac.} 9. Bd3 {The B hinders the normal development here.} (9.
Bxc6+ Nxc6 {The ^^ is important in an opened position like that.} 10. Qxc6+ Nd7
$1 ({In case of} 10... Bd7 11. Qc4 $1 {ruins the harmony between the black
pieces.} Qe7 12. Nc3 Rb4 13. Qc7 $16 {Jakab-B.Lengyel, Budapest 2002}) 11. d3
Be7 $44 {Ziherl-Krzisnik, YUG 1956}) 9... Be7 {looks simple and good, the N on
g5 can easily be attacked later.} (9... h6 {again helps only for White to
consolidate his position.} 10. Ne4 Nd5 (10... Nxe4 11. Bxe4 Bd6 12. Bxc6+ Nxc6
13. Qxc6+ Kf8 {Sad, but true.} 14. b3 Bb7 15. Qxd6+ Qxd6 16. Ba3 $16 {K.
Honfi-Georgescu, Bucharest 1962}) 11. b3 $1 {This is one of the main threats,
the a5 N is half-dead and the B will come out quickly.} (11. Ng3 g6 12. O-O Bg7
(12... h5 $5 {Gligoric}) 13. Nc3 O-O 14. Be2 Rb4 15. Nxd5 cxd5 16. Qa3 Nc6 17.
d3 h5 $15 {Estrin-Ragozin, SU 1955}) 11... g6 12. Qg3 Nf4 (12... Bg7 13. Bb2 (
13. Ba3 $2 Nb4 $15 {Van der Wiel-Torre, Sochi 1980}) 13... Nf4 {- 12...Nf4})
13. Bb2 Bg7 14. Ba3 $1 {Now Black has problems with 0-0.} Nb7 {(Van der
Wiel-Timman, NED-ch 1981)} 15. Ba6 c5 16. f3 $1 $14 {Van der Wiel}) 10. O-O (
10. Nc3 O-O 11. O-O {- 10.0-0}) 10... O-O 11. Nc3 (11. Ne4 {(A.Levin-Till, USA
1999 )} Nd5 $44 {/\ f5}) 11... h6 (11... c5 12. Re1 $14 {Sorbe-Rainfray,
France 1998}) 12. Nh3 (12. Nge4 Nd5 $44 {Parkin-Upton, Scotland (ch) 1997})
12... Bg4 13. Qg3 Qd7 14. Be2 Bxe2 15. Nxe2 Bd6 16. d3 e4 17. Nef4 $44 {
Sakharov-Voronov, SU 1971}) 9. Bd3 $5 (9. Be2 Bd6 10. Nc3 O-O 11. d3 Rb8 12.
Nge4 Nxe4 13. Nxe4 Be7 {and f7-f5 will come.} 14. Ng3 f5 15. O-O Be6 $44 {
[+] Bird/Burn-Pillsbury/Schiffers, Nьrnberg 1896}) 9... h6 {Better now than
later.} (9... Bd6 10. Nc3 Bg4 11. Nb5 {White wants to liquidate towards a
favourable _|_.} Bxf3 12. Nxc7+ Bxc7 13. gxf3 Nd5 14. h4 h6 15. Nh3 O-O 16. b3
$14 {Van der Wiel-Beliavsky Baden 1980}) (9... Bg4 10. Qg3 h5 {This plan
ignores the development of pieces.} 11. Nc3 Nb7 12. f3 h4 13. Qf2 Bd7 14. Bc4
Nd6 15. Bb3 $16 {Ufimtsev-Borisenko, SU 1953}) (9... Be7 10. O-O (10. Nc3 O-O
11. Bf5 h6 (11... Bb7 12. b4 Bxb4 13. Nxh7 Nxh7 14. Bxh7+ Kxh7 15. Qe4+ $14)
12. Bxc8 Raxc8 13. Nge4 Nxe4 14. Qxe4 f5 15. Qe2 Bd6 16. d3 $16 {
Paoli-Gligoric, Venice 1949}) 10... O-O 11. Bf5 {Now the big question is
whether White can hold the vital e4 square.} (11. b4 $5 Nb7 12. Bb2 h6 13. Ne4
Nd5 14. Qg3 Nf4 15. Re1 Kh8 $14 {Bianchi-Rubinetti, Moron 1981}) 11... Bb7 (
11... Ba6 12. d3 g6 (12... Bd6 13. b4 $1 {Black's main problem is the
misplaced N on a5 in this variation.} Bxb4 14. Nxh7 $1 $16 {K.Honfi-Petar
Genov, SU 1961}) 13. Bh3 c5 14. Nc3 Nc6 15. Nge4 Nxe4 16. Nd5 $1 {This is a
witty intermediate move!} Qd6 17. Qxe4 Bd8 18. Bh6 Re8 19. Ne3 $16 {K.
Honfi-Geller, Oberhausen 1961}) 12. d3 c5 13. Qh3 g6 14. Be4 $14 {
Kamyshov-Sopkov, SU 1949}) 10. Ne4 Nd5 11. O-O (11. Nbc3 Nb4 12. Ng3 Nxd3+ 13.
Qxd3 {Black has got the ^^, but White soon will finish his development.} Nb7
14. O-O Bc5 15. Nce4 Be7 16. Qf3 $14 {Van der Wiel-Gligoric, Baden 1980}) (11.
Nec3 Nf4 $36) 11... Be7 (11... Nf4 $5 {deserves attention.} 12. Ng3 g6 (12...
Nxd3 13. Qxd3 h5 $5) 13. Re1 Nxd3 (13... Be6 14. b4 Nb7 15. Be4 Nd5 16. Nc3
O-O-O 17. b5 $16 {and suddenly it is White, who attacks the enemy K first,
Sherbakov-Yudovich, SU 1955.}) 14. Qxd3 Bg7 15. Nc3 O-O 16. Qf3 Bb7 17. d3 c5
18. Nd5 Qd8 19. c4 Nc6 20. Be3 Nd4 21. Bxd4 Bxd5 22. cxd5 cxd4 $44) 12. Ng3 g6
(12... O-O $6 13. Bf5 $1) 13. a3 {[#]} (13. Re1 h5) 13... h5 $1 (13... f5 {
can be met by a positional piece sacrifice destoying Black's mighty P chain.}
14. b4 $5 (14. Nxf5 $5 gxf5 15. Bxf5 $13) (14. Nc3 e4 (14... Nf4 15. b4 $16)
15. Ngxe4 fxe4 16. Bxe4 $40) 14... Nb7 15. Bb2 a5 (15... O-O 16. Bc4) 16. Bc4
axb4 17. axb4 Rxa1 18. Bxa1 Nxb4 19. Bb3 $16) (13... O-O {allows White to
finish his development.} 14. Nc3 Be6 15. b4 Nb7 16. Bb2 $16) 14. b4 (14. Nc3 $5
Nf4 $44) (14. h3 f5 $44) 14... Bg4 $1 15. Qe4 f5 16. Qe1 h4 17. Bb2 Bf6 18. Ne2
h3 $1 {Black has won a lot of tempi driving back White's pieces. Now he
continues his -> on the >>.} 19. g3 O-O 20. Nec3 (20. f3 e4 $1 21. Bxf6 exd3
22. Bd4 Rae8 23. fxg4 Rxe2 24. Qd1 f4 $1 $40) 20... Nb7 ({The intermediate move
} 20... e4 $5 {deserved attention:} 21. Nxd5 cxd5 22. Bxf6 Rxf6 $13) 21. Be2
Bxe2 22. Qxe2 Rae8 {White has still the extra P, but he has problems with his
development and the [+] is in Black's hands.} (22... e4 $44) 23. Qc4 Rf7 24. d3
(24. Nxd5 cxd5 25. Qxd5 Qxc2) 24... Nd6 (24... Qd7 $13) 25. Qb3 (25. Nxd5 cxd5
26. Qxd5 Qxc2) 25... Nb6 (25... Qb7 26. Na4) 26. Nd2 {Finally White has
finished his development, better later than never.} Qb7 27. f3 Bg5 {The black
pieces are still active, and his [+] is strong.} 28. Nc4 (28. f4 exf4 29. Nf3
c5 $1 30. bxc5 fxg3 31. hxg3 Re3 $1 32. cxb6 Rxf3 $13) (28. Rad1 Nb5 29. Nxb5
cxb5 30. Rfe1 Nd5 $132) 28... Nbxc4 29. dxc4 Qa6 30. Na4 (30. f4 Bf6) 30...
Qxc4 {Black gets back the P, White has to fight for equality.} 31. Qd3 e4 (
31... Qxd3 $1 32. cxd3 Be3+ 33. Kh1 f4 $15) 32. Qxd6 {Now suddenly the black K
is not safe.} Qe2 (32... Be3+ 33. Kh1 Qe2 34. Qxg6+ $11) 33. Qxg6+ {White has
solved his problems.} Kf8 34. Qd6+ Kg8 35. Rf2 (35. Qg6+ {repetition of moves.}
) 35... Be3 36. Qg6+ Kf8 37. Qd6+ {and draw by repetition of moves.} (37. Qh6+
$5 {was not so clear after} Ke7 38. Qh4+ Kd7 $1 (38... Kf8 39. Raf1) 39. Raf1 (
39. Nc5+ Kc8 40. Raf1 Bxf2+ 41. Rxf2 Qd1+ 42. Rf1 Qxc2) 39... Bxf2+ 40. Rxf2
Qd1+ 41. Rf1 Qxc2 $13) 1/2-1/2

[Event "FIDE-Wch k.o."]
[Site "Tripoli"]
[Date "2004.06.20"]
[Round "1.2"]
[White "Macieja, Bartlomiej"]
[Black "Sulskis, Sarunas"]
[Result "1/2-1/2"]
[ECO "C58"]
[WhiteElo "2633"]
[BlackElo "2570"]
[Annotator "Lukacs,P"]
[PlyCount "105"]
[EventDate "2004.06.19"]
[EventType "k.o."]
[EventRounds "7"]
[EventCountry "LBY"]
[SourceTitle "CBM 102"]
[Source "ChessBase"]
[SourceDate "2004.09.23"]
[SourceVersion "1"]
[SourceVersionDate "2004.09.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8.
Qf3 {This old variation is very rare in nowaday's tournament practice.} (8. Be2
{is still the main line with a complicated struggle.} h6 9. Nh3 Be7 (9... Bd6
10. d3 O-O 11. Nc3 Nd5 12. Bd2 (12. O-O Rb8 {- Short-Wedberg, Sigeman Co Malmo
2002 CBM 90}) 12... Rb8 {- Ivanchuk-Beliavsky, Dortmund 1998 CBM 66}) (9... Bc5
$5) 10. d3 O-O {- Sermek-Romanishin, Solin/Spilt 2002 CBM 93}) 8... Be7 {
Black is ready to sacrifice the second P in order to get a big lead of
development in an opened position.} (8... cxb5 $143 $2 {This sacrifice is not
sound.} 9. Qxa8 Bc5 (9... Nd5 {(Holdzhayev-Nezhmetdinov, SU 1955)} 10. Nc3 Nc7
11. Qxa7 Nc6 12. Qb6 Nd4 13. O-O $1 $16 {and white K has reached safety.}) (
9... h6 10. Ne4 Nd5 {(Estimo-Balinas, Manila 1968)} 11. Nd6+ $16 {Gligoric}) (
9... Qd7 10. Qf3 (10. b4 $5 {(Durao-Prins, Malaga 1954)} Bxb4 11. a4 $16 {
Gligoric}) 10... Bb7 11. Qe2 Be7 (11... Bxg2 12. Rg1 Bc6 13. d3 Qf5 14. Bd2 Nb7
15. Nc3 Be7 16. O-O-O $16 {and this time the white K has found his safety on
the <<, A.Zaitsev-Khokhlovkin, SU 1954.}) 12. d3 (12. O-O Nc6 13. c3 h6 14. Nf3
$16 {Vasilev-Morozov, SU 1951}) 12... Nc6 (12... Bxg2 13. Rg1 Bb7 14. Ne4 Qh3
15. Nbd2 Qxh2 16. Nf3 Qh5 {(Shcherbakov-Neishtadt, SU 1954)} 17. Bg5 $1 $16 {
Gligoric}) 13. c3 O-O 14. O-O Nd5 {(Toran-Cortlever, Beverwijk 1953)} 15. Nh3
$1 {and Black cannot show anything real for the sacrificed exchange and P.} Re8
16. Nd2 f5 17. Nb3 $16 {Estrin}) 10. O-O O-O 11. b4 $1 Bxb4 12. Nc3 Bc5 13. Qf3
a6 14. Nce4 Bb7 15. Qf5 $16 {Zukharov-Kopayev, Lvov 1951}) (8... h6 $143 {
helps only for White.} 9. Ne4 Nd5 10. Be2 (10. Nbc3 cxb5 11. Nxd5 Bb7 12. Ne3
Qd7 13. O-O Nc6 14. d3 O-O-O $44 {Van der Wiel-Spassky, Reggio Emilia 1986})
10... Be7 11. Qg3 $16 {Taruffi-Rajna, Espana 1974}) (8... Qc7 {As we see it
later there is no need to defend the c6 P.} 9. Bd3 Bd6 (9... h6 10. Ne4 Nd5 11.
O-O (11. Nbc3 Nb4 12. Ng3 Nxd3+ 13. Qxd3 {Black has got the ^^, but White soon
will finish his development.} Nb7 14. O-O Bc5 15. Nce4 Be7 16. Qf3 $14 {
Van der Wiel-Gligoric, Baden 1980}) 11... Nf4 12. Ng3 g6 13. Re1 Be6 14. b4 Nb7
15. Be4 Nd5 16. Nc3 O-O-O 17. b5 $16 {and suddenly it is White, who attacks
the enemy K first, Sherbakov-Yudovic, SU 1955.}) (9... Bg4 10. Qg3 h5 {This
plan ignores the development of pieces.} 11. Nc3 Nb7 12. f3 h4 13. Qf2 Bd7 14.
Bc4 Nd6 15. Bb3 $16 {Ufimtsev-Borisenko, SU 1953}) (9... Be7 10. O-O (10. Nc3 {
Paoli-Gligoric, Venice 1949}) 10... O-O 11. Bf5 {Now the big question is
whether White can hold the vital e4 square.} (11. b4 $5 Nb7 12. Bb2 h6 13. Ne4
Nd5 14. Qg3 Nf4 15. Re1 Kh8 $14 {Bianchi-Rubinetti, Moron 1981}) 11... Bb7 (
11... Ba6 12. d3 g6 (12... Bd6 13. b4 $1 {Black's main problem is the
misplaced N on a5 in this variation.} Bxb4 14. Nxh7 $1 $16 {K.Honfi-Petar
Genov SU 1961}) 13. Bh3 c5 14. Nc3 Nc6 15. Nge4 Nxe4 16. Nd5 $1 {This is a
witty intermediate move!} Qd6 17. Qxe4 Bd8 18. Bh6 Re8 19. Ne3 $16 {K.
Honfi-Geller, Oberhausen 1961}) 12. d3 c5 13. Qh3 g6 14. Be4 $14 {
Kamyshov-Sopkov, SU 1949}) 10. Nc3 Bg4 11. Nb5 {White wants to liquidate
towards a favourable _|_.} Bxf3 12. Nxc7+ Bxc7 13. gxf3 Nd5 14. h4 h6 15. Nh3
O-O 16. b3 $14 {Van der Wiel-Beliavsky Baden 1980}) (8... Rb8 $5 {looks
logical, Black gets a lot of extra tempi if White accepts the second P sac.} 9.
Bd3 {The B hinders the normal development here.} (9. Bxc6+ Nxc6 {The ^^ is
important in an opened position like that.} 10. Qxc6+ Nd7 $1 ({In case of} 
10... Bd7 11. Qc4 $1 {ruins the harmony between the black pieces.} Qe7 12. Nc3
Rb4 13. Qc7 $16 {Jakab-B.Lengyel, Budapest 2002}) 11. d3 Be7 $44 {
Ziherl-Krzisnik, YUG 1956}) 9... Be7 {looks simple and good, the N on g5 can
easily be attacked later.} (9... h6 {again helps only for White to consolidate
his position.} 10. Ne4 Nd5 (10... Nxe4 11. Bxe4 Bd6 12. Bxc6+ Nxc6 13. Qxc6+
Kf8 {Sad, but true.} 14. b3 Bb7 15. Qxd6+ Qxd6 16. Ba3 $16 {K.Honfi-Georgescu,
Bucuresti 1962}) 11. b3 $1 {This is one of the main threats, the a5 N is
half-dead and the B will come out quickly.} (11. Ng3 g6 12. O-O Bg7 (12... h5
$5 {Gligoric}) 13. Nc3 O-O 14. Be2 Rb4 15. Nxd5 cxd5 16. Qa3 Nc6 17. d3 h5 $15
{Estrin-Ragozin, SU 1955}) 11... g6 12. Qg3 Nf4 (12... Bg7 13. Bb2 (13. Ba3 $2
Nb4 $15 {Van der Wiel-Torre, Sochi 1980}) 13... Nf4 {- 12...Nf4}) 13. Bb2 Bg7
14. Ba3 $1 {Now Black has problems with 0-0.} Nb7 {(Van der Wiel-Timman,
NED-ch 1981)} 15. Ba6 c5 16. f3 $1 $14 {Van der Wiel}) 10. O-O (10. Nc3 O-O 11.
O-O {- 10.0-0}) 10... O-O 11. Nc3 (11. Ne4 {(A.Levin-Till, USA 1999 )} Nd5 $44
{/\ f5}) 11... h6 (11... c5 12. Re1 $14 {Sorbe-Rainfray, France 1998}) 12. Nh3
(12. Nge4 Nd5 $44 {Parkin-Upton, Scotland(ch) 1997}) 12... Bg4 13. Qg3 Qd7 14.
Be2 Bxe2 15. Nxe2 Bd6 16. d3 e4 17. Nef4 $44 {Sakharov-Voronov, SU 1971}) 9.
Bxc6+ (9. Bd3 O-O {(Kurganov-Kostiuchenko, SU 1961)} 10. Nc3 h6 11. Nge4 Nd5
12. Ng3 g6 $44 {/\ f5 Van der Wiel}) 9... Nxc6 10. Qxc6+ Bd7 11. Qf3 {White
has already big problems with his development and this is not the best.} (11.
Qc4 $142 {at least gives some chance for the quick development.} O-O 12. Nc3
Bf5 (12... Rc8 13. Qe2 h6 14. Nf3 e4 15. Ne5 Bf5 $44 {and the e5 N has to
leave soon, Sakharov-Bakhmatov, SU 1960.} (15... Be6 16. Nxe4 (16. b3 $2 Rxc3
$1 17. dxc3 Qa5 $19 {Cominato Neto-Rocha, Itau Mercosul Cup 2002}) 16... Rxc2
17. O-O $14)) (12... Nh5 13. Nf3 Rc8 $44 {Liegl-P.Heilemann, corr 1954}) 13. d3
Rc8 14. Qb5 Rc5 15. Qb3 h6 16. Nge4 Nxe4 17. Nxe4 Be6 $44 {Donovan-Kauffman,
USA 1954}) 11... O-O (11... h6 12. Ne4 Nd5 13. O-O O-O 14. d3 Bc6 15. Qe2 f5
$44 {Gligoric}) (11... Rc8 12. Ne4 Nd5 13. a3 O-O 14. Nbc3 Nf4 15. Ne2 Bc6 16.
g4 Ne6 17. d3 Ba8 18. c3 Nc5 $44 {Gavrilov-Poletaev, corr 1957}) 12. Nc3 Rc8 (
12... Ng4 $5 13. Nh3 f5 14. d3 Rc8 15. O-O (15. Qd5+ Kh8 16. O-O Qc7 $44) 15...
Bc6 16. Qe2 $14) 13. d3 Bc6 14. Qh3 h6 15. Nge4 Bxe4 16. dxe4 (16. Nxe4 Nxe4
17. dxe4 Rxc2 {gives also a very active position for Black fully compensating
the P.} 18. O-O Qd4 19. Qf5 Bc5 20. Be3 Qxb2 21. Bxc5 Rxc5 $11) 16... Bb4 $44
17. Qe3 (17. O-O Bxc3 18. bxc3 Nxe4 $13 {and White's << is in ruins.}) 17...
Qd4 18. Bd2 (18. O-O {acknowledges that White has nothing.} Bxc3 19. bxc3 Qxc3
20. Qxc3 Rxc3 21. f3 (21. Bb2 Rxc2 22. Bxe5 Nxe4) 21... Rxc2 $11) 18... Bxc3
19. Bxc3 Qxe3+ 20. fxe3 Nxe4 21. Bxe5 Rxc2 $44 {White is still a P up in the
_|_, but the penetration on the 2-nd rank is painful and the N is excellent on
e4.} 22. O-O Rfc8 23. Bd4 (23. Rf4 Rc1+ 24. Rxc1 Rxc1+ 25. Rf1 Rc2 26. h4 f6
27. Bd4 a6 $44) 23... R8c6 $1 24. g3 (24. Rf4 Rg6 25. g3 Ng5 $44) 24... a6 $44
25. a4 h5 $1 {/\ h4 creating a new target on the >>.} 26. b4 h4 27. b5 (27. Rf4
Ng5 28. b5 Nh3+ 29. Kf1 Nxf4 30. bxc6 Ne6 $11) 27... hxg3 28. h4 Nf2 29. Kg2
Ne4+ 30. Kg1 Nf2 31. Kg2 Ne4+ $11 32. Kf3 $5 {White wants more than a draw
with perpetual checks.} Nd2+ 33. Kxg3 Rg6+ 34. Kf4 Nxf1 35. Rxf1 {[%mdl 4096]}
axb5 (35... Rc4 36. Rb1 $1 Rb6 37. Ke5 Rb7 (37... Re6+ $2 38. Kd5 Rxa4 39. b6
$16) 38. Kd5 axb5 (38... Rxa4 $2 39. b6 $16) 39. axb5 {- 35..axb5}) 36. axb5
Rc4 (36... Rh2 $2 37. Rb1 (37. b6 Rxh4+ 38. Kf3 Rxd4 39. exd4 Rxb6 $11) 37...
Rxh4+ 38. Kf3 Rh3+ 39. Ke2 $16) 37. Rb1 Rb6 $1 {Now Black can hold the _|_
easily firmly blockading the dangerous o^.} (37... Rc7 {is not so easy.} 38. b6
Rb7 39. Ke4 Rc6 $1 (39... Kf8 40. Kd5 Ke7 41. Kc5 Kd7 42. Kb5 Re6 43. Ka6 Kc8
44. Bxg7 f6 45. Bf8 $16) 40. Kd5 Rc8 41. h5 Rd7+ 42. Ke5 Rb8 $1 (42... Re8+ 43.
Kf5 Rb7 44. Rg1 $16) (42... Rb7 43. Kd6 f6 44. Ra1 Kf7 45. Ra7 Rxa7 46. bxa7
$16) 43. Rg1 f6+ (43... Rxd4 44. exd4 Rxb6 45. d5 Kf8 46. Kd4 $1 $16) 44. Ke6
Rdb7 {/\ Rb6} 45. Rb1 Kf8 $11) 38. Ke5 Rb7 39. Kd5 Rc8 40. b6 Rd7+ 41. Ke4 f6
42. h5 Kf7 $11 43. Rb5 Ke6 44. Ra5 Rc6 45. Ra6 Rb7 46. Kd3 Kd6 47. Ke4 Ke6 48.
Kf4 Rd6 49. Ra8 Rbxb6 $1 {Now the draw is inevitable.} 50. Bxb6 Rxb6 51. Ra7
Rb5 52. Rxg7 Rxh5 53. Ke4 1/2-1/2

[Event "Groningen Harmonie"]
[Site "Groningen"]
[Date "2004.12.24"]
[Round "4"]
[White "Van der Wiel, John"]
[Black "Ernst, Sipke"]
[Result "1-0"]
[ECO "C58"]
[WhiteElo "2493"]
[BlackElo "2521"]
[Annotator "Lukacs,P"]
[PlyCount "45"]
[EventDate "2004.12.21"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "NED"]
[EventCategory "10"]
[SourceTitle "CBM 105"]
[Source "ChessBase"]
[SourceDate "2005.04.11"]
[SourceVersion "1"]
[SourceVersionDate "2005.04.11"]
[SourceQuality "1"]

{[%mdl 64]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7.
dxc6 bxc6 8. Qf3 (8. Be2 {is the main line with immense complications.}) 8...
Rb8 (8... h6 $143 {helps only for White.} 9. Ne4 Nd5 10. Be2 (10. Nbc3 cxb5 11.
Nxd5 Bb7 12. Ne3 Qd7 13. O-O Nc6 14. d3 O-O-O $44 {Van der Wiel-Spassky,
Reggio Emilia 1986}) 10... Be7 11. Qg3 $16 {Taruffi-Rajna, Espana 1974}) (8...
cxb5 $143 $2 {This sacrifice is not sound.} 9. Qxa8 Bc5 (9... Nd5 {
(Holdzhayev-Nezhmetdinov, SU 1955)} 10. Nc3 Nc7 11. Qxa7 Nc6 12. Qb6 Nd4 13.
O-O $1 $16 {and white K has reached safety.}) (9... h6 10. Ne4 Nd5 {
(Estimo-Balinas, Manila 1968)} 11. Nd6+ $16 {Gligoric}) (9... Qd7 10. Qf3 (10.
b4 $5 {(Durao-Prins, Malaga 1954)} Bxb4 11. a4 $16 {Gligoric}) 10... Bb7 11.
Qe2 Be7 (11... Bxg2 12. Rg1 Bc6 13. d3 Qf5 14. Bd2 Nb7 15. Nc3 Be7 16. O-O-O
$16 {and this time the white K has found his safety on the <<, A.
Zaitsev-Khokhlovkin, SU 1954.}) 12. d3 (12. O-O Nc6 13. c3 h6 14. Nf3 $16 {
Vasilev-Morozov, SU 1951}) 12... Nc6 (12... Bxg2 13. Rg1 Bb7 14. Ne4 Qh3 15.
Nbd2 Qxh2 16. Nf3 Qh5 {(Shcherbakov-Neishtadt, SU 1954)} 17. Bg5 $1 $16 {
Gligoric}) 13. c3 O-O 14. O-O Nd5 {(Toran-Cortlever, Beverwijk 1953)} 15. Nh3
$1 {and Black cannot show anything real for the sacrificed exchange and P.} Re8
16. Nd2 f5 17. Nb3 $16 {Estrin}) 10. O-O O-O 11. b4 $1 Bxb4 12. Nc3 Bc5 13. Qf3
a6 14. Nce4 Bb7 15. Qf5 $16 {Zukharov-Kopayev, Lvov 1951}) (8... Be7 {Black is
ready to sacrifice the second P in order to get a big lead of development in
an opened position.} 9. Bxc6+ (9. Bd3 O-O {(Kurganov-Kostiuchenko, SU 1961)}
10. Nc3 h6 11. Nge4 Nd5 12. Ng3 g6 $44 {/\ f5 Van der Wiel}) 9... Nxc6 10.
Qxc6+ Bd7 11. Qc4 $142 {at least gives some chance for the quick development.}
(11. Qf3 {White has already big problems with his development and this is not
the best.} O-O (11... h6 12. Ne4 Nd5 13. O-O O-O 14. d3 Bc6 15. Qe2 f5 $44 {
Gligoric}) (11... Rc8 12. Ne4 Nd5 13. a3 O-O 14. Nbc3 Nf4 15. Ne2 Bc6 16. g4
Ne6 17. d3 Ba8 18. c3 Nc5 $44 {Gavrilov-Poletaev, corr 1957}) 12. Nc3 Rc8 (
12... Ng4 $5 13. Nh3 f5 14. d3 Rc8 15. O-O (15. Qd5+ Kh8 16. O-O Qc7 $44) 15...
Bc6 16. Qe2 $14) 13. d3 Bc6 14. Qh3 h6 15. Nge4 Bxe4 16. dxe4 (16. Nxe4 Nxe4
17. dxe4 Rxc2 {gives also a very active position for Black fully compensating
the P.} 18. O-O Qd4 19. Qf5 Bc5 20. Be3 Qxb2 21. Bxc5 Rxc5 $11) 16... Bb4 $44
17. Qe3 (17. O-O Bxc3 18. bxc3 Nxe4 $13 {and White's << is in ruins.}) 17...
Qd4 18. Bd2 (18. O-O {acknowledges that White has nothing.} Bxc3 19. bxc3 Qxc3
20. Qxc3 Rxc3 21. f3 (21. Bb2 Rxc2 22. Bxe5 Nxe4) 21... Rxc2 $11) 18... Bxc3
19. Bxc3 Qxe3+ 20. fxe3 Nxe4 21. Bxe5 Rxc2 $44 {Macieja-Sulskis, Tripoli 2004
CBM 102. White is still a P up in the _|_, but the penetration on the 2-nd
rank is painful and the N is excellent on e4.}) 11... O-O 12. Nc3 Bf5 (12...
Rc8 13. Qe2 h6 14. Nf3 e4 15. Ne5 Bf5 $44 {and the e5 N has to leave soon,
Sakharov-Bakhmatov, SU 1960.} (15... Be6 16. Nxe4 (16. b3 $2 Rxc3 $1 17. dxc3
Qa5 $19 {Cominato Neto-Rocha, Itau Mercosul Cup 2002}) 16... Rxc2 17. O-O $14))
(12... Nh5 13. Nf3 Rc8 $44 {Liegl-P.Heilemann, corr 1954}) 13. d3 Rc8 14. Qb5
Rc5 15. Qb3 h6 16. Nge4 Nxe4 17. Nxe4 Be6 $44 {Donovan-Kauffman, USA 1954}) (
8... Qc7 {As we see it later there is no need to defend the c6 P.} 9. Bd3 Bd6 (
9... h6 10. Ne4 Nd5 11. O-O (11. Nbc3 Nb4 12. Ng3 Nxd3+ 13. Qxd3 {Black has
got the ^^, but White soon will finish his development.} Nb7 14. O-O Bc5 15.
Nce4 Be7 16. Qf3 $14 {Van der Wiel-Gligoric, Baden 1980}) 11... Nf4 12. Ng3 g6
13. Re1 Be6 14. b4 Nb7 15. Be4 Nd5 16. Nc3 O-O-O 17. b5 $16 {and suddenly it
is White, who attacks the enemy K first, Sherbakov-Yudovic, SU 1955.}) (9...
Bg4 10. Qg3 h5 {This plan ignores the development of pieces.} 11. Nc3 Nb7 12.
f3 h4 13. Qf2 Bd7 14. Bc4 Nd6 15. Bb3 $16 {Ufimtsev-Borisenko, SU 1953}) (9...
Be7 10. O-O (10. Nc3 {Paoli-Gligoric, Venice 1949}) 10... O-O 11. Bf5 {Now the
big question is whether White can hold the vital e4 square.} (11. b4 $5 Nb7 12.
Bb2 h6 13. Ne4 Nd5 14. Qg3 Nf4 15. Re1 Kh8 $14 {Bianchi-Rubinetti, Moron 1981})
11... Bb7 (11... Ba6 12. d3 g6 (12... Bd6 13. b4 $1 {Black's main problem is
the misplaced N on a5 in this variation.} Bxb4 14. Nxh7 $1 $16 {K.Honfi-Petar
Genov SU 1961}) 13. Bh3 c5 14. Nc3 Nc6 15. Nge4 Nxe4 16. Nd5 $1 {This is a
witty intermediate move!} Qd6 17. Qxe4 Bd8 18. Bh6 Re8 19. Ne3 $16 {K.
Honfi-Geller, Oberhausen 1961}) 12. d3 c5 13. Qh3 g6 14. Be4 $14 {
Kamyshov-Sopkov, SU 1949}) 10. Nc3 Bg4 11. Nb5 {White wants to liquidate
towards a favourable _|_.} Bxf3 12. Nxc7+ Bxc7 13. gxf3 Nd5 14. h4 h6 15. Nh3
O-O 16. b3 $14 {Van der Wiel-Beliavsky Baden 1980}) 9. Bd3 (9. Bxc6+ Nxc6 {
The ^^ is important in an opened position like that.} 10. Qxc6+ Nd7 $1 ({
In case of} 10... Bd7 11. Qc4 $1 {ruins the harmony between the black pieces.}
Qe7 12. Nc3 Rb4 13. Qc7 $16 {Jakab-B.Lengyel, Budapest 2002}) 11. d3 Be7 $44 {
Ziherl-Krzisnik, YUG 1956}) 9... h6 (9... Be7 {looks simple and good, the N on
g5 can easily be attacked later.} 10. O-O (10. Nc3 O-O 11. O-O {- 10.0-0})
10... O-O 11. Nc3 (11. Ne4 {(A.Levin-Till, USA 1999 )} Nd5 $44 {/\ f5}) 11...
h6 (11... c5 12. Re1 $14 {Sorbe-Rainfray, France 1998}) 12. Nh3 (12. Nge4 Nd5
$44 {Parkin-Upton, Scotland(ch) 1997}) 12... Bg4 13. Qg3 Qd7 14. Be2 Bxe2 15.
Nxe2 Bd6 16. d3 e4 17. Nef4 $44 {Sakharov-Voronov, SU 1971}) 10. Ne4 Nd5 (10...
Nxe4 11. Bxe4 Bd6 12. Bxc6+ Nxc6 13. Qxc6+ Kf8 {Sad, but true.} 14. b3 Bb7 15.
Qxd6+ Qxd6 16. Ba3 $16 {K.Honfi-Georgescu, Bucuresti 1962}) 11. b3 $1 {This is
one of the main threats, the a5 N is half-dead and the B will come out quickly.
} (11. Ng3 g6 12. O-O Bg7 (12... h5 $5 {Gligoric}) 13. Nc3 O-O 14. Be2 Rb4 15.
Nxd5 cxd5 16. Qa3 Nc6 17. d3 h5 $15 {Estrin-Ragozin, SU 1955}) 11... g6 (11...
Nf4 $6 12. Bb2 $1 (12. Bf1 {is already too passive.} f5 13. Nec3 Bb7 14. d3 c5
15. Qg3 Qf6 16. Bxf4 exf4 17. Qxf4 Bd6 $40 {Spiegel-Mari Arul, Goodricke op
1997}) 12... Qc7 (12... Nxd3+ 13. cxd3 $1 {and although White's P structure is
ruined, he will quickly finish the development.} (13. Qxd3 Qxd3 14. cxd3 f6)
13... Qd5 14. O-O f5 15. Qh5+ Qf7 16. Ng3 $16) 13. O-O f5 14. Ng3 e4 15. Bxe4
$1 {opening up the lines against the K in the middle.} fxe4 16. Qxe4+ $16) 12.
Qg3 Bg7 (12... Nf4 13. Bb2 Bg7 {- 12...Bg7}) 13. Bb2 (13. Ba3 $2 {runs into}
Nb4 14. Ke2 O-O 15. c3 Bg4+ 16. Kf1 Qxd3+ 17. Qxd3 Nxd3 18. Bxf8 Rxf8 $19 {
Van der Wiel-Torre, Sochi 1980}) 13... Nf4 {[#]} (13... Qc7 14. Ba3 Nb4 $5 (
14... Nb7 15. Nbc3 (15. Ba6 Bf5 16. f3 Bxe4 17. fxe4 Nf4 18. Bxb7 Rxb7 19. Qf3
$14 {Carlier-Condie, Lloyds Bank op 1985}) 15... Bf5 16. O-O $16) (14... Bf8
15. O-O Bxa3 16. Nxa3 O-O 17. Rfe1 Kg7 18. Nc4 Nxc4 19. Bxc4 Nf4 20. Qc3 f6 21.
d4 $16 {Narciso Dublan-Medina Garcia, Catalunya ESP-chT 1997}) 15. O-O O-O 16.
c3 Nxd3 17. Bd6 (17. Bxf8 Nf4 $1) 17... Qd8 18. Bxb8 f5 {with some
compensation for the sacrificed exchange.}) 14. Qxf4 $1 {[%mdl 512] This is a
very effective positional Q sacrifice.} (14. Ba3 {Now Black has problems with
0-0.} Nb7 15. Ba6 (15. Nbc3 f5 16. Ne2 Nxd3+ (16... g5 $6 17. Nxf4 exf4 18. Qf3
Qa5 19. Nd6+ Kd8 $1 $13 (19... Nxd6 $2 20. Qxc6+ (20. Bxd6 $16) 20... Kf7 21.
Bxd6 Re8+ 22. Kd1 Bxa1 23. Bc4+ Be6 {(Van der Wiel-Timman, NED-ch 1981)} 24.
Bxb8 $1 Bxc4 25. Qxc4+ Kg6 26. Qc6+ Kf7 27. Bd6 $18)) 17. cxd3 Kf7 $13) 15...
c5 16. f3 $1 $14 {Van der Wiel}) 14... exf4 15. Bxg7 Kd7 (15... f5 16. Bxh8
fxe4 17. Bxe4 Qe7 18. d3 $16) (15... Rf8 16. Nf6+ Ke7 17. O-O Qb6 18. Be4 Rd8
19. Nc3 Rxd2 20. Rae1 {and the K is very vulnerable in the middle.} Be6 21. Bd3
$16) 16. Bf6 Qe8 17. O-O {White has only two pieces for the Q, but Black's
position lacks any harmony.} Kc7 (17... Rf8 18. Nbc3 Nb7 19. Bc4 $18) 18. Re1
Bf5 (18... Rg8 19. Na3 Rb6 20. Bc3 $18) 19. Na3 Qe6 $2 {This is the last
mistake.} (19... Nb7 {was more persistant.} 20. Nc4 Bxe4 21. Bxe4 $16) 20. Bc3
$18 Qd5 (20... Nb7 21. Nf6 $18) 21. Nc4 Nxc4 22. bxc4 {and the material losses
are inevitable.} Qd8 (22... Qe6 23. Nc5 Qc8 24. Bxh8 Qxh8 25. Bxf5 gxf5 26.
Na6+ $18) 23. Ba5+ 1-0

[Event "Dortmund SuperGM 35th"]
[Site "Dortmund"]
[Date "2007.06.23"]
[Round "1"]
[White "Mamedyarov, Shakhriyar"]
[Black "Naiditsch, Arkadij"]
[Result "1-0"]
[ECO "C58"]
[WhiteElo "2757"]
[BlackElo "2654"]
[Annotator "Marin,M"]
[PlyCount "87"]
[EventDate "2007.06.23"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "GER"]
[EventCategory "20"]
[SourceTitle "CBM 119"]
[Source "ChessBase"]
[SourceDate "2007.08.01"]
[SourceVersion "1"]
[SourceVersionDate "2007.08.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ Bd7 7. Be2 $5 {
This move is as good as a novelty, since it has never been tested in games
between strong players.} (7. Qe2 {and}) (7. Bxd7+ {are considered to be the
main continuations.}) 7... Nxd5 8. d4 {White's intentions are clear: to
outplay his opponent in a completely symmetrical position, where the final
evaluation largely depends on the ability to place the pieces on favourable
squares.} Be7 9. Nf3 exd4 (9... e4 10. Ne5 {followed by c4 would leave White
with strong initiative in the centre. The e4-pawn would be more of a weakness
than a strength.}) 10. Qxd4 Nf6 {Solid, but slightly unambitious.} (10... Nb4
$5 {looks more active, but does not change the character of the position
compared to the game.} 11. Na3 O-O 12. O-O Nac6 13. Qf4 Be6 14. Bc4 Qd7 {
and Black is doing fine.}) 11. O-O Nc6 12. Qc4 O-O {A first critical moment.
White cannot claim to have obtained an advance in development, but his
prospects of developing his pieces are slightly better than his opponent's.
Black's main problem is that he will have to work a bit in order to find a
good square for the queen. At the same time, we should not forget that the
white queen, which has been developed early, is vulnerable and will offer
Black the opportunity to win time for his development by attacking it with the
minor pieces.} 13. Rd1 {Played in accordance with the previous comment.
However, the placement of this rook on d1 looks artificial. Re1 and Rd1 is the
normal setup, of course.} ({However, after} 13. Nc3 Be6 14. Qa4 Qd7 15. Bf4 Nb4
{it is difficult to claim an advantage for White. Maybe the whole opening
experiment is just harmless.}) 13... Qe8 $6 {Black "believes" his strong
opponent and starts a rather contorted plan.} ({The simpler} 13... Bd6 {
was better, for instance} 14. Nc3 Re8 15. Bg5 (15. Nb5 $6 Re4 $1) 15... h6 16.
Bh4 Qe7 17. Rd2 {(Aiming to "correct" the positions of rooks)} Be6 {and I see
no big problems for Black, although with so many pieces on board any result is
possible.}) 14. Nc3 Be6 15. Qf4 $14 Rc8 16. a3 a6 17. h3 {Both sides have
effected some useful moves, but the black queen's situation has not improved a
bit.} Bd6 18. Qh4 Ne7 (18... Qe7 19. Bg5 {would leave Black with chronic
kingside weaknesses.}) 19. Bd3 Bf5 (19... Nf5 20. Bxf5 Bxf5 {would allow White
improve the placement of his rook with} 21. Re1 Qd8 {and put unpleasant
pressure over the f6-knight with} 22. Bg5 $14) 20. Bg5 $1 Bxd3 21. Rxd3 {
White's advantage is obvious already. He has almost completed his development
and has cleared the way for his other rook to reach e1.} Ng6 22. Qd4 Nd7 23.
Re1 Nde5 24. Nxe5 Bxe5 25. Qd5 Qc6 26. Qxc6 bxc6 {Black could not find any
other solution to White's increasing pressure other than spoiling his
queenside structure.} 27. Na4 $16 {With a really unpleasant endgame for Black.}
f6 28. Be3 Rfd8 29. Red1 Rd6 30. b3 Rcd8 31. Nc5 Rxd3 32. Nxd3 Bc3 33. Kf1 Kf8
34. Ke2 Ke8 35. Nc5 Rxd1 36. Kxd1 a5 37. Ne6 Ne7 38. Nxg7+ Kf7 39. Nh5 Nd5 40.
Nf4 Bb2 41. Nxd5 cxd5 42. a4 c6 43. Ke2 Be5 44. Bb6 1-0

[Event "World op 48th"]
[Site "ICC INT"]
[Date "2020.08.09"]
[Round "8"]
[White "Jobava, Baadur"]
[Black "Postny, Evgeny"]
[Result "1/2-1/2"]
[ECO "C58"]
[WhiteElo "2603"]
[BlackElo "2600"]
[Annotator "Postny,E"]
[PlyCount "97"]
[EventDate "2020.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

{[%evp 0,97,30,16,41,31,42,43,43,8,19,-10,-5,-5,17,-92,-45,-45,-14,-14,30,-30,
-15,-49,23,7,7,7,14,11,21,21,44,44,46,28,62,43,43,56,74,74,72,61,105,93,103,
-44,15,15,64,31,113,94,139,118,139,92,109,96,102,91,90,81,88,81,-67,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} {This is the game
from penultimate round, with both of us having 5.5 out of 7 and fighting for
top places. The time control was 60 minutes plus 5 seconds per move.} 1. e4 e5
2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 {When playing Baadur, you can always count on an
interesting game.} d5 5. exd5 Na5 6. Bb5+ Bd7 {I've played this line a few
times already and I think, it is a decent alternative to the main move 7...c6.}
7. Be2 $6 {Not a principled move. The main challenge is 7.Qe2.} (7. Qe2 Be7 (
7... Bd6 8. Nc3 O-O 9. Bxd7 Qxd7 10. a3 Be7 11. O-O Nxd5 12. Qxe5 Nxc3 13. dxc3
$14 {1-0 (47) Nogal,J (2380)-Mehlhorn,W (2469) ICCF email 2012}) 8. Nc3 Bxb5 9.
Qxb5+ c6 10. dxc6 Nxc6 {Normally Black gets decent compensation for the pawn
thanks to advantage in development.} 11. Qxb7 (11. Nf3 O-O 12. d3 Nd4 13. Nxd4
exd4 14. Ne2 Rc8 $44 {1/2-1/2 (24) Short,N (2683)-Postny,E (2606) Kishinev 2017
}) 11... Nd4 12. O-O O-O 13. Nge4 Nxc2 14. Rb1 Qd3 15. Nxf6+ Bxf6 16. Qe4 Qxe4
17. Nxe4 Be7 18. b3 f5 19. Ng3 Nb4 $11 {1-0 (43) Vovk,A (2617)-Postny,E (2670)
Fagernes 2016}) 7... h6 (7... Nxd5 {is more simple, equalizing easily.} 8. d4
Be7 9. Nf3 exd4 10. Qxd4 Nf6 11. O-O Nc6 12. Qc4 O-O $11 {1-0 (44) Mamedyarov,
S (2757)-Naiditsch,A (2654) Dortmund 2007}) 8. Nf3 e4 9. Ne5 Nxd5 10. Nxd7 (10.
d3 exd3 11. Qxd3 (11. Bxd3 Be6 12. O-O Bd6 13. Re1 O-O $11) 11... Nb4 (11...
Be6 {is also okay.}) 12. Qxd7+ Qxd7 13. Nxd7 Nxc2+ 14. Kd2 Nxa1 15. Nxf8 N1b3+
$1 16. axb3 Nxb3+ 17. Kc3 Nxc1 18. Rxc1 Rxf8 {and this endgame should be
balanced.}) (10. O-O Be6 11. c3 Nf6 12. d4 exd3 13. Qa4+ (13. Nxd3 Nc6 $11)
13... c6 14. Nxd3 b5 $11) 10... Qxd7 {Black is currently better developed, but
the knight on a5 is misplaced and White is counting on his pair of bishops in
the long term.} 11. Bg4 $6 {I didn't expect that. Now 11...f5 is met by check
on h5, so I have to choose a square for my queen.} (11. Nc3 {was more natural.}
Nxc3 (11... Nf4 12. O-O O-O-O 13. Nxe4 Nxe2+ 14. Qxe2 $14) 12. dxc3 Qe6 (12...
Qxd1+ 13. Bxd1 {is the kind of endgame, that I wanted to avoid, as I think
that in the endgame pair of bishops might cause me troubles.}) 13. Qd4 Nc6 14.
Qc4 Qg6 15. Be3 O-O-O $11) 11... Qb5 $6 {I wanted to keep the c6 square for
the knight, but 11...Qc6 was actually more precise.} (11... Qc6 $1 12. d3 (12.
Nc3 Nxc3 13. dxc3 Rd8 14. Qe2 g6 $15) (12. O-O h5 13. Be2 O-O-O $15) 12... exd3
13. Qxd3 Nb4 14. Qe2+ Be7 15. c3 Nc2+ $1 {Now we will see some unusual tricks
and nice computer geometry.} 16. Qxc2 Qxg2 17. Qa4+ b5 $1 18. Qxb5+ c6 19. Bd7+
$1 Kxd7 20. Qf5+ Ke8 21. Rf1 Bg5 22. Bxg5 Qxg5 23. Qxg5 hxg5 {with a slight
edge for Black.}) 12. Nc3 Nxc3 13. dxc3 Bd6 (13... Rd8 14. Qe2 Qxe2+ 15. Bxe2
$14) 14. Qe2 {Now we see the drawback of 11...Qb5.} Qe5 {I wanted to keep the
queens on the board, as in the endgame the pair of bishops has good potential.}
(14... Qxe2+ 15. Bxe2 Nc6 16. Be3 O-O-O 17. O-O-O f5 {is objectively playable
for Black.}) 15. Be3 (15. f4 exf3 16. Qxe5+ Bxe5 17. Bxf3 O-O-O $11) 15... Nc6
$6 {I wanted to keep an option of castling to both sides, therefore at first I
bring the knight back into play.} (15... O-O 16. O-O-O f5 17. Bh3 b5 $13) 16.
O-O-O h5 $6 ({Again} 16... O-O {would be safer.}) 17. Bh3 f5 18. f4 $1 (18. f3
exf3 {will lead to the same position as in the game.}) 18... exf3 (18... Qe6
19. Qb5 {[%csl Rb7,Rf5]} O-O 20. g3 $1 (20. Qxb7 $2 Na5 21. Qd5 Qxd5 22. Rxd5
Nc4 {and Black will get the Pf4.}) 20... Nd8 21. Bf1 Kh7 22. Kb1 $14 {White's
powerful bishops is a serious factor in the position.}) 19. Qxf3 g6 20. Rhe1 {
Now I have a choice between two castlings, in both cases I might lose an
exchange, but the matters are far from clear.} O-O $1 {Difficult choice, but
surprisingly, this is the safest side available for my king.} (20... O-O-O 21.
Bg5 (21. g3 $14 {[%cal Gh3g2] I was also worried about that. When the
light-squared bishop will come to g2, my king will no longer feel safe.}) 21...
Qxh2 22. Re6 Rhg8 ({After} 22... Ne5 23. Qf1 Qg3 24. Bxd8 Rxd8 25. Kb1 {
the Re6 can not be trapped, so White should be better, even though his bishop
is stuck on h3.}) 23. Rxg6 $1 Rxg6 24. Qxf5+ Kb8 25. Bxd8 Qf4+ 26. Qxf4 Bxf4+
27. Kb1 $16) 21. Bh6 {This move is too tempting.} ({From a practical point of
view it would be better to play} 21. g3 $1 Rae8 22. Bg2 {[%csl Ge3,Gg2] and
the bishops power yields White a serious advantage.}) 21... Qxh2 {This is an
important pawn, because now White can't play g2-g3 without giving the pawn,
which means that the bishop on h3 can be stuck forever.} 22. Re6 {Double
threat on the Pg6 and Rexd6, followed by Bh6-f4, trapping the queen.} (22. Qd5+
Kh7 23. Bxf8 Rxf8 24. Qb5 Kh6 $1 (24... Nd8 25. Kb1 $14) 25. Qxb7 Qf4+ 26. Kb1
Qc4 $1 {[%csl Rb7][%cal Gf8b8]} 27. Qb3 Qxb3 28. cxb3 g5 29. Re6+ Kg7 30. g3
Rf6 {and in this endgame all three results are possible.}) (22. Bxf8 Qf4+ 23.
Rd2 Rxf8 $44 {[%csl Yh3]}) 22... Kh7 {The only move.} 23. Bg5 (23. Rexd6 $2
Kxh6) (23. Bxf8 Qf4+ 24. Qxf4 Bxf4+ 25. Kb1 Rxf8 26. Rd7+ Kh6 {I was hoping
for this kind of endgame. Black has a pawn for the exchange, but the white
bishop is in a ridiculous position. An engine evaluates this position as equal,
but I would clearly prefer to be on the black side here.}) 23... Ne5 (23...
Rad8 $5 {insisting on the exchange sacrifice.} 24. c4 (24. Bxd8 Nxd8 25. Ree1
Qf4+ 26. Qxf4 Bxf4+ 27. Kb1 Bd6 {and again we get the endgame, which I was
striving for, as already mentioned in one the lines above.}) 24... Rfe8 {
and here White has nothing more than a spectacular perpetual check after} 25.
Qxh5+ $1 gxh5 26. Bxf5+ Kg8 27. Rg6+ Kf7 28. Rf6+) 24. Qxb7 Nf7 (24... Rab8 25.
Qxa7 Ra8 26. Qb7 Nf7 27. Kb1 Rfb8 28. Qc6 Nxg5 29. Qd7+ Kh8 30. Rxg6 Qe5 31.
Rh6+ Kg8 32. Rg6+ Kh8 $11) 25. Be7 Bxe7 26. Rxe7 Qf4+ 27. Kb1 Rad8 28. Rc1 Kh6
{At this stage both of us were short on time.} 29. Rxc7 (29. Qxc7 $2 Qxc7 30.
Rxc7 Ng5 {and in the forthcoming race Black's pawns should be faster.}) 29...
Rfe8 {Threatening 30...Qxc1!} (29... Ng5 {was a good alternative.} 30. Rc6 (30.
Qxa7 $4 Ra8 31. Qb7 Rfb8 32. Qc6 Ne4 $19) 30... Rfe8 $44) 30. b3 Ng5 (30... Rb8
31. Qc6 Nd6 32. Qd7 Nb5 33. Rc6 Red8 34. Qf7 Rd6 35. Rc5 Ra6 36. Bxf5 $1 Nxc3+
$1 {Obviously, it is impossible for a human player to calculate all this stuff
in time-trouble.} 37. Rxc3 Qa4 38. Re1 Qxa2+ 39. Kc1 Qa3+ 40. Kd2 Rf8 41. Qe7
Qxe7 42. Rxe7 Rxf5 $11) 31. Qxa7 ({After} 31. Kb2 Re2 32. Qxa7 Rdd2 {Black has
a good compensation for two pawns.}) 31... Ra8 {For the moment I thought that
I am winning, but then I saw that we are actually heading to a forced draw.}
32. Qb6 Rxa2 $1 33. Kxa2 Qxc1 34. Bxf5 {The sleeping bishop joins the action
just in time, protecting Pc2.} Ra8+ 35. Ra7 Rxa7+ 36. Qxa7 gxf5 37. Qb6+ Kg7
38. Qd4+ Kf7 39. Qd5+ {I can't escape from the perpetual check.} Kf6 40. Qd4+
Ke6 41. Qc4+ Ke7 42. Qc5+ Ke6 43. Qc4+ Kf6 44. Qd4+ Kg6 45. Qd6+ Kf7 46. Qd5+
Kf6 47. Qd4+ Ke6 48. Qc4+ Kf6 49. Qd4+ 1/2-1/2

[Event "POL-chT 66th"]
[Site "Katowice"]
[Date "2010.09.12"]
[Round "9"]
[White "Krejci, Jan"]
[Black "Kravtsiv, Martyn"]
[Result "0-1"]
[ECO "C58"]
[WhiteElo "2454"]
[BlackElo "2559"]
[Annotator "RR"]
[PlyCount "40"]
[EventDate "2010.09.04"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]
[WhiteTeam "Wroclaw"]
[BlackTeam "Prokonex"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8.
Qf3 Be7 (8... Rb8 9. Bd3 h6 10. Ne4 Nd5 11. b3 Nf4 12. Bb2 f6 13. O-O Be7 14.
Re1 O-O 15. Bf1 c5 16. Ng3 Qd7 17. Nh5 Bb7 18. Qd1 Ng6 19. h3 Kh7 20. Na3 Rbd8
21. Bc3 Nc6 22. Nc4 Nh4 23. Na5 Bc8 24. Bb5 Bb7 25. Nxb7 Qxb7 26. Qg4 Ng6 27.
Bd3 Rxd3 28. cxd3 f5 29. Qg3 Qd7 30. Re2 Bd6 31. Rae1 f4 32. Qg4 Rf5 33. g3 Qf7
34. gxf4 Nxf4 35. Nxf4 Rg5 36. Qxg5 hxg5 37. Ng2 Nd4 38. Bxd4 {Ganguly,S (2614)
-Amin,B (2627) Abu Dhabi 2014 1/2-1/2 (62)}) 9. Bxc6+ Nxc6 10. Qxc6+ Bd7 11.
Qc4 O-O 12. Nc3 Rc8 13. Qe2 h6 14. Nf3 e4 $1 {[%csl Rd2,Re1]} 15. Nxe4 Nxe4 16.
Qxe4 Bb5 $44 {[%csl Re1][%cal Gf8e8]} 17. d3 $146 (17. a4 Re8 18. axb5 Bd6 19.
Qxe8+ Qxe8+ 20. Kd1 Qxb5 21. Ne1 Re8 22. d3 Qh5+ 23. f3 Qe5 24. Bd2 Qxb2 25.
Rc1 Ba3 26. c3 Qb3+ 27. Rc2 Qb1+ 28. Bc1 Bxc1 29. Rxc1 Rxe1+ {0-1 (29) Mas,H 
(2386)-Iuldachev,S (2520) Kuala Lumpur 2008}) 17... Rxc2 (17... Re8 18. O-O
Rxc2) 18. Nd4 $2 Bb4+ {[%cal Gf8e8]} 19. Kd1 Re8 20. Qg4 Bxd3 0-1

[Event "Canadian op"]
[Site "Edmonton"]
[Date "2009.07.13"]
[Round "3"]
[White "Tayar, Jonathan"]
[Black "Ni, Hua"]
[Result "0-1"]
[ECO "C58"]
[WhiteElo "2342"]
[BlackElo "2701"]
[Annotator "Shabalov,A"]
[PlyCount "64"]
[EventDate "2009.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CAN"]
[SourceTitle "CBM 132 Extra"]
[Source "ChessBase"]
[SourceDate "2009.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.03"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8.
Qf3 {It is obvious why this move gets so much attention lately: once you feed
it to the computer it shows that black compensation for the material is very
doubtful.} Be7 9. Bd3 h6 {the biggest names ever entered this territory} (9...
O-O 10. O-O h6 11. Ne4 Nd5 12. Ng3 Nb4 13. Nf5 Bg5 14. Re1 Nxd3 15. cxd3 Qf6
16. Ng3 Qxf3 17. gxf3 c5 18. Rxe5 Nc6 19. Rxc5 Nd4 20. Nc3 Nxf3+ 21. Kh1 Ne1
22. Nce4 f5 23. Nd6 Be7 24. Rxc8 Raxc8 25. Nxc8 Rxc8 26. b4 Nxd3 27. Ba3 g6 28.
Rb1 Rc2 29. Nf1 Rxa2 30. Rb3 Nxf2+ 31. Kg1 Ne4 32. Bb2 Kf7 33. d3 Ng5 34. Nd2
Bf6 35. Nc4 Nf3+ 36. Kg2 Bxb2 37. Kxf3 Bd4 38. Kg3 g5 39. Ra3 Rxa3 40. Nxa3 Ke6
41. Nc2 Ke5 42. h3 Bb6 {0-1 Kaidanov,G (2596)-Onischuk,A (2664)/ Tulsa 0-1
Kaidanov,G (2596)-Onischuk,A (2664)/ Tulsa}) 10. Ne4 Nd5 11. Ng3 O-O 12. Bf5
Bg5 {This looks like an attempt to secure f4 square for the knight and leads
to a fascinating position.} (12... Bb7 13. d3 Nf4 14. O-O g6 15. Bxf4 exf4 16.
Qxf4 Bg5 17. Qg4 gxf5 18. Nxf5 Bc8 19. Nc3 Qf6 20. f4 Bxf5 21. fxg5 Bxg4 22.
gxf6 Rab8 23. b3 Nb7 24. Rf4 Be6 25. Re1 Nd6 26. Re5 Kh7 27. Rc5 Rbc8 28. Ne2
Rg8 29. Ra5 Rc7 30. Nd4 Rg5 31. Ra6 Bc8 32. Ra4 c5 33. Nf3 Rf5 34. Rxf5 Nxf5
35. Ne5 Nd4 36. c4 a6 37. Ra5 Bb7 38. Kf2 h5 39. h4 Nf5 40. g3 Nd6 41. a3 Ne8
42. b4 cxb4 43. axb4 Nxf6 44. Ke3 Bc8 45. d4 Ng4+ 46. Nxg4 hxg4 47. Kd3 f5 48.
d5 f4 49. gxf4 g3 50. Ra1 g2 51. c5 Rg7 52. Rg1 {0-1 Brkic,A (2558)-Sachdev,T 
(2425)/Rijeka CRO 0-1 Brkic,A (2558)-Sachdev,T (2425)/Rijeka CRO}) 13. O-O Bb7
14. Ne4 g6 15. Nxg5 hxg5 16. Be4 f5 17. Bxd5+ cxd5 18. d3 Nc6 19. c3 g4 20. Qg3
g5 $5 {Setting up a nice trap. Objectively the pawn belongs on g6. #} (20...
Ba6 {=/+}) 21. f3 $2 {Allows brilliant breakthrough by the Chinese GM.} (21.
Na3 $14) 21... f4 $1 22. Qf2 (22. Qxg4 Bc8 23. Qh5 Kg7 {will cost White at
least a piece.}) 22... gxf3 23. Qxf3 e4 $3 24. Qh5 {"White queen walks and the
night grows pale"} Kg7 25. h4 e3 26. hxg5 Qd6 27. Na3 {Jonathan is a good
sport.This is why he refrains from} (27. Qh6+) 27... Rh8 28. Qf3 $2 {It was
the last chance to bring the knight into the play} (28. Nb5 Qc5 29. Qe2 $17)
28... Ne5 29. Qxf4 Raf8 $1 {"So sad it ends as it began"} 30. Qd4 Rh1+ 31. Kxh1
Rxf1+ 32. Kh2 Kg6 0-1