[Event "Tata Steel-A 81st"]
[Site "Wijk aan Zee"]
[Date "2019.01.20"]
[Round "8"]
[White "Duda, Jan Krzysztof"]
[Black "Kramnik, Vladimir"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2738"]
[BlackElo "2777"]
[PlyCount "89"]
[EventDate "2019.01.12"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "NED"]
[EventCategory "21"]
[SourceTitle "CBM 188"]
[Source "ChessBase"]
[SourceDate "2018.12.21"]
[SourceVersion "1"]
[SourceVersionDate "2018.12.21"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. O-O d6 6. c3 a6 7. a4 O-O 8. Bg5 h6
9. Bh4 g5 10. Bg3 Ba7 11. Nbd2 Nh7 12. h3 h5 13. d4 h4 14. Bh2 g4 15. hxg4 Bxg4
16. dxe5 dxe5 17. b4 h3 18. b5 Ne7 19. gxh3 Bxh3 20. Nxe5 Kg7 21. Nxf7 Rxf7 22.
Bxf7 Bxf1 23. Bb3 Bh3 24. Be5+ Nf6 25. Bxf6+ Kxf6 26. Qf3+ Bf5 27. Rd1 Qc8 28.
exf5 Qxf5 29. Ne4+ Kg7 30. Qxf5 Nxf5 31. Rd7+ Kh6 32. bxa6 bxa6 33. Rxc7 Bb8
34. Rf7 Nh4 35. Rf6+ Kg7 36. Kf1 Ra7 37. Rb6 Be5 38. Bd5 Ng6 39. c4 Bd4 40. c5
Nf4 41. Bb7 Nd3 42. Bxa6 Bxc5 43. Re6 Nf4 44. Nxc5 Rc7 45. Re4 1-0

[Event "Hamburg FIDE GP"]
[Site "Hamburg"]
[Date "2019.11.07"]
[Round "1.1"]
[White "Duda, Jan Krzysztof"]
[Black "Nepomniachtchi, Ian"]
[Result "1-0"]
[ECO "A29"]
[WhiteElo "2748"]
[BlackElo "2773"]
[PlyCount "87"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventRounds "4"]
[EventCountry "GER"]
[SourceTitle "CBM 193"]
[Source "ChessBase"]
[SourceDate "2019.12.31"]
[SourceVersion "1"]
[SourceVersionDate "2019.12.31"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nb6 6. Nf3 Nc6 7. a3 Be7 8. b4
O-O 9. e3 a6 10. Qc2 Be6 11. O-O Bc4 12. Rd1 Bd3 13. Qb2 Qd7 14. Ne1 Bg6 15. d3
Rad8 16. Ne4 Nd5 17. Nc5 Bxc5 18. bxc5 Rb8 19. Qb3 Rfd8 20. Bb2 Nf6 21. Rac1
Qe7 22. Qc3 Bh5 23. Rd2 e4 24. Bxe4 Rd7 25. Bf5 Rd5 26. e4 Rxf5 27. exf5 Rd8
28. Qc4 Nd5 29. Qe4 Qg5 30. f4 Qh6 31. h3 f6 32. Ng2 Bf7 33. Kh2 Nde7 34. g4
Nd5 35. Re2 Re8 36. Qf3 Rxe2 37. Qxe2 g6 38. fxg6 hxg6 39. Kg3 Nd8 40. Qe4 c6
41. Bxf6 Nxf6 42. Qe7 Nh5+ 43. gxh5 Ne6 44. hxg6 1-0

[Event "Hamburg FIDE GP"]
[Site "Hamburg"]
[Date "2019.11.09"]
[Round "2.2"]
[White "Duda, Jan Krzysztof"]
[Black "Yu, Yangyi"]
[Result "1-0"]
[ECO "D94"]
[WhiteElo "2748"]
[BlackElo "2753"]
[Annotator "Duda,Jan Krzysztof"]
[PlyCount "71"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventRounds "4"]
[EventCountry "GER"]
[SourceTitle "CBM 193"]
[Source "ChessBase"]
[SourceDate "2019.12.31"]
[SourceVersion "1"]
[SourceVersionDate "2019.12.31"]
[SourceQuality "1"]

{In our first encouter I gambled playing the Petroff with Black, and was lucky
to escape. Now I was obviously in the much more comfortable situation, but
with no real intention to gamble anymore.} 1. c4 c6 {So the Slav. I was
expecting the Schlechter variation likely to happen, as it was a pet line of
my opponent against Levon Aronian in the earlier stage of the GP in Riga.
Still, I wasn't quite prepared for that, as lately my opponent had been trying
almost any opening, most notably 1...e5.} 2. Nf3 d5 3. e3 Nf6 {Aronian has
gotten this very position 6 times against Yu Yangyi, and in all of them he
started with 4.d4 and after 4...g6 tried different setups. However, after 5.d4
other moves were a concern for me, that's why I prefered to start with 5.Nc3.}
4. Nc3 g6 5. d4 Bg7 6. Be2 O-O 7. O-O Ne4 $5 {A surprise. My opponent had
tried before:} (7... a6 8. a4 (8. h3 e6 9. b3 Nbd7 {1/2 (63) Aronian,L (2756)
-Yu,Y (2736) Riga 2019}) 8... e6 (8... a5 9. cxd5 cxd5 10. Bd2 Nc6 11. Qb3 {
1-0 (57) Aronian,L (2756)-Yu,Y (2736) Riga 2019}) 9. b4 Ne4 10. Nxe4 dxe4 11.
Nd2 f5 12. c5 Nd7 13. Nc4 $16 {0-1 (29) Wei,Y (2721)-Yu,Y (2763)
Khanty-Mansiysk 2019}) ({and} 7... dxc4 8. Bxc4 Bg4 9. Be2 Nbd7 10. e4 (10. h3
Bxf3 11. Bxf3 e5 12. d5 cxd5 13. Bxd5 Nc5 $11 {1/2 (46) Aronian,L (2756)-Yu,Y 
(2736) Riga 2019}) 10... Bxf3 11. Bxf3 e5 12. d5 cxd5 13. exd5 Re8 14. Bg5 h6
15. Be3 {1/2 (53) Aronian,L (2756)-Yu,Y (2736) Riga 2019; As I'm not a regular
1.d4 player, after 7...Ne4 I was already out of the book}) 8. Nxe4 {I chose
this not so popular option, mostly because I was hoping for 9...f5 which I
will try to explain later. Obviously there are some alternatives, which are
more pretending to an opening edge.} (8. Qb3 Nxc3 9. bxc3 b6 {I just didn't
want to play this Grunfeld-like position, even if it looks comfortable for
White.}) ({Also I totally forgot about} 8. a4 {which had been played by Bu
Xiangzhi, and annotated by Anish Giri in some episode of NIC. Possibly if I
had recalled that game, I would have gone for 8.a4.}) 8... dxe4 9. Nd2 c5 {
He played it quickly and it was obvious he was in his prep.} (9... f5 {In this
manner my opponent had played against Wei Yi in the World Cup. I remembered
this game because I made a bet about the final result of it with a friend of
mine. Even though Yu had a disastrous position after the opening, he managed
to outplay Wei Yi in the middlegame, so that I lost an easy cash.}) 10. dxc5 f5
11. Rb1 {After some thought I went for this, because I wanted to get my rook
and black-squared bishop back to business. There are other moves, but only
with a rather modest engine's plus, which is a rarity in standards of the
Schlechter variation.} (11. Nb3 Qxd1 12. Rxd1 Bd7) (11. Qc2 $5) 11... a5 12. a3
(12. b3 {is not much of an improvement:} Na6 13. Bb2 Bxb2 14. Rxb2 Nxc5 15. Nb1
Qb6 $11) 12... a4 13. b4 axb3 14. Nxb3 ({After} 14. Qxb3 {my engine, in some
depth, suggests the following variation:} Nd7 15. Qb4 Nb8 16. Qb3 {with a
repetition :)}) 14... Qxd1 15. Rxd1 {I was pleased with my position.
Temporarily I'm a pawn up in a safe endgame, where I'm playing for two results
only. However, Black is very solid, and the position objectively is close to
equal.} Nd7 16. Kf1 {Awaiting and getting the king closer to the action.} h5
17. Bd2 $5 {Not seeing a way to make a progress, I decided to sacrifice back a
pawn to activate my pieces.} Rxa3 {Actually the engine doesn't mind this pawn,
and suggests some slow play instead,} ({like} 17... Kf7 18. Bb4 Ne5 19. Na5 Bf6
) 18. Na5 Nxc5 $6 {Even though it felt perfectly natural I was pleased when he
played this.} ({Instead he could have gone for} 18... Ne5 {playing for
activity. The comp evaluates everything close to the infamous 0.00. One
exemplary line is} 19. Nxb7 Bd7 20. Na5 Ba4 21. Ra1 Bxd1 22. Rxa3 Bxe2+ 23.
Kxe2 Rc8 $11) ({or even} 18... Kf7) 19. Bb4 Ra2 20. Bxc5 Rxa5 21. Bxe7 Rf7 (
21... Re8 22. Bd6 {just looks less sensible for Black, as his light-squared
bishop is tied to the b7-pawn.}) 22. Bb4 (22. Rd8+ Kh7 23. Bb4 Ra8 {is the
same.}) 22... Ra8 23. Rd8+ Kh7 24. Bd6 $1 {Basically the only try, with a
hidden tactical idea.} Rd7 $2 {And he fell for it.} ({The way to solve all
problems was} 24... Bf6 25. Re8 Rg7 $1 {and as Black is going to trade all
rooks, White's advantage is kept to the minimum:} 26. c5 Rg8 27. Rxg8 Kxg8 28.
Bc4+ Kg7 29. Ke2 Ra1 30. Rxa1 (30. Rb6 Bc3 31. f3 Re1+ 32. Kf2 Rc1 $11) 30...
Bxa1 31. Bd5 Kf6 32. f3 exf3+ (32... g5 {Some bizzare suggestion of an engine.}
33. fxe4 fxe4 34. Bxe4 Be5 35. Bxe5+ Kxe5 36. Kd3 h4 {and thanks to b6/Ba6+
Black is holding his own.}) 33. Bxf3 h4 $11 {and White has some pressure, but
it should peter out to a draw.}) 25. Rxd7 Bxd7 {He looked magnificently in my
eyes thinking we were about to agree to a draw, but missed my next move
altogether.} 26. g4 $3 {Two exclams for the combo of strength of the move,
surprise effect and the punch on the most controlled square (g4) in the
position. Now he sank into deep thought for over 30 minutes.} fxg4 {Relatively
best.} (26... hxg4 27. Rxb7 Bc8 28. Re7 $1 {Here for some strange reason (in
contrast to the game) this is crushing.} Kh6 29. c5 $18) (26... Ra1 {During
the game I thought this may be the best for Black.} 27. Rxa1 Bxa1 28. gxh5 gxh5
(28... g5 29. c5 Bf6 30. Bc4 $16) 29. Bxh5 b5 {and I don't know how to assess
this position. A deeper investigation is required}) (26... Bc6 27. gxf5) 27.
Rxb7 Bc8 28. Re7 $2 {I saw I was winning the pawn, but the position becomes
drawish.} ({A better attempt would have been} 28. Rc7 $1 {After that I didn't
see how to proceed after} Kg8 29. c5 Be6 {and indeed there isn't anything
concrete, but I have the choice between prospective possibilities like} 30. Re7
(30. Kg2) (30. Bb5) 30... Bd5 31. Bb5 {and White is pressing.}) 28... Kh6 $1 (
28... Ra1+ 29. Kg2 Re1 30. Be5 Rxe2 31. Rxg7+ Kh6 {and I didn't see a
follow-up, but had a feeling there might be some ideas connected with the
unsafe position of the black king.} 32. Rg8 Be6 33. Rh8+ Kg5 34. Re8 Bd7 $1 (
34... Kf5 35. Bh8 $1 $18) (34... Bf5 35. Rf8 Kh6 36. Bf6 g5 37. Be7 Bg6 38. Rc8
$36) 35. Rf8 Kh6 36. Bf6 g5 37. Rg8 Be6 38. Bxg5+ Kh7 39. Re8 Bxc4 40. Kg3 {
and it is very drawish, but obviously after a bit of suffering.}) 29. Bf4+ g5
30. Bxg5+ Kxg5 31. Rxg7+ {I had clearly overestimated my position. Black's
active rook and prospects of kingside play are sufficient for equality.} Kh4
32. Rg8 $5 {Pinning him and setting a trap...} Kh3 $4 {And he fell for it!
Unbelievable!} ({Black had to free his rook from the pin with} 32... Ra1+ 33.
Kg2 Be6 34. Re8 Bf5 35. Rd8 Kg5 $11 {and I'll obviously try to squeze it, but
objectively it's just a draw.}) 33. Bxg4+ $1 {It was clearly a terrible moment
for Yu. Not only he blundered the tactics on the very same square again (and
again on the most secured in the position!), but also it made him flying home.
A disaster... I didn't really believe in 32...Kh3 because I thought that 33.
Kg1 is winning as well, and even dared to say in the interview after the game
that 32...Kh3 is the biggest mistake my opponent had ever made. Only on my way
back to hotel, I did realise that after the exchange sacrifice is just a
fortress.} (33. Kg1 Ra1+ 34. Bf1+ Rxf1+ 35. Kxf1 Be6 36. Rg5 Bxc4+ 37. Kg1 h4
38. Re5 Bd3 $11 {and White can't win}) 33... Kh4 {There is this stalemate
trick, and White has only one but good enough move to win:} 34. Rxc8 (34. Bxc8
$4 Ra1+ 35. Ke2 Ra2+ 36. Kd1 Rd2+ $8 $11) 34... Ra1+ 35. Kg2 hxg4 36. Re8 1-0

[Event "Hamburg FIDE GP"]
[Site "Hamburg"]
[Date "2019.11.17"]
[Round "4.3"]
[White "Duda, Jan Krzysztof"]
[Black "Grischuk, Alexander"]
[Result "1-0"]
[ECO "A29"]
[WhiteElo "2748"]
[BlackElo "2764"]
[PlyCount "89"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventRounds "4"]
[EventCountry "GER"]
[SourceTitle "CBM 193"]
[Source "ChessBase"]
[SourceDate "2019.12.31"]
[SourceVersion "1"]
[SourceVersionDate "2019.12.31"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 Bb4 4. Bg2 O-O 5. Nf3 Re8 6. O-O e4 7. Nd4 Nc6 8. Nc2
Bxc3 9. bxc3 d5 10. cxd5 Qxd5 11. Ne3 Qh5 12. f3 Ne5 13. fxe4 Neg4 14. Nxg4
Bxg4 15. Qc2 Bxe2 16. Rf5 Bd1 17. Qb1 Qe2 18. Rf2 Qh5 19. Rf5 Qe2 20. Rf2 Qh5
21. h3 Rad8 22. d4 Ba4 23. Qxb7 Qa5 24. e5 Nd5 25. Bd2 Qb5 26. Qxb5 Bxb5 27.
Bg5 Rd7 28. Rc1 Bc4 29. Rb2 h6 30. Bd2 a5 31. a4 c5 32. Rcb1 Red8 33. Rb8 Bd3
34. R1b7 Rxb8 35. Rxb8+ Kh7 36. dxc5 Bc4 37. Be4+ g6 38. c6 Rc7 39. Rd8 Nb6 40.
e6 Bxe6 41. Bf4 Rc8 42. c7 Nxa4 43. Bb7 Nb6 44. h4 a4 45. Bxc8 1-0

[Event "Norway Chess 8th"]
[Site "Stavanger"]
[Date "2020.10.10"]
[Round "5"]
[White "Duda, Jan Krzysztof"]
[Black "Carlsen, Magnus"]
[Result "1-0"]
[ECO "B15"]
[WhiteElo "2757"]
[BlackElo "2863"]
[Annotator "Duda,Jan Krzysztof"]
[PlyCount "125"]
[EventDate "2020.10.05"]
[EventType "tourn"]
[EventRounds "10"]
[EventCountry "NOR"]
[EventCategory "21"]
[SourceTitle "CBM 199"]
[Source "ChessBase"]
[SourceDate "2020.12.01"]
[SourceVersion "1"]
[SourceVersionDate "2020.12.01"]
[SourceQuality "1"]

{[%evp 0,125,45,40,69,68,68,44,44,44,46,22,22,27,18,18,20,15,12,12,41,34,35,
-27,82,80,143,142,125,125,183,111,115,67,97,97,109,92,197,163,205,54,140,47,
176,134,193,171,164,166,166,142,255,255,245,225,240,240,289,212,212,207,207,
176,344,427,369,428,461,426,528,525,524,540,492,471,537,529,507,507,599,575,
575,386,433,378,403,403,403,402,476,464,473,425,511,511,538,368,398,297,333,
333,403,403,449,442,435,455,435,496,505,481,532,501,672,663,706,458,499,370,
1439,1439,1439,1489,1489,1532,1830,1934]} 1. e4 {The start of the tournament
had been extremely bad for me, as I had scored 0.5 out of 4, and now had to
meet Magnus two times in a row. Fortunately there was a free day in-between,
so I allowed myself to forget about the tournament for a while. I was also
largely surprised by quite some interest of my supporters in Poland, who
believed in a positive score for this game, possibly more than I did!  Der
Turnierstart war extrem schlecht für mich gewesen, denn ich hatte 0.5 aus 4
und musste nun zweimal nacheinander gegen Magnus antreten. Zum Glück gab es
dazwischen einen freien Tag, daher erlaubte ich mir, das Turnier eine Weile zu
vergessen. Ich war auch ziemlich überrascht von dem beträchtlichen Interesse
seitens meiner Fans in Polen, die an das positive Ergebnis in dieser Partie
glaubten, womöglich mehr als ich!} c6 {The surprise was in the air, but the
thing is that you don't know what it's going to be, until it's done. Die
Überraschung lag in der Luft, aber das Ding ist, dass man ja nicht weiß, was
passieren wird, bis es erledigt ist.} 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 $5 {
But this was a real shocker. I have always found it difficult to believe in
this system, even though I have given it a try a few times myself. Magnus
might have been inspired by L'Ami's chessable course on the Caro Kann, where
among others this variation was included. I was lucky enough to have a quick
look on a short & sweet version (a free and limited one) of the course before
the tournament, so at least I wasn't completely caught unaware.  Aber das war
ein echter Schocker. Es ist mir immer schwer gefallen, an dieses System zu
glauben, obwohl ich es ein paarmal selbst versucht habe. Magnus war womöglich
inpiriert von L'Amis chessable-Kurs zu Caro Kann, der unter anderem diese
Variante beinhaltete. Ich hatte das Glück, vor dem Turnier kurz einen Blick
auf eine Short&sweet-Version des Kurses (gratis und begrenzt) zu erhaschen,
daher wurde ich zumindest nicht völlig kalt erwischt.} 5. Nxf6+ exf6 6. c3 Bd6
7. Bd3 O-O 8. Qc2 Re8+ 9. Ne2 h5 {That's the way they play these days, and
it's the reason for the renaissance of this very variation.  So spielen sie es
heutzutage, und es ist der Grund für die Renaissance genau dieser Variante.}
10. Be3 Nd7 ({I had one earlier experience in this variation: Ich hatte eine
frühere Erfahrung in dieser Variante:} 10... h4 11. O-O-O Be6 12. c4 Nd7 13.
Kb1 Nf8 14. Nc3 Bg4 15. Rde1 Bb4 16. a3 Bxc3 17. Qxc3 Qd7 $13 {1/2 (68) Duda,J
(2734)-Lupulescu,C (2643) Batumi 2019; with an unclear game. Magnus' choice is
much sharper though. mit unklarem Spiel. Magnus' Wahl ist allerdings viel
schärfer.}) 11. O-O-O {Perhaps castling short was more suitable, but somehow
I found the king to be in greater danger there :) Vielleicht war kurze Rochade
passender, aber irgendwie schien mit der König dort in größerer Gefahr :)}
b5 $5 {This is the idea. Instead of the usual Nf8 retreat, Black aims for an
instant counterattack  Das ist die Idee. Statt des üblichen Sf8-Rückzugs
strebt Schwarz sofortigen Gegenangriff an.} 12. d5 {This is obviously the
mainstream choice, but I assume it would have been wiser to play it instantly,
rather than throwing away 20 minutes for free. Dies ist offensichtlich die
Mainstream-Fortsetzung, aber ich nehme an, es wäre klüger gewesen, es sofort
zu spielen, als dafür 20 Minuten zu verballern.} (12. Kb1 {felt too soft for
me. After fühlte sich für mich zu weich an. Nach} Nb6 13. Bc1 Be6 14. Rhe1 {
1/2 (89) Azarov,S (2604)-Van Foreest,J (2682) chess.com INT 2020} a5 $5 {
Black looks quicker. ist Schwarz offenbar schneller.}) (12. g4 $5 {as
suggested by Kramnik is interesting, but for some reason I didn't seriously
consider it during the game. , wie von Kramnik vorgeschlagen, ist interessant,
aber auf irgendeinem Grund zog ich es während der Partie nicht ernsthaft in
Betracht.}) 12... c5 (12... cxd5 {I got temped to find a killer after this
move, but I didn't quite suceed. Nach diesem Zug war ich verlockt, einen
Killer zu finden, aber ich schaffte es nicht ganz.} 13. Bh7+ (13. Bxb5 Bb7)
13... Kh8 (13... Kf8 14. Rxd5 Nb6 15. Rxb5 $16) 14. Rxd5 Ne5 (14... Nb6 15.
Rxh5 Bg4 16. Rh4 f5 17. g3 Be7 {I calculated this far, but couldn't make it
work. Soweit rechnete ich, aber konnte es nicht zum Funktionieren bringen.} 18.
Rxg4 $5 fxg4 19. h3 Bg5 20. hxg4 $18) 15. Be4 $1 Be6 16. Rd4 $16) 13. Bxb5 Rb8
14. c4 a6 (14... Rxe3 $5 {is a very interesting idea I had seen in L'Ami's
course before, and frankly speaking I was a bit surpised that Magnus didn't
choose this, as it felt very suitable given the tournament situation.  ist
eine sehr interessante Idee, die ich zuvor in L'Amis Kurs gesehen hatte, und
offen gestanden war ich ein bisschen überrascht, dass Magnus es nicht wählte,
da es angesichts der Turniersituation sehr passend schien.} 15. fxe3 Ne5 16. h3
$1 {This one I figured out. Das verstand ich noch.} Qa5 (16... g6 17. Rhf1) 17.
b3 Qa3+ 18. Kd2 g6 19. Rhf1 f5 20. Ke1 {Engines don't quite approve, but over
the board the position is a mess of course. Die Engines sind nicht ganz
einverstanden, aber am Brett ist die Stellung natürlich ein Chaos.}) 15. Ba4
Re7 (15... Rxe3 16. fxe3 Ne5 {again was possible, where again the best is war
wieder möglich, wonach} 17. h3 {wiederum das Beste ist.}) (15... h4 16. Nc3
Rxe3 17. fxe3 Ne5 18. Bb3 Bg4 19. Rdf1 Bh5 20. Kb1 {In all the lines Black has
acceptable compensation, but it doesn't seem to be sound. In allen Abspielen
hat Schwarz akzeptable Kompensation, aber gesund scheint es nicht zu sein.}) (
15... g6 16. Nc3 Rb4 17. b3 Re7 18. a3 Rb7 19. Kb1 $5 Ne5 20. Ka2) (15... Re5
$5 {looks quite mysterious, I assume Bf5 is the idea. wirkt sehr mysteriös,
ich nehme an, Lf5 ist die Idee.} 16. Nc3 (16. Bb3 Nb6 17. Nc3 {transposes.
leitet über.}) 16... Nb6 17. Bb3 Bf5 (17... a5 $5 $13) 18. Qe2 (18. Qd2 a5 19.
a3 (19. Qe2) 19... Nxd5 20. Nxd5 Rxb3 21. Nc3 Rb6 22. Nb5 Re4 $1 23. b3 Qe8 (
23... Qb8 24. a4 $1) 24. a4 (24. Nxd6 Rxb3 25. Qd5 $8 Rexe3 $8 26. Nxe8 Re2 27.
Nxf6+ gxf6 28. Qxf5 Rc3+ 29. Kb1 Rb3+ $11) 24... Qe6 $5 (24... Rxb5 $6 25. axb5
Qe5 26. Qb2 Qe6 27. Rd5 $16) (24... Qe5 25. Qb2 $1 (25. Qc3 $6 Qxc3+ 26. Nxc3
Rxe3 27. fxe3 Rxb3 28. Rxd6 Rxc3+ 29. Kb2 Rxc4 30. Rc1 Rb4+ 31. Ka3 Be6 32.
Rxe6 fxe6 33. Rxc5 Re4 34. Rxa5 Rxe3+ 35. Kb4 Re4+ 36. Kb3 $11) 25... Rxe3 26.
Qxe5 Rxe5 27. Rxd6 Rxd6 28. Nxd6 Bd7 29. Rd1 Bc6 30. g3 g5 $11) 25. Qxa5 Rxe3 (
25... Be5 26. Qa8+ (26. Rd5 Bg6) 26... Kh7 27. Qd5 Qc8 $8) 26. fxe3 Qxe3+ 27.
Kb2 Be5+ 28. Ka3 Bc2 29. Qa8+ $8 Rb8 30. Qf3 Qxf3 31. gxf3 Bxd1 32. Rxd1 Bxh2
33. Rh1 Bf4 34. Rxh5 g5 $13) 18... Bg4 19. Qd3 (19. f3 $5 Qc7 20. Rd2 $8 Rbe8
21. Nd1 Bd7 $13) 19... Bxd1 (19... Bf5 20. Qf1 Qd7 21. Rd2) 20. Rxd1 f5 (20...
Nc8 21. f4 Re7 22. Bd2 $36) 21. Bf4 g6 22. Bxe5 Bxe5 $44) 16. Ng3 {I was quite
pleased to have the possibility to re-route the knight. Ich war recht erfreut,
die Möglichkeit zu haben, den Springer umzuleiten.} Ne5 (16... g6 {If I
remember correctly this move worried me a bit, as Ne4 is bad (ok on
correspondence level, where White can make a bunch of only moves), but White
can play something else instead. Wenn ich mich recht erinnerte, sorgte mich
dieser Zug ein wenig, da Se4 schlecht ist (okay, auf Fernschachebene, wo Weiß
einen Haufen einziger Züge machen kann), aber Weiß kann stattdessen etwas
anderes spielen..} 17. Rhe1 {The most natural. Am natürlichsten.} (17. Ne4 $2
Rxe4 18. Qxe4 Ne5 (18... Nb6) 19. Qc2 Bf5 (19... Rb4 $5 20. Bb3 Qb6 21. f4 $8
Bf5 22. Qe2 $8 (22. Qc3 a5 $1 $19) 22... Ng4 $132) 20. Qc3 Rb4 21. Bb3 Qb6 (
21... Qb8 22. Rhe1 (22. f4 a5 23. fxe5 Bxe5 24. Bd4 cxd4 25. Rxd4 Bf4+ 26. Kd1
a4 27. Rxf4 Qxf4 28. Qxb4 Bg4+ 29. Kc2 Bf5+ $11) 22... a5 (22... Ng4 23. h3 Be5
24. hxg4 Bxc3 25. bxc3 Rxb3 26. axb3 Qxb3 27. gxf5 Qxc3+ 28. Kb1 Qb3+ $11) 23.
Bf4 $8 a4 (23... h4) 24. Bc2 Rxc4 25. Bxe5 Bxe5 (25... Rxc3 26. Bxc3 {0.00 0.00
}) 26. Qxc4 Qxb2+ 27. Kd2 Bxc2 28. Ke3 $1 Bxd1 29. Rxd1 Bd4+ 30. Rxd4 cxd4+ 31.
Qxd4 Qa3+ 32. Qd3 Qxa2 33. d6 Qe6+ 34. Kd2 Qd7 $11) (21... Nxc4 22. Bxc4 Be5
23. Bd4 Bf4+ 24. Be3 Be5 25. Rd4 $5 a5 $13) 22. Rhe1 $1 Nxc4 23. Bg5 $3 (23.
Bh6 Ne5 $17) 23... Qb5 (23... Be5 24. Rxe5 Nxe5 25. Be3 Nd7 $13) (23... fxg5 $4
24. Re8+ Bf8 25. Bxc4 $18) 24. Qxf6 $8 Bf8 25. Re7 (25. d6 Rxb3 26. Re7) 25...
Bxe7 26. Qxe7 Rxb3 27. axb3 Qxb3 28. Qe8+ $8 Kg7 29. Rd2 Nxd2 30. Qe5+ Kh7 31.
Kxd2 Qc2+ 32. Ke1 $11) (17. Bd2) 17... h4 (17... Nb6 18. Bc6 h4 19. Ne4 Bf5 20.
f3 $16) 18. Ne4 Rxe4 19. Qxe4 Ne5 20. Qc2 $1 Bf5 (20... Rb4 21. Bb3 Bf5 (21...
a5 22. a3 Bf5 23. Qc3 {transposes. leitet über.}) 22. Qc3 {again transposes.
leitet wieder über.}) 21. Qc3 Rb4 (21... Ng4 22. b3 Be5 23. Qd2 Qd6 24. g3 $16
) 22. Bb3 a5 23. a3 Qb8 $1 24. Ba2 (24. axb4 $2 axb4 25. Qd2 Qa8 26. Qc2 Bxc2
27. Kxc2 Qc8 $19) 24... Rb7 25. h3 {Stopping Ng4. Stoppt Sg4.} g5 26. Re2 a4
27. Rdd2 Bg6 28. Kd1 {White is better according to the engine. Laut Engine
steht Weiß besser.}) (16... Nb6 $5 17. Bc6 Rxe3 18. fxe3 h4 19. Nf1 $1 Bg4 20.
Rd3 Bf5 21. Nd2 $14 {is the optimal but highly computerish variation. ist die
optimale, aber höchst computermäßige Variante.}) 17. Ne4 (17. Bd2 $1 {
seems to be better, not to allow the Rb4 idea as was the case in the game.
scheint besser zu sein, um nicht die Tb4-Idee zu erlauben, wie es in der
Partie kam.} h4 (17... Ng4 18. Rhe1 $1 Nxf2 19. Rxe7 Bxe7 20. Re1 Ng4 21. h3
Ne5 22. Nxh5 $16) (17... g6 18. Rhe1 h4 19. Ne4 Bf5 20. h3 $16) (17... Reb7 18.
b3 h4 19. Ne4 {transposes. leitet über.}) 18. Ne4 Reb7 (18... h3 $6 {is a
typical idea in this structure, but here it just doesn't work: ist eine
typische Idee in dieser Struktur, aber hier funktioniert es einfach nicht:} 19.
f4 hxg2 20. Rhg1 $18 Nf3 $2 21. Nxf6+ $1 gxf6 22. Rxg2+ Kh8 23. Qc3 $1 $18) 19.
b3 Bf5 (19... h3 20. Nxd6 Qxd6 21. f4 hxg2 (21... Ng6 22. gxh3 Nxf4 23. Rhe1
Bxh3 24. Re3) 22. Rhe1 g1=Q 23. fxe5 Qxe1 24. exd6 Qf2 25. Qe4 $18) 20. h3 Ng6
21. Rhe1 $16 {is better for White, and in contrast to the game his position is
pretty solid. ist besser für Weiß, und im Gegensatz zu seiner Partie ist
seine Stellung ziemlich solide.}) 17... Reb7 18. b3 {I was hesitant to play
this move, but there is nothing better. Ich zögerte bei diesem Zug, aber es
gibt nichts Besseres.} Rb4 $1 {This surprised me, but in fact it's a brilliant
idea, showing good judgement by Magnus. Dies überraschte mich, aber in
Wirklichkeit ist es eine brillante Idee, die gutes Urteilsvermögen von Magnus
zeigt.} (18... Bf5 {was what I expected, but here White again can play war,
was ich erwartete, aber hier kann Weiß wieder mit starker Wirkung} 19. Bd2 $1
{with a strong effect. After spielen. Nach} Ng4 $5 {ist} 20. Rhf1 $1 {is good
for White: gut für Weiß:} Nxh2 21. Rh1 Ng4 22. Rxh5 Bg6 23. Rh3 {and White
is winning, thanks to the following tactics: und Weiß gewinnt dank der
folgenden taktischen Wendung:} Nxf2 $2 24. Nxf2 Bxc2 25. Rdh1 $1 $18) 19. Bd2 (
19. Nxd6 Qxd6 {is ok for Black e.g. ist okay für Schwarz, z.B.} 20. f4 Rxa4 $5
21. bxa4 Rb4 22. fxe5 Qxe5 23. Bxc5 Qf4+ 24. Qd2 Qxc4+ 25. Qc2 Qf4+ $11 {
with perpetual with perpetual}) 19... Rxa4 $1 20. bxa4 Bf5 $13 {I must admit I
didn't believe that Black is objectively fine here, but it turns out to be the
case with exact play. Black doesn't need to cash in immediately, he can rely
on a long-term positional compensation here. Furthermore we were both
approaching time trouble, so basically it was getting random from now on.  Ich
muss zugeben, dass ich nicht glaubte, dass Schwarz hier objektiv ordentlich
steht, aber bei genauem Spiel scheint dies der Fall zu sein. Schwarz braucht
nicht sofort zu kassieren, er kann hier auf langfristige positionelle
Kompensation setzen. Außerdem nähertne wir uns beide der Zeitnot, daher ging
es im Grunde von jetzt an drunter und drüber.} 21. Rde1 {Daydreaming of the
Re3-Rb3 manoeuvre. Träumt von dem Te3-Tb3-Manöver.} h4 (21... Ng4 $1 {
holds the balance according to the computer. hält die Balance laut Computer.}
22. f3 Bxe4 23. fxe4 (23. Rxe4 {I guess I would seriously consider giving the
exchange back. Ich schätze, ich würde ernsthaft erwägen, die Qualität
zurückzugeben.} Nf2 24. Rhe1 Nxe4 25. Qxe4 Qd7 26. f4 Qxa4 27. Qc2 Qd7 {
which is objectively level, but looks like easy play for Black. was objektiv
ausgeglichen ist, aber nach leichtem Spiel für Schwarz aussieht.}) 23... Be5
24. Bc3 Qc7 25. g3 Bd4 26. Re2 Qe5 27. Bxd4 cxd4 $5 (27... Qxd4 28. Rd1 Qa1+
29. Kd2 Qd4+ {is perpetual. ist Dauerschach.}) 28. Qd3 $13) 22. h3 (22. Re3 $1
{would be more exact. I was afraid of wäre genauer. Ich hatte Angst vor} Bg6 {
with the idea f5-f4, but apparently it's only chimera: mit der Idee f5-f4,
aber offenbar ist es nur ein Hirngespinst:} (22... Ng4 23. Rf3) (22... Bh7 23.
Rb3 $1) 23. f4 $1 (23. Rb3 h3 24. Rxh3 Ng4 25. Rf3 {is also ok. ist auch okay.}
) 23... Ng4 24. Rf3 Nh6 25. Rb3 Ra8 26. Re1 Nf5 27. Qb2 $16 {and White is
close to winning. and White is close to winning.}) 22... Ng6 23. Re3 Nf4 24. g4
{I wasn't overly happy with a potential target on h3, but at the very least I
stabilised my e4-knight somewhat Ich war nicht überglücklich über ein
potentielles Ziel auf h3, aber zuallermindest stabilisierte ich meinen
e4-Springer etwas.} Bg6 (24... hxg3 25. fxg3 Nh5 26. Rg1 Bh7 27. Bc3 Qd7 28.
Bb2 $1 $16 {is one example of an engine's approach, which has nothing in
common with how humans play chess. ist ein Beispiel für eine Herangehensweise
einer Engine, die nichts gemein hat damit, wie Menschen Schach spielen..}) 25.
Kd1 {Sidestepping ...Ne2+ if the rook moves. Umgeht ...Se2+, wenn der Turm
zieht.} f5 $1 {Even though it's not good objectively, he had to do something.
Otherwise I would just exchange everything with Rb3, Bxf4 etc. slowly
consolidating the position. Obwohl es objektiv nicht gut ist, irgendwas musste
er tun. Ansonsten würde ich einfach mit Tb3, Lxf4 etc. alles tauschen und die
Stellung langsam konsolidieren.} (25... Qe7 26. f3 Qe5 27. Rb3 Re8 28. Qc3 Qe7
29. Bxf4 Bxf4 30. Re1 $18) 26. Nxd6 Qxd6 27. gxf5 Bh5+ 28. f3 {In computer
language White is winning, but with so many targets on both flanks as well as
shortage of time (only +10s increment), it's anything but easy to reduce
Black's activity. In Computersprache steht Weiß auf Gewinn, aber bei so
vielen Zielen auf beiden Flanken sowie Zeitknappheit (nur +10 Sekunden
Inkrement) ist es alles andere als einfach, die schwarze Aktivität zu
reduzieren.} Qf6 29. Bc3 $6 (29. Rhe1 {was perhaps more logical, to bring more
toys to the party, but I was afraid of allowing counterplay with the passed
pawn. Concretely I didn't see how to proceed after war vielleicht logischer,
um mehr Spielzeug zur Party mitzubringen, aber ich hatte Angst, Gegenspiel mit
dem Freibauern zuzulassen. Konkret sah ich keine Fortsetzung für mich nach}
Kh7 (29... Qa1+ {also requires some good calculation: erfordert ebenfalls
einiges an guter Berechnung:} 30. Bc1 Qd4+ 31. Qd2 Qxc4 32. Re8+ Kh7 $1 33.
Qxf4 Qd3+ (33... Bxf3+ 34. Qxf3 Qxa4+ 35. Ke2 Rxe8+ 36. Be3 Qxa2+ 37. Kf1 $18)
34. Qd2 Bxf3+ 35. R1e2 $1 Bxe2+ 36. Rxe2 Qxh3 37. d6 $18) 30. Rb3 $5 (30. Qc3
Rb1+ (30... Qxf5 31. Qc2 $1 {is the idea: ist die Idee:} Qxc2+ 32. Kxc2 Ng2 33.
Rf1 Nxe3+ 34. Bxe3 Rc8 35. Kc3 $18) 31. Bc1 Qg5 32. Kc2 Qxf5+ 33. Re4 Ng2 34.
R1e2 Bxf3 35. Kxb1 Bxe2 36. Qc2 Bd1 37. Qxd1 Qxe4+ 38. Qc2 Qxc2+ 39. Kxc2 Kg6
40. d6 Kf6 41. Kd1 $18 {and the knight is trapped. und der Springer ist
gefangen.}) 30... Rxb3 31. Qxb3 Nxh3 32. Kc1 $18 {In general it's quite tricky
to analyse such games with engines afterwards. During the game everything
looks uncertain or scary, while the engine suggests that basically everything
wins :) Generell ist es so eine Sache, solche Partien hinterher mit Engines zu
analysieren. Während der Partie wirkt alles unsicher oder beängstigend,
während die Engine andeutet, dass im Grunde alles gewinnt. :)}) 29... Qg5 30.
Qe4 $2 {Objectively a poor move, made as an effect of miscalculation. However,
it won the game pretty straightforwardly, due to some lucky tactics in the
game. Objektiv ein schwacher Zug, gemacht als Effekt einer Fehlberechnung.
Allerdings gewann er die Partie ziemlich direkt aufgrund einiger glücklicher
taktischer Umstände auf dem Brett.} ({It would have been better to play
Besser gewesen wäre} 30. Rhe1 Kh7 {when White would have to admit his mistake,
and play , wonach Weiß seinen Fehler einräumen und} 31. Bd2 $1 Qg3 32. Rb3
$18 {which is still winning. spielen müsste, was noch immer gewinnt.}) 30...
Qg2 $2 {An extremely tempting move, but the bad one! Ein extrem verlockender
Zug, aber der schlechte!} ({The position is totally unclear after both Die
Stellung ist total unklar nach sowohl} 30... f6 {(!) (!)} 31. Bd2 (31. d6 Rb6
$5 32. d7 Rd6+ 33. Kc1 Rxd7 34. Kb1 Rd8 $13) 31... Qg2 32. Qxf4 (32. Rhe1 Rb2
33. Bc3 Nxh3 $1 34. Kc1 Ng5 35. Qd3 Rb8 36. Qd2 h3 37. Qxg2 hxg2 38. Rg1 Bxf3
39. Rxf3 Nxf3 40. Rxg2 Kf7 $11 {with a balanced endgame, but it's only after
random computerish lines, with approx 0% chance of happening in the actual
game mit einem ausgeglichenen Endspiel, aber erst nach wilden
computermäßigen Varianten, mit etwa 0% Chance, dass es in der tatsächlichen
Partie so kommt.}) 32... Qxh1+ 33. Re1 Rb1+ 34. Ke2 Qg2+ 35. Kd3 Rb7 $13 {
and Black is taking over, und Schwarz nimmt das Heft in die Hand,}) ({or more
sophisticated oder anspruchsvoller} 30... Kh7 31. Be5 (31. Rhe1 Ng2 32. R3e2
Nxe1 33. Bxe1 f6 $13) 31... Nxd5 $3 32. cxd5 Rb1+ 33. Qxb1 Qxe3 34. Kc2 Bxf3
35. Qe1 Qe4+ $1 36. Qxe4 Bxe4+ 37. Kc3 Bxh1 38. Kc4 $11 {with an apparently
equal position. mit offenbar ausgeglichener Stellung.}) 31. Rhe1 {I was lucky
to have this move. Dass ich diesen Zug hatte, war Glück.} ({My 'big' idea was
to play Meine 'große' Idee war} 31. Qxf4 {when White indeed would be winning
if not for wonach Weiß gewinnen würde, wäre da nicht} Rb1# $1) 31... Qxa2 $2
{A tempting follow-up, but it's even worse than the move before. Eine
verlockende Fortsetzung, aber sie ist sogar noch schlechter als einen Zug
vorher.} (31... Nxh3 32. Kc1 $18 {is relatively easy for White. ist relative
einfach für Weiß.}) (31... f6 $1 {would have been a real test. White wins
after wäre ein echter Test gewesen. Weiß gewinnt nach} 32. d6 $1 {is the
computer win, and the move I started calculating albeit honestly I doubt I
would go for it. Der Computergewinn, und der Zug, mit dessen Berechnung ich
begonnen hatte, wobei ich ehrlich gesagt bezweifle, dass ich ihn spielen
würde.} (32. Kc1 $5 {Here White is also in charge, possibly winning in the
endgame after Auch hier ist Weiß Chef und gewinnt wahrscheinlich in dem
Endspiel nach} Qxa2 33. Rd1 $1 {with the idea Qc2 and Re4. mit der Idee Dc2
und Te4.} (33. Qc2 $2 Qxc4 34. Re4 Nd3+ $1 {makes the difference. macht den
Unterschied.}) 33... Bxf3 $1 34. Qc2 $1 Qa3+ (34... Qxc2+ 35. Kxc2 Bxd1+ 36.
Kxd1 $16) 35. Kd2 Bxd1 36. Kxd1 Nh5 37. Ke2 $1 {A little move threating the
queen on a3! Ein kleiner Zug, der die Dame auf a3 bedroht!} Ng3+ 38. Kf2 $1 {
The queen is almost trapped, so Black must play Die Dame ist fast gefangen,
daher bleibt Schwarz nichts anderes als} Qb3 39. Qxb3 Rxb3 40. Bd4 $3 {and
White seems to be winning here. und hier scheint Weiß zu gewinnen.}) 32... Kh7
33. Kc1 (33. d7 Qxa2 34. Qc2 Qxc4 35. Kc1 {is the same thing. ist dasselbe.})
33... Qxa2 34. Qc2 Qxc4 35. d7 Rd8 36. Bxf6 $3 Qxc2+ 37. Kxc2 gxf6 38. Re4 $3
$18 {The variation seems highly unlikely to find even with 1 hour on the clock,
so I can only guess I would play 32.Kc1 instead. Die Variante wäre wohl
selbst mit einer Stunde auf der Uhr kaum zu finden, daher kann ich nur
vermuten, dass ich stattdessen 32.Kc1 spielen würde.}) 32. Qc2 $1 {Now it's
almost game over. Jetzt ist die Sache fast gelaufen.} Qxc4 33. Re8+ Kh7 $5 (
33... Rxe8 34. Rxe8+ Kh7 35. Rh8+ $1 Kxh8 36. Bxg7+ {must have been a tactic
Magnus missed from afar. The move in the game almost works but ... muss ein
taktischer Trick gewesen sein, den Magnus von weitem übersah. Der Zug in der
Partie funktioniert beinahe, aber ...}) 34. Rxb8 Qxd5+ (34... Bxf3+ 35. Kc1 $5
{The simplest, relying on the same trick: Am einfachsten, im Vertrauen auf
denselben Trick:} Nd3+ 36. Kb1 Nxe1 37. Rh8+ $1) 35. Qd2 $1 $18 (35. Kc1 {
Amazingly Black holds after this: Danach hält sich Schwarz
überraschenderweise:} Nd3+ 36. Kb1 Nxe1 37. Qe4 (37. Bxe1 Qe5 $1) 37... Qd1+
38. Ka2 Nd3 $11 {and White has nothing e.g. und Weiß hat nichts, z.B.} 39. f6+
g6 40. Rh8+ Kxh8 41. Qe8+ Kh7 42. Qxf7+ Kh6 43. Qg7+ Kg5 44. f7 Qxa4+ 45. Kb1
Qb3+ 46. Ka1 $11) 35... Bxf3+ 36. Kc1 $18 {With the extra rook and exchange
the win should be quite easy. I managed to complicate my task a bit, but the
result was never really in doubt. Mit Turm und Qualität mehr sollte der
Gewinn recht leicht sein. Ich schaffte es, meine Aufgabe ein wenig zu
komplizierten, aber das Resultat war nie wirklich in Zweifel.} Qxf5 37. Re3
Ne2+ 38. Kb2 Nxc3 39. Qxc3 Qf4 40. Qd3+ (40. Qe5 $1 $18) 40... f5 41. Rf8 Qb4+
42. Kc1 Be4 43. Qb3 Qd4 44. Qc3 Qd6 45. Rf7 Qg6 46. Rd7 Qg1+ 47. Kb2 c4 {
Magnus defends creatively, but the position is just too winnable even for +10s
increment.  Magnus verteidigt kreativ, aber die Stellung ist einfach selbst
für +10 Sekunden Inkrement zu gewonnen.} 48. Rxe4 $5 {If you exchange
something, you wouldn't blunder it later :) Wenn man etwas tauscht, stellt man
es später nicht ein :)} fxe4 49. Rd4 Qf2+ 50. Qd2 c3+ 51. Kxc3 Qg3+ 52. Kb2
Qxh3 53. Rxe4 Qg3 54. Qd4 Qg2+ 55. Kc3 Qf3+ 56. Kb4 Qf8+ 57. Ka5 Qf5+ 58. Kxa6
g5 59. a5 (59. Re7+ Kg6 60. Qg7+ Kh5 61. Qh7+ Qxh7 62. Rxh7+ Kg6 63. Rh8 Kg7
64. Rd8 $18 {would have been winning as well, but there was no point in
relying on calculation at this point. hätte ebenfalls gewonnen, aber an
dieser Stelle hatte es keinen Sinn, sich auf Berechnung zu verlassen.}) 59...
h3 60. Re7+ Kg6 61. Qg7+ Kh5 62. Qh7+ Kg4 63. Re4+ {A nerve-wracking game, but
I was on the happy side of it this time. It felt great to be the one to break
Carlsen's record of not-losing in classical time control for 125 games and 801
days (or 802 nobody knows for sure) :) From this place I would like to say
thank you to all of my supporters, and to the ones who contributed to this
success. Eine nervenaufreibende Partie, aber diesmal saß ich auf der
Sonnenseite. Es war ein tolles Gefühl, derjenige zu sein, der Carlsens Rekord
von 125 ungeschlagenen Partien bei klassischer Bedenkzeit in 801 Tagen (oder
802, weiß keiner ganz genau :)) gebrochen hatte. Von dieser Stelle aus
möchte ich mich bei allen meinen Fans bedanken und denjenigen, die zu diesem
Erfolg betrugen.} 1-0

[Event "FIDE World Cup"]
[Site "Krasnaya Polyana"]
[Date "2021.07.27"]
[Round "5.3"]
[White "Duda, Jan Krzysztof"]
[Black "Grischuk, Alexander"]
[Result "1-0"]
[ECO "C65"]
[WhiteElo "2738"]
[BlackElo "2778"]
[PlyCount "127"]
[EventDate "2021.07.12"]
[EventType "k.o."]
[EventRounds "8"]
[EventCountry "RUS"]
[SourceTitle "CBM 203"]
[Source "ChessBase"]
[SourceDate "2021.08.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.08.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Bxc6 dxc6 6. Nbd2 Nd7 7. Nc4 f6 8.
Be3 Bxe3 9. Nxe3 Nc5 10. O-O O-O 11. Kh1 a5 12. a4 Be6 13. Qe1 Bf7 14. Nh4 Ne6
15. g3 Qd6 16. f4 Qc5 17. Qd2 Rfd8 18. Rf2 Rd7 19. Raf1 b6 20. b3 Rad8 21. Nhf5
Bg6 22. fxe5 Qxe5 23. Nc4 Qc5 24. g4 Ng5 25. Qe1 Re8 26. h4 Nf7 27. Nfe3 h6 28.
Rf4 Ne5 29. Qg3 Nxc4 30. Nxc4 b5 31. Ne3 Qe5 32. Qe1 Qc5 33. R1f3 bxa4 34. bxa4
Rd4 35. Qa1 Rb8 36. Kg2 Rdb4 37. Qa2+ Bf7 38. Qa3 Be6 39. Rg3 Qe5 40. Rf2 c5
41. g5 fxg5 42. hxg5 h5 43. Nf5 Rb1 44. Rgf3 Ra1 45. d4 Rxa3 46. Ne7+ Kh7 47.
dxe5 Rxf3 48. Rxf3 Rb4 49. g6+ Kh6 50. Nf5+ Kxg6 51. Rg3+ Kf7 52. Rxg7+ Kf8 53.
Rg6 Bf7 54. Rf6 Rb6 55. Kf3 Rxf6 56. exf6 Be8 57. e5 Kf7 58. Kf4 Bxa4 59. Nh6+
Ke6 60. f7 Ke7 61. e6 Be8 62. Nf5+ Kf8 63. fxe8=Q+ Kxe8 64. Ke5 1-0

[Event "FIDE World Cup"]
[Site "Krasnaya Polyana"]
[Date "2021.08.03"]
[Round "7.4"]
[White "Carlsen, Magnus"]
[Black "Duda, Jan Krzysztof"]
[Result "0-1"]
[ECO "B52"]
[WhiteElo "2847"]
[BlackElo "2738"]
[Annotator "Shah, Sagar"]
[PlyCount "148"]
[EventDate "2021.07.12"]
[EventType "k.o."]
[EventRounds "8"]
[EventCountry "RUS"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

{This was the Semi-Finals of the World Cup 2021. The first two games in the
Classical segment had ended in draws. The first rapid game of 25+10 had also
ended in a draw. This was the 2nd rapid game and Magnus having the white
pieces was naturally quite ambitious.} 1. e4 c5 2. Nf3 d6 3. Bb5+ {This is a
typical Carlsen move where he doesn't go into deep and sharp theoretical lines
of the open Sicilian, rather with Bb5+ he is able to keep the game in
positional territory and at the same time keep pressure on his opponent.} (3.
d4) 3... Bd7 {Duda's main aim in the game as he explains on ChessBase India
was to exchange as many pieces as he could and keep the game simple. A draw in
this game was a good result for him.} 4. Bxd7+ Qxd7 5. O-O Nf6 6. Qe2 (6. Re1 {
is the main move in the position. Qe2 is the second most popular.}) 6... Nc6 7.
c3 e6 {A standard idea to meet d4 by White with cxd4 cxd4 and d5.} (7... e5 {
is a move that you would like to play in order to stop d4. However, you cannot
nip that move in the bud for long. White goes} 8. Rd1 $14 {and d4 is coming up.
}) (7... O-O-O) 8. d4 cxd4 9. cxd4 d5 (9... e5 $2 {is a positional error
because you want to place the pawns on the opposite colour of your bishop on
f8 and not on the same colour.}) 10. e5 Ne4 (10... Ng8 {is also possible here.
It seems like an undeveloping move, but the idea is to reroute the knight to
f5 via e7.} 11. Nc3 Nge7 12. Be3 Nf5 $11) 11. Nbd2 Nxd2 12. Bxd2 Bb4 $5 {
Following the strategy of exchanging pieces. This is an interesting moment in
the game. On one hand Black has the better bishop because the central pawns
are not on the same colour as the bishop here. On the other hand, Black is low
on space and exchange of pieces is to his advantage.} (12... Be7 {Duda made an
important point here. He said that a few years ago, this position would have
been round about even or even slightly better for Black. But in recent years,
space advantage has assumed more importance for the engines. The fact that
Magnus Carlsen has played this opening in such an important game shows his
trust in this position as White.}) 13. Bf4 (13. Bxb4 Nxb4 $11) 13... O-O 14.
Qd3 Be7 {Getting ready to chop off the knight on g5 and also clearing the b4
square for the knight.} 15. a3 (15. Ng5 Bxg5 16. Bxg5 Rac8 $11) 15... Rac8 16.
g3 {Magnus's plan starts to become clear. He wants to play h4, Kg2, switch his
rook to h1 and launch an attack on Black's king with Ng5 ideas. For Duda, the
problem is that his position looks very nice on the surface, but he needs to
come up with a concrete plan for activity.} Na5 17. b3 {Stopping Nc4.} Qc6 18.
Bd2 {The knight on a5 is attacked and has to be defended.} Qb6 19. Rfb1 {
This looks slightly uncomfortable, but moving your pawn to b4 is not a great
idea as it gives up the c4 square and Rab1 loses the a3 pawn.} a6 {This is
part of Duda's plan. As we will see, this move is useful to play Qb5 in future
to dislodge the strong queen on d3.} 20. Kg2 Nc6 21. Re1 {Magnus realized that
Duda wants to offer a queen trade with Qb5, that's the reason why cleared the
b1 square.} (21. a4 {Trying to stop Qb5 gives up the b4 square.} Nb4 $15) 21...
Qb5 $1 (21... f6 {is not a good move in the position. You shouldn't be
touching your pawns on the kingside if not provoked.} 22. exf6 Rxf6 23. Ng5 $1
$18) (21... Na5 22. Red1 $5 Qxb3 (22... Nxb3 23. Rab1 $18) 23. Bxa5 $18) 22.
Qb1 (22. Qxb5 axb5 $15 {is a very pleasant position for Black as the pawn on
a3 is weak.}) 22... Rc7 23. h4 Rfc8 24. Ra2 (24. Ng5 Bxg5 25. hxg5 Nxd4 $19) (
24. Be3 Na5 $17) (24. Rh1 {was possible.}) 24... a5 $5 {Duda tries to be
slightly more ambitious here. If White goes a4, then Black gets the b4 square.
Otherwise Black will go a4 and try to fix the weakness on a3 and get the c4
square for himself.} (24... Qb6 25. Rd1 $5 (25. Qd3 Qb5 26. Qb1 $11) 25... Nxd4
$2 26. Be3 $18) (24... Na5 $5 {was perhaps the strongest move in this position.
} 25. Ng5 $5 (25. Re3 Nc4 $19) (25. Bxa5 Qxa5 $15) 25... g6 $13 (25... Bxg5 26.
a4 (26. hxg5 Nxb3 $15) 26... Qb6 (26... Qxb3 27. Bxa5 $18) 27. hxg5 $16)) 25.
Rh1 a4 26. b4 $6 (26. Ng5 $5 Bxg5 27. hxg5 g6 28. bxa4 Qxa4 29. Rh4 Nxd4 30.
Be3 Rc4 31. Qxb7 $13) 26... h6 27. Be3 $2 {This move is akin to accepting an
inferior position.} (27. g4 {This does look too risky, but White has to
unleash himself on the kingside.}) 27... Na7 $1 {The knight is going to b5
where it will attack the a3 pawn as well as the c3 square.} (27... f6 $2 28.
Qg6 $1 $18) (27... f5 28. exf6 Bxf6 29. Ng5 $1 hxg5 30. hxg5 $18) 28. Bd2 Qe2
$5 29. Re1 {Duda was happy that he was able to distract the rook from h1 and
bring it to e1.} Qc4 $5 {Duda's idea is to play Qb3 to offer a trade of queens.
} (29... Qa6 $1 {This was a better square for the queen, so as to keep the
c-file open.}) 30. Re3 {Magnus stops it.} Nb5 31. Rd3 {Defending the d4 pawn.}
Rc6 $1 {A well-thought out move. The idea is to open up the d8-b6 diagonal
from where the bishop will attack the d4 pawn.} 32. Rb2 Bd8 $1 (32... f5 {
is possible, but after} 33. exf6 Bxf6 34. Bf4 $13 {The position is unclear.})
33. g4 Bb6 34. Be3 Nc3 35. Qf1 Qb5 36. Rc2 Ne4 37. Rxc6 (37. Rc5 $1 {Magnus
thought for a bit before executing his move Rxc6, and that's when Duda saw
that Rc5 is also possible. Although this move does not change the evaluation
of the position - black is still better. However, it does make Black's task
quite difficult.} Bxc5 (37... Qa6 38. b5 $18) 38. dxc5 R6c7 39. Nd4 Qc4 40. f3
Nc3 $17) 37... Rxc6 38. Rd1 Rc4 (38... Qxf1+ 39. Kxf1 Rc3 {was the better way
to play for Black. However, Duda mentions that he was slightly worried about}
40. Rc1 Rxa3 41. Rc8+ Kh7 $19 {and that White rook could get very active here.
Ghosts as they say!}) 39. Nd2 Nxd2 40. Rxd2 Qc6 41. Qe2 $1 {The point of this
move is to play g5 when h5 won't be possible.} Rc3 42. Ra2 $2 {This is just
too passive.} (42. g5 $1 {Good or bad Magnus had to go for this.} h5 43. Qxh5
$16) 42... Bd8 $1 (42... Qc4 43. Qxc4 Rxc4) 43. g5 hxg5 44. hxg5 Qc4 {The
other drawback of Ra2 is that now White cannot go Qg4 as the rook on a2 is
hanging.} 45. Qxc4 (45. Qd2 Bb6 $19) 45... dxc4 (45... Rxc4 $19 {With the king
coming to g6, this position is lost for White. But when you are playing a game
which is of great importance, sometimes you just want to be extra sure that
you are winning and hence, your conversion is not the smoothest.}) 46. d5 $5 {
interesting practical attempt by the World Champion.} exd5 47. Rd2 Rd3 $2 (
47... Rxa3 48. Rxd5 Rd3 $1 {This move was missed by Duda.}) 48. Rxd3 cxd3 49.
f4 Kf8 $2 {A crucial loss of tempo.} (49... f6 $1 {One first glance it might
not be clear as to white this move is so strong. The main idea is to break the
kingside pawn structure for White and also fight for the h8-a1 diagonal.} 50.
gxf6 (50. exf6 gxf6 51. gxf6 (51. Kf2 fxg5 52. fxg5 Kg7 53. Ke1 Kg6 54. Kd2
Bxg5 55. Bxg5 Kxg5 56. Kxd3 Kf5 57. Kd4 Ke6 $19) 51... Bxf6 $19) (50. Kf3 fxe5
51. fxe5 Kf7 $19) 50... gxf6 51. e6 f5 $19) (49... d4 $2 50. Bd2 $11) (49...
Bb6 $2 50. Kf3 $11) (49... Kh7 {was also winning.} 50. f5 (50. Kf3 Kg6 51. Kg4
b5 52. f5+ Kh7 53. Kf3 Kg8 54. Kf2 Bc7 55. Bf4 f6 $1 $19) 50... g6 $1 51. f6
Bc7 $19) 50. Kf3 $2 {It's difficult to imagine that a move like Kf3 is a
mistake, when Kf2 and Kf1 both draw. But the small point here is that the king
will not be able to come to d2 quickly to win the d3 pawn from f3, while from
f2 or f1 it can quickly move to d2 and win.} (50. Kf2 $1 f6 51. exf6 (51. gxf6
$2 gxf6 52. exf6 Bxf6 $19) 51... gxf6 52. Ke1 $1 fxg5 53. fxg5 Kg7 54. Kd2 Kg6
55. Kxd3 $11 {And you realize that losing an important move with Kg8-f8 leads
to Black being unable to win this position.}) (50. Kf1 $1) 50... Ke7 $2 (50...
f6 $1 {As White has not made progress to move towards the d2 square, so Black
can exploit this with ...f6!} 51. Bc5+ Kf7 52. gxf6 gxf6 53. Ke3 fxe5 54. fxe5
Ke6 55. Kxd3 Kxe5 $19) 51. Bc5+ Ke6 52. Ke3 Kf5 53. Kxd3 $1 {This is where
Duda realized that he had botched it up. Because now taking on f4 is
impossible because of g6!} g6 (53... Kxf4 $2 54. g6 $1 f5 (54... fxg6 55. e6
$18) 55. e6 Kg5 56. e7 Bxe7 57. Bxe7+ Kxg6 {White should be winning here. But
in worst case, he cannot be losing!}) 54. Be3 {The position is now drawn.} Bc7
55. b5 $6 {Magnus is trying to be active, but with this move he exposes his a3
pawn and also gives the black bishop a square on a5.} (55. Bc5 $5 Kxf4 $4 (
55... Bb8 $11) 56. Bd6 $1 Bd8 57. e6+ $18) (55. Bd2 $11) 55... Bd8 56. Kd4 Bb6+
57. Kd3 Bd8 (57... Bxe3 58. Kxe3 d4+ 59. Kxd4 Kxf4 60. Kc5 Kxg5 $1 (60... Kxe5
61. Kb6 $18) 61. Kb6 Kf5 62. Kxb7 g5 63. b6 g4 64. Ka6 g3 65. b7 g2 66. b8=Q
g1=Q $11) 58. Kd4 Be7 59. Bc1 Ke6 60. Bb2 Bd8 61. Kc5 Ba5 62. Bc1 $2 {A big
lapse by Magnus.} (62. Bd4 $11) 62... Bc3 $1 {Duda finds the winning move. But
as he mentions, he hadn't seen the key idea here. He just saw this was the
right move and made it.} 63. b6 (63. Kb6 d4 64. Kxb7 d3 65. b6 d2 66. Bxd2 Bxd2
67. Ka7 Bxf4 68. b7 Bxe5 $19 {Black wipes out all the pawns and also stops the
pawn on b7 from queening.}) 63... d4 64. Kc4 Kd7 65. Be3 Bb2 $1 (65... Ke6 {
also wins but Black needs to be very accurate.} 66. Bxd4 Bd2 $1 (66... Bxd4 67.
Kxd4) 67. Kb5 Bxf4 68. Kxa4 Kd5 69. Bb2 Kc4 $19) (65... dxe3 $2 {White wins
after this.} 66. Kxc3 Kc6 67. Kd3 Kxb6 68. f5 $1 $18) 66. Bxd4 Bxa3 67. Be3 Bb2
68. Kb4 a3 69. Kb3 Ke6 70. Ka2 Kd5 {The rest is easy. Duda comes in with his
king, the pawn on a3 stops the white king from activating itself and the
bishop cleans up the remaining pawns.} 71. Kb3 Ke4 72. Bd2 Bd4 73. Kxa3 Bxb6 (
73... Be3 $2 {It is never to late to blunder and lose!} 74. Bxe3 Kxe3 75. f5
$18) 74. Kb4 Bf2 {With the bishop coming to g3, Magnus is going to lose all
his pawns. He resigned here. Duda won this game and he calls this duel as the
most significant game of his career, as with this win he not only moved to the
finals of the World Cup 2021, but also qualified for the Candidates 2022.} 0-1

