[Event "83rd Tata Steel Masters 2021"]
[Site "Wijk aan Zee"]
[Date "2021.01.30"]
[Round "12.1"]
[White "Wojtaszek, Radoslaw"]
[Black "Carlsen, Magnus"]
[Result "1/2-1/2"]
[ECO "D46"]
[WhiteElo "2705"]
[BlackElo "2862"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2021.01.16"]
[EventType "tourn"]
[EventCountry "NED"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,69,28,0,18,-7,0,0,31,-5,-7,-6,-10,-15,-13,-7,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 e6 3. Nf3
c6 4. e3 Nf6 5. Nc3 Nbd7 6. Qc2 Bd6 7. Bd3 O-O 8. O-O dxc4 9. Bxc4 Qe7 10. a3
a6 {D46: Semi-Slav: 5 e3 Nbd7 6 Bd3, Black avoids the Meran.} 11. h3 b5 12. Be2
{[#]} Re8 $146 ({Predecessor:} 12... c5 13. dxc5 Bxc5 14. b4 Bd6 15. Ne4 Bb7
16. Nxd6 Qxd6 17. Bb2 Rac8 18. Qb3 Bd5 {0-1 (32) Suvorov,A (2313)-Vasquez
Schroder,R (2441) chess.com INT 2020}) 13. Ng5 (13. e4 $5 {[%cal Re4e5]} e5 14.
Rd1 $11) 13... c5 {The position is equal.} 14. dxc5 Nxc5 15. b4 Ncd7 16. Nce4
Nxe4 17. Nxe4 ({But not} 17. Qxe4 $2 Qxg5 18. f4 Qf6 $19) 17... Be5 18. Bb2
Bxb2 19. Qxb2 Bb7 20. Bd3 Rac8 21. Rfc1 Bxe4 22. Bxe4 Nb6 23. Bd3 g6 24. Rxc8
Rxc8 25. Rc1 Rc7 26. g3 Rxc1+ 27. Qxc1 Qd6 28. Be2 Nc4 29. Bxc4 Qc6 {[%mdl 64]
[#] Pin} 30. Qc3 bxc4 31. Kf1 Qh1+ 32. Ke2 Qb1 33. Qxc4 Qb2+ 34. Kf3 Qxa3 35.
b5 {A rather calm draw.  Weighted Error Value: White=0.04/Black=0.02} 1/2-1/2

[Event "83rd Tata Steel Masters 2021"]
[Site "Wijk aan Zee"]
[Date "2021.01.30"]
[Round "12.2"]
[White "Grandelius, Nils"]
[Black "Tari, Aryan"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2663"]
[BlackElo "2625"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2021.01.16"]
[EventType "tourn"]
[EventCountry "NED"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,60,0,6,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,51,0,0,0,35,56,46,53,58,73,
56,78,70,57,66,75,63,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6
5. d4 exd4 6. e5 d5 7. Bb5 Ne4 8. cxd4 Bb6 9. Nc3 O-O 10. Be3 {C54: Giuoco
Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} Bg4 11. h3 Bh5 12. Qc2 Ba5 13.
O-O Bxf3 14. gxf3 Nxd4 15. Bxd4 Qg5+ $1 16. Kh1 Bxc3 17. Bxc3 Qf5 {[#] ...
Ng3+! is the strong threat.} 18. Rfc1 Qxh3+ 19. Kg1 Ng5 {[%cal Rg5f3]} 20. Be2
{[#]} Qh4 $146 {aiming for ...Nh3+.} ({Predecessor:} 20... Nxf3+ 21. Bxf3 Qxf3
22. Qd1 Qe4 23. Bd4 a5 24. Rxc7 Ra6 25. f3 Rg6+ 26. Kf1 Qh4 {1/2-1/2 (59)
Nguyen,T (2548)-Dragnev,V (2521) Radenci 2019}) 21. Bd2 Nh3+ 22. Kg2 Qxf2+ 23.
Kxh3 Qxe2 24. Kg3 Qxe5+ 25. Bf4 Qf6 26. Qxc7 Rae8 27. Qxb7 (27. Re1 $14) 27...
Qg6+ $11 {The position is equal.} 28. Kf2 $1 Qf6 29. Kg3 Qg6+ 30. Kf2 $1 Qf6 {
Weighted Error Value: White=0.04/Black=0.02} 1/2-1/2

[Event "83rd Tata Steel Masters 2021"]
[Site "Wijk aan Zee"]
[Date "2021.01.30"]
[Round "12.3"]
[White "Caruana, Fabiano"]
[Black "Anton Guijarro, David"]
[Result "1/2-1/2"]
[ECO "D39"]
[WhiteElo "2823"]
[BlackElo "2679"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2021.01.16"]
[EventType "tourn"]
[EventCountry "NED"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,100,11,14,18,37,12,24,4,41,-11,-3,-6,-7,-22,-20,-18,-10,-7,-8,-29,
-18,-18,-19,-26,0,-22,0,-12,14,14,16,12,15,12,19,19,22,23,27,0,0,0,0,-5,0,0,0,
0,0,-19,-19,-20,-5,-8,-8,-7,0,-49,0,-11,0,-52,-44,-33,-37,-41,-43,-35,-17,-25,
-10,-54,-55,-55,-48,-41,-44,-38,-4,-4,-5,-8,-4,-2,0,-6,0]} 1. d4 Nf6 2. c4 e6
3. Nf3 d5 4. Nc3 dxc4 5. e4 Bb4 6. Bg5 h6 7. Bxf6 Qxf6 8. Bxc4 c5 9. O-O {
D39: Queen's Gambit Declined: Ragozin Defence with 5 Bg5 dxc4.} cxd4 {[#]} 10.
e5 $1 {10.e5 scores better than 10.Nb5.} Qd8 11. Ne4 {White has an edge.} O-O {
[#]} 12. Qc1 $146 ({Better is} 12. Rc1 $14) ({Predecessor:} 12. Qd3 Be7 13.
Rfe1 Nc6 14. Rad1 Qc7 15. Ng3 Nb4 16. Qe2 d3 17. Qe4 b5 18. Bxd3 Nxd3 19. Qxd3
{1/2-1/2 (47) Nepomniachtchi,I (2784)-Ding,L (2791) chess24.com INT 2020})
12... Qc7 13. Nf6+ Kh8 (13... gxf6 $2 14. exf6 Nd7 15. Qxh6 $18) 14. Rd1 Nd7
15. Rxd4 Be7 $1 ({Wrong is} 15... Nxe5 $2 {[#]} 16. Rh4 $1 $18) 16. Qf4 Bc5 17.
Qe4 {[%csl Gf6][%cal Re4h7]} Nxf6 ({But not} 17... gxf6 $6 18. Qh4 $16) 18.
exf6 gxf6 19. Rdd1 f5 20. Qe2 Be7 21. Rac1 Bf6 22. Qd2 Kg7 {[#]} 23. Bxe6 $1
Qb6 24. Bb3 {Qf4 is the strong threat.} Be6 25. Bxe6 Qxe6 26. Nd4 Qe4 {
Strongly threatening ...Rfd8.} 27. Nb5 Rad8 28. Nd6 Qe6 29. Qb4 Rd7 30. Nc4 $1
Bd4 31. Re1 Qf6 32. Qb3 Rc8 33. a4 Rc5 34. Rc2 Qh4 35. g3 Qf6 36. Rce2 f4 37.
Nd2 $1 {[%cal Rd2e4] aiming for Ne4.} Rf5 {Threatens to win with ...fxg3.} ({
Not} 37... Bxb2 $2 38. Ne4 $18) 38. Ne4 (38. Kg2 $11) 38... Qg6 $1 $15 {
And now ...f3 would win.} 39. Qf3 $1 fxg3 40. Qxg3 Bb6 41. Kf1 Kh7 42. Rc1 Rd4
43. Qxg6+ Kxg6 44. b3 Rf3 45. Rc8 Kg7 46. Ng3 $1 Rd8 47. Rxd8 {The position is
equal.} Bxd8 48. b4 Ra3 49. a5 Ra4 50. Re4 b6 {Weighted Error Value: White=0.
08/Black=0.06} 1/2-1/2

[Event "83rd Tata Steel Masters 2021"]
[Site "Wijk aan Zee"]
[Date "2021.01.30"]
[Round "12.4"]
[White "Giri, Anish"]
[Black "Firouzja, Alireza"]
[Result "1/2-1/2"]
[ECO "C11"]
[WhiteElo "2764"]
[BlackElo "2749"]
[Annotator "RC"]
[PlyCount "134"]
[EventDate "2021.01.16"]
[EventType "tourn"]
[EventCountry "NED"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/6000+30:20/3000+30:900+30"]

1. e4 {[%emt 0:00:00]} e6 {[%emt 0:00:01]} 2. d4 {[%emt 0:00:00]} d5 {[%emt 0:
00:24]} 3. Nc3 {[%emt 0:00:05]} Nf6 {[%emt 0:00:23]} 4. e5 {[%emt 0:00:37]}
Nfd7 {[%emt 0:00:07]} 5. f4 {[%emt 0:00:05]} c5 {[%emt 0:00:08]} 6. Nf3 {
[%emt 0:00:03]} Nc6 {[%emt 0:00:14]} 7. Be3 {[%emt 0:00:06]} a6 {[%emt 0:00:38]
} 8. a3 {[%emt 0:02:07]} cxd4 {[%emt 0:04:03]} 9. Nxd4 {[%emt 0:00:10]} Bc5 {
[%emt 0:00:07]} 10. Qd2 {[%emt 0:06:06]} O-O {[%emt 0:04:24]} 11. Be2 {[%emt 0:
01:14]} Qc7 {[%emt 0:12:15]} 12. O-O {[%emt 0:05:34]} b6 {[%emt 0:03:31]} 13.
Nxc6 {[%emt 0:19:28]} Qxc6 {[%emt 0:00:41]} 14. b4 {[%emt 0:09:48]} Bxe3+ {
[%emt 0:12:41]} 15. Qxe3 {[%emt 0:00:05]} Bb7 {[%emt 0:01:48]} 16. Bd3 {
[%emt 0:01:07]} d4 {[%emt 0:07:37]} 17. Qe4 {[%emt 0:04:27]} Qxe4 {[%emt 0:02:
30]} 18. Nxe4 {[%emt 0:02:15]} Bd5 {[%emt 0:07:17]} 19. Ng5 {[%emt 0:08:23]} g6
{[%emt 0:17:06]} 20. Nf3 {[%emt 0:09:44]} Bxf3 {[%emt 0:00:59]} 21. Rxf3 {
[%emt 0:00:14]} b5 {[%emt 0:00:12]} 22. Be4 {[%emt 0:06:00]} Rad8 {[%emt 0:00:
45]} 23. Rd3 {[%emt 0:07:43]} Nb6 {[%emt 0:04:00]} 24. Bb7 {[%emt 0:04:38]} Na4
{[%emt 0:05:37]} 25. Bxa6 {[%emt 0:04:43]} Nc3 {[%emt 0:00:50]} 26. Bb7 {
[%emt 0:02:20]} Ne2+ {[%emt 0:00:13]} 27. Kf2 {[%emt 0:00:38]} Nxf4 {[%emt 0:
00:07]} 28. Rd2 {[%emt 0:00:09]} d3 {[%emt 0:04:56]} 29. c3 {[%emt 0:08:20]}
Ne2 {[%emt 0:08:26]} 30. Ke3 {[%emt 0:00:08]} Nxc3 {[%emt 0:00:38]} 31. Rxd3 {
[%emt 0:00:07]} Rxd3+ {[%emt 0:01:43]} 32. Kxd3 {[%emt 0:00:04]} Na4 {[%emt 0:
00:14]} 33. Rc1 {[%emt 0:01:05]} Rd8+ {[%emt 0:02:01]} 34. Ke2 {[%emt 0:00:26]}
Kg7 {[%emt 0:00:48]} 35. Bc6 {[%emt 0:02:34]} Rb8 {[%emt 0:00:20]} 36. Rc2 {
[%emt 0:00:54]} Kf8 {[%emt 0:05:50]} 37. Kd2 {[%emt 0:01:25]} Ke7 {[%emt 0:00:
26]} 38. Kc1 {[%emt 0:01:03]} f6 {[%emt 0:03:44]} 39. exf6+ {[%emt 0:00:28]}
Kxf6 {[%emt 0:00:09]} 40. Kb1 {[%emt 0:00:00]} Ke5 {[%emt 0:00:00]} 41. Ka2 {
[%emt 0:02:21]} Kd4 {[%emt 0:13:02]} 42. Kb3 {[%emt 0:00:39]} Kd3 {[%emt 0:05:
08]} 43. Rf2 {[%emt 0:04:52]} e5 {[%emt 0:03:52]} 44. Rf7 {[%emt 0:03:42]} Nb6
{[%emt 0:09:12]} 45. Bxb5+ {[%emt 0:02:18]} Kd4 {[%emt 0:01:13]} 46. a4 {
[%emt 0:03:27]} Nd5 {[%emt 0:02:56]} 47. Rxh7 {[%emt 0:05:18]} e4 {[%emt 0:00:
28]} 48. Rf7 {[%emt 0:10:35]} e3 {[%emt 0:04:54]} 49. Rf1 {[%emt 0:00:31]} Nc3
{[%emt 0:00:36]} 50. Rf4+ {[%emt 0:05:13]} Ke5 {[%emt 0:00:40]} 51. Rf3 {
[%emt 0:01:36]} Nxb5 {[%emt 0:02:11]} 52. Rxe3+ {[%emt 0:00:05]} Kd4 {[%emt 0:
00:06]} 53. Rg3 {[%emt 0:00:11]} Nd6 {[%emt 0:00:48]} 54. Rxg6 {[%emt 0:00:38]}
Ne4 {[%emt 0:02:08]} 55. a5 {[%emt 0:05:09]} Kd5 {[%emt 0:05:50]} 56. a6 {
[%emt 0:05:15]} Nc5+ {[%emt 0:02:26]} 57. Ka3 {[%emt 0:00:06]} Nd3 {[%emt 0:01:
01]} 58. a7 {[%emt 0:00:18]} Ra8 {[%emt 0:00:10]} 59. Rg7 {[%emt 0:00:05]} Kc6
{[%emt 0:01:37]} 60. h4 {[%emt 0:00:00]} Nf4 {[%emt 0:00:00]} 61. g4 {[%emt 0:
11:45]} Ne6 {[%emt 0:05:57]} 62. Rf7 {[%emt 0:01:12]} Nc7 {[%emt 0:00:50]} 63.
g5 {[%emt 0:00:42]} Rxa7+ {[%emt 0:01:10]} 64. Kb2 {[%emt 0:00:05]} Ra8 {
[%emt 0:06:12]} 65. g6 {[%emt 0:01:03]} Ne6 {[%emt 0:00:41]} 66. h5 {[%emt 0:
01:23]} Rh8 {[%emt 0:01:09]} 67. Rh7 {[%emt 0:02:28]} Rg8 {[%emt 0:00:50]}
1/2-1/2

[Event "83rd Tata Steel Masters 2021"]
[Site "Wijk aan Zee"]
[Date "2021.01.30"]
[Round "12.5"]
[White "Esipenko, Andrey"]
[Black "Van Foreest, Jorden"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "2677"]
[BlackElo "2671"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2021.01.16"]
[EventType "tourn"]
[EventCountry "NED"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,81,-2,8,8,5,4,12,13,13,11,11,3,0,0,9,0,0,0,0,0,0,-8,6,0,31,18,26,33,
66,0,0,-7,0,-13,-13,-69,-62,-70,-19,-23,0,0,0,0,0,-33,0,0,0,0,0,0,0,0,0,0,0,-8,
0,0,0,-7,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. Nc3 Nf6 3. Bf4 c5 4. e3 cxd4 5.
exd4 Bg4 6. f3 {B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack.}
Bd7 7. Nb5 Bxb5 8. Bxb5+ Nc6 {[%cal Bb8c6,Bc6a5,Ba5c4][%mdl 32]} 9. c3 e6 {[#]}
10. Be3 $146 ({Predecessor:} 10. Ne2 Bd6 11. Bg5 Qb6 12. a4 a6 13. Bd3 Qc7 14.
g3 Nd7 15. O-O h6 16. Be3 {0-1 (64) Miladinovic,I (2536)-Iordachescu,V (2589)
Lichess.org INT 2020}) 10... Bd6 11. f4 Qc7 12. g3 O-O 13. Nf3 Na5 14. Bd3 Nc4
15. Bc1 b5 16. O-O Ne4 17. Qe2 f5 18. b3 Nb6 19. Bd2 ({White should try} 19.
Bb2 $14) 19... a6 $11 20. Rac1 Rac8 {[%cal Ba8c8,Bc8c7,Bc7d7,Bd7d3,Bd3d1][%mdl
32]} 21. Ne5 Qe7 22. g4 (22. Rfe1 $11) 22... Nxd2 23. Qxd2 fxg4 (23... Bxe5 $15
24. fxe5 fxg4) 24. Nxg4 Qh4 25. Ne5 Rc7 26. Qe3 Bxe5 27. dxe5 d4 28. Qxd4 {
The position is equal.} Rd7 29. Qxb6 Qg4+ 30. Kh1 Rxd3 31. Qf2 Rfd8 32. Qg2 Qf5
33. Rc2 Rd1 {[#] Strongly threatening ...Rxf1+.} 34. Rcf2 h5 35. Kg1 h4 36. Qg5
Qh3 37. Qg6 Rxf1+ 38. Rxf1 Rd2 {[%csl Gd2][%cal Rh3h2] [#]} 39. Qe8+ Kh7 {
[%csl Gd2][%cal Rh3h2]} 40. Qh5+ Kg8 {[%csl Gd2][%cal Rh3h2]} 41. Qe8+ {
Weighted Error Value: White=0.08/Black=0.08} 1/2-1/2

[Event "83rd Tata Steel Masters 2021"]
[Site "Wijk aan Zee"]
[Date "2021.01.30"]
[Round "12.6"]
[White "Vachier-Lagrave, Maxime"]
[Black "Duda, Jan-Krzysztof"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2784"]
[BlackElo "2743"]
[Annotator "TA"]
[PlyCount "152"]
[EventDate "2021.01.16"]
[EventType "tourn"]
[EventCountry "NED"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,151,29,22,29,31,22,28,31,31,30,34,28,27,3,21,22,16,0,0,0,0,0,0,0,0,0,
24,16,19,18,35,14,37,0,0,0,0,0,0,0,0,0,0,-72,-2,-161,-133,-153,-81,-80,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,-28000,-28000,-28000,-28000,-28000,-28000,-28000,
-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,
-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,
-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,
-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,
-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,
-28000,-28000,-28000,-28000,-28000,-28000]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4.
Nf3 Nxe4 5. d4 d5 6. Bd3 Bf5 7. O-O Be7 8. Re1 O-O 9. c4 Nc6 10. cxd5 {C42:
Petroff Defence: 3 Nxe5 and unusual White 3rd moves.} Qxd5 11. Nc3 Nxc3 12.
bxc3 {White has an edge.} Rae8 13. Bf4 Bxd3 14. Qxd3 Bd6 15. Ng5 {[%csl Gg5]
[%cal Rd3h7] [#]} g6 $146 {[#]} ({Predecessor:} 15... f5 16. Bxd6 cxd6 17. Nh3
Ne5 18. Qg3 Ng6 19. Nf4 Nxf4 20. Qxf4 Re4 21. Rxe4 fxe4 {1/2-1/2 (38) Shirov,A
(2649)-Kuzubov,Y (2643) chess.com INT 2020}) 16. Ne4 $1 {Threatens to win with
Nf6+.} Re6 17. Nxd6 cxd6 18. Rxe6 fxe6 19. Be3 Ne5 20. Qe2 Qc4 21. Qd1 Nd7 22.
Qb3 Qxb3 23. axb3 $11 {[%mdl 4096] Endgame KRB-KRN} a6 24. c4 Rc8 25. Ra5 Kf7
26. h4 d5 27. cxd5 Rc3 28. b4 Rb3 29. dxe6+ Kxe6 30. d5+ (30. Kf1 $11 {remains
equal.}) 30... Kf7 (30... Ke5 $17) 31. g3 $2 {[#]} (31. Bd2 $11) 31... Rxb4 $19
32. d6 Nb8 (32... Ke6 $142 33. Bf4 Rb5 34. Rxb5 axb5) 33. h5 Rb5 (33... Rb1+
$17 34. Kg2 Rd1) 34. hxg6+ hxg6 35. Rxb5 axb5 $11 {KB-KN} 36. Kf1 Ke6 37. Ke2
Nd7 38. f4 Kxd6 39. g4 Kd5 40. f5 gxf5 41. gxf5 Ke4 42. Kd2 Kxf5 {Black keeps
a firm grip on the game.} (42... b4 {with more complications.} 43. Bg5 Kd4 44.
f6 Ne5 45. Kc2 Kc4) 43. Kc3 {Mate.} Ke4 44. Bg1 Kd5 45. Kb4 Kc6 46. Bf2 Ne5 47.
Bg1 Nd3+ 48. Kc3 Nf4 49. Kb4 Nd5+ 50. Kb3 Nc7 51. Kb4 Na6+ 52. Kb3 Kd6 53. Kc3
Kc6 54. Kb3 Nc5+ 55. Kb4 Nd7 56. Bf2 Nb6 57. Bg1 Nd5+ 58. Kb3 b6 59. Bf2 Kb7
60. Be1 Ka6 61. Bd2 Ne7 62. Bb4 Nc6 63. Bd2 Ne5 64. Kb4 Nd3+ 65. Kc3 Ne5 66.
Kb4 Nc6+ 67. Kb3 b4 68. Bxb4 Nxb4 69. Kxb4 {KP-K} b5 70. Kb3 Ka5 71. Ka3 b4+
72. Kb2 Ka4 73. Ka2 b3+ 74. Kb1 Ka3 75. Ka1 b2+ 76. Kb1 Kb3 {Weighted Error
Value: White=0.13/Black=0.10} 1/2-1/2

[Event "83rd Tata Steel Masters 2021"]
[Site "Wijk aan Zee"]
[Date "2021.01.30"]
[Round "12.7"]
[White "Harikrishna, Pentala"]
[Black "Donchenko, Alexander"]
[Result "1-0"]
[ECO "E20"]
[WhiteElo "2732"]
[BlackElo "2668"]
[Annotator "TA"]
[PlyCount "99"]
[EventDate "2021.01.16"]
[EventType "tourn"]
[EventCountry "NED"]
[Tiebreak "Koya+Number of wins"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,99,17,17,17,16,10,8,58,7,16,29,14,14,28,0,0,0,0,4,3,4,14,8,14,6,6,6,
6,6,6,7,18,0,0,-8,-8,-7,-2,-8,-8,-8,-8,-7,-7,-16,-9,0,0,0,0,0,0,-97,-3,-3,-10,
-79,0,0,0,0,23,15,76,76,65,0,0,0,447,441,421,355,5393,5537,5285,5277,3652,1932,
11664,6175,29995,29996,29996,29997]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5.
g3 Ne4 6. Qd3 cxd4 7. Nxd4 Bxc3+ 8. bxc3 Nc5 9. Qf3 d6 {E20: Nimzo-Indian: 4
g3 and 4 f3.} 10. Bg2 Nbd7 11. O-O O-O {The position is equal.} 12. Nb3 (12.
Rd1 $14) 12... Qc7 13. Rd1 {[#]} Nb6 $146 ({Predecessor:} 13... Ne5 14. Qf4 Na4
15. c5 Nxc5 16. Ba3 Re8 17. c4 Rb8 18. Nxc5 dxc5 19. Bb2 f6 {1-0 (47)
Moiseenko,A (2628)-Donchenko,A (2615) Riga 2019}) 14. Nxc5 Qxc5 15. Be3 Qc7 16.
Bxb6 axb6 17. Qd3 Rd8 18. a4 Ra5 19. Rdb1 Bd7 20. Rb4 Bc6 21. Qd4 Bxg2 22. Kxg2
Rc5 23. Rab1 h6 24. Qd3 Rc6 25. a5 bxa5 26. Rxb7 Qc8 27. Qf3 Rf8 28. Rb8 Qd7
29. R1b7 Rc7 30. Rxf8+ Kxf8 $11 {[%mdl 4096] Endgame KQR-KQR} 31. Rb8+ (31. c5
{with more complications.} dxc5 32. Rb8+ Ke7 33. Rg8 g5 34. Qa8) 31... Ke7 32.
Rg8 $1 Qc6 33. e4 g6 34. Qe3 (34. c5 $11) 34... g5 (34... Qxc4 $17 {With the
idea ...g5.} 35. h4 e5) 35. h4 $1 {[%cal Rh4g5]} Qc5 {[#] Threatens to win
with ...Qxe3.} (35... Qxc4 $2 36. hxg5 h5 37. Qf4 $18) 36. Qf3 (36. Qd2 $11)
36... Qe5 ({Black should try} 36... gxh4 $17 37. Qg4 hxg3 38. Qh4+ f6 39. Rxg3
(39. Qxg3 Kd7 $17) 39... Qxc4 40. Rg7+ Kd8 41. Qxf6+ Kc8) 37. hxg5 hxg5 38. Ra8
Qc5 ({And not} 38... Rxc4 39. Ra7+ Kd8 40. Qxf7 Qxe4+ 41. Kh2 Qh4+ 42. Kg1
Qxg3+ 43. fxg3 Rc7 44. Qxc7+ Ke8 45. Qe7#) 39. Qh5 {aiming for Qh8.} Ra7 {[#]}
(39... Qxc4 $11 {remains equal.} 40. Qxg5+ {[%mdl 64] Double Attack} Kd7) 40.
Rg8 $1 $40 {[%cal Rg8g7][%mdl 128] Rg7! is the strong threat. White is out for
blood.} Qe5 41. Qg4 (41. f3 $1 $14 Qf6 42. Rxg5) 41... a4 $11 42. Rxg5 Qf6 {
[%mdl 8192]} (42... Qxc3 $11 {and Black has nothing to worry.} 43. Rg8 Qxc4)
43. c5 $18 dxc5 44. Rxc5 a3 $2 (44... Qh8 45. Rb5 Rd7 46. Qg5+ f6) 45. e5 Qh8
46. Qb4 {White wants to mate with Rc7+!} ({Less strong is} 46. Qg5+ f6 $18)
46... Qa8+ 47. Kh2 {White threatens Rc7+! and mate.} Ke8 48. Rb5 {Rb8+ would
kill now.} Qc6 49. Rb8+ Kd7 50. Qd4+ {[%mdl 64] Double Attack.  Weighted Error
Value: White=0.15/Black=0.52} 1-0

