Here is few example games generated.
[pgn][Event "Chess Olympiad"]
[Site "Istanbul TUR"]
[Date "2012.09.06"]
[Round "9.1"]
[White "Hikaru Nakamura"]
[Black "Vladimir Kramnik"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "2778"]
[BlackElo "2797"]
[Annotator "Stockfish 020316 64 BMI2 (60m)"]
[PlyCount "159"]
[EventDate "2012.08.28"]
{D79: Fianchetto Grünfeld: Symmetrical Variation (6 0-0 c6 7 cxd5 cxd5)} 1. Nf3
Nf6 2. g3 g6 3. Bg2 Bg7 4. c4 c6 5. d4 d5 6. cxd5 cxd5 7. Nc3 Ne4 8. Qb3 Nxc3
9. bxc3 O-O 10. Nd2 e6 11. e4 Nc6 12. O-O Na5 13. Qd1 Qc7 14. Qf3 b6 15. Ba3
Rd8 {last book move} 16. e5 {White gains space} Ba6 17. Rfe1 Rac8 18. Bb4 Bh6 {
Black threatens to win material: Bh6xd2} 19. Qd1 Nc6 20. Ba3 Na5 21. Bb4 Nc6
22. Ba3 Na5 {Twofold repetition} (22... Qd7 23. h4 $11) 23. Nb1 (23. Bb4 Qd7
$11) 23... b5 (23... Qd7 24. Bb4 $11) 24. h4 (24. Bb4 Nc4 $11) 24... Nc6 (24...
Nc4 25. Bc5 $11) 25. Bc5 Qb8 (25... Bg7 26. Bd6 Rxd6 27. exd6 Qxd6 28. Bf1 $11)
26. Qe2 $14 Na5 27. Nd2 Rxc5 28. dxc5 {White wins the exchange} Qc8 {Black
threatens to win material: Qc8xc5} (28... Qc7 29. Nb3 $14) 29. Nf3 (29. Nb3 Nc4
$16) 29... Qxc5 $14 30. Nh2 (30. a4 Nc4 $11) 30... Bg7 (30... Qxc3 31. Ng4 Bd2
32. Red1 $11) 31. h5 (31. Qd2 $142 $14) 31... g5 $4 {throwing away the
advantage} (31... Qxc3 $142 {would bring relief} 32. Rac1 Qd4 $11) 32. h6 $1
$18 {and the rest is history} Bxh6 33. Qh5 Bg7 34. Qxg5 Nc6 {Black prepares d4}
35. Ng4 Qe7 36. Qxe7 Nxe7 37. a4 d4 (37... bxa4 38. Rxa4 Bb5 39. Rxa7 $18) 38.
axb5 (38. Nf6+ $5 {keeps an even firmer grip} Bxf6 39. exf6 Nf5 40. cxd4 Nxd4
41. axb5 Bxb5 42. Rxa7 Bc6 43. Bxc6 Nxc6 $18) 38... Bxb5 39. Rxa7 d3 40. Rxe7
d2 41. Rd1 Be2 42. Ne3 Bxe5 43. c4 h5 44. Ra7 h4 45. Ra2 (45. gxh4 $142 $5 Rd4
46. c5 $18) 45... Bxd1 $16 46. Nxd1 hxg3 47. fxg3 Bxg3 48. c5 f5 49. Ra7 e5 $2
(49... Kf8 $142 $5 $14 {is the best option Black has}) 50. c6 $18 e4 51. Bh3 (
51. Bf1 Rc8 52. Bc4+ Kh8 53. Bb5 $18) 51... Rc8 (51... Rb8 $5 52. Kf1 Rb1 $16)
52. Ra6 (52. Bxf5 $6 Rxc6 53. Bxe4 Rc5 $14) 52... Rf8 $2 (52... Re8 $5 53. Kf1
Bd6 $18) 53. Ra5 $18 f4 $4 {the final mistake, not that it matters anymore} (
53... Bc7 54. Rxf5 Rb8 $18) 54. Kf1 (54. Rg5+ $142 {and the result of the game
is clear: White will win} Kh7 55. Rxg3 $18) 54... e3 55. Ke2 Rf6 (55... f3+ {
cannot undo what has already been done} 56. Kxe3 Re8+ 57. Kxf3 $18) 56. Ra8+
Kg7 (56... Rf8 57. Ra7 f3+ 58. Kxe3 f2 $18) 57. Ra7+ Rf7 58. Rb7 Kf6 59. Kf3
Re7 60. Rxe7 Kxe7 61. c7 e2 62. c8=N+ Kf6 63. Kxe2 Ke5 64. Nb6 Kd4 65. Bg2 Be1
66. Nd5 Ke5 67. Nb4 Bh4 68. Nd3+ Kf5 69. Kxd2 Kg4 70. Ke2 Bf6 71. N1f2+ Kg3 72.
Bf3 Bd8 73. Ne4+ Kh4 74. Ne5 (74. Kf1 Kh3 75. Ndf2+ Kh4 76. Kg2 Bf6 77. Nd3 Bd4
78. Nb4 Ba1 79. Nc6 Bf6 80. Kh2 Bd4 81. Ne7 Bg1+ 82. Kg2 Bf2 83. Nf5#) 74...
Bc7 75. Ng6+ Kh3 76. Ne7 Bd8 77. Nf5 Bb6 (77... Kh2 {does not win a prize} 78.
Kf1 Bh4 79. Nh6 Bg5 80. Ng4+ Kh3 81. Nd6 Kg3 82. Ne5 Kh2 83. Nf5 Bf6 84. Ng4+
Kh3 85. Nf2+ Kh2 86. Bg2 f3 87. Ng4#) 78. Kf1 (78. Nf6 Kh2 79. Kf1 Bd4 80. Ng4+
Kh3 81. Ngh6 Ba1 82. Bg2+ Kh2 83. Ng4#) 78... Kh2 79. Bg4 (79. Nf6 Bd4 80. Ng4+
Kh3 81. Ngh6 Ba1 82. Bg2+ Kh2 83. Ng4#) 79... f3 80. Nh4 1-0
[/pgn]
[pgn][Event "Tata Steel"]
[Site "Wijk aan Zee NED"]
[Date "2011.01.30"]
[Round "13"]
[White "Ian Nepomniachtchi"]
[Black "Viswanathan Anand"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "2720"]
[BlackElo "2804"]
[Annotator "Stockfish 020316 64 BMI2 (45m)"]
[PlyCount "76"]
[EventDate "2011.01.15"]
{B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5} {
Engine/Game Correlation: White = 55%, Black = 92%.} 1. e4 c5 2. Nf3 d6 3. d4
cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nf3 Be7 8. Bc4 O-O 9. O-O Qc7 10. Nd5
Nxd5 11. Bxd5 Nd7 {0.16/0} 12. c4 {0.13/0} (12. c4 Nf6 13. Rc1 {0.16/28 Komodo
9.3/Clare}) (12. Rc1 Nf6 13. c4 {0.16/26 Komodo 9.1/Gilbrin}) (12. c4 Nf6 13.
Rc1 {0.20/25 Komodo 9.02/Pacificrabbit}) 12... Nf6 {0.00/0} (12... Nf6 {
0.13/26 Komodo 9.02/Clare}) (12... Nf6 13. Rc1 Bg4 {0.16/25 Houdini 4 x64/Clare
}) (12... Nf6 13. Rc1 {0.20/29 Stockfish 060815/Pacificrabbit}) 13. Qb3 {
-0.04/0 last book move} (13. Qb3 Bg4 14. Rfc1 {0.00/24 Deep Fritz 14 x64/
steffan}) (13. Rc1 Bg4 {0.12/29 Stockfish 6/Tennistoody}) (13. Rc1 Bg4 14. h3 {
0.13/25 Houdini 4 x64}) 13... Nxd5 {0.07/0} (13... Bg4 14. Rfc1 Bxf3 {-0.04/25
Deep Fritz 14 x64/steffan}) (13... Nxd5 14. cxd5 b5 {0.06/31 Stockfish 121015/
Thewi}) (13... Bg4 14. Rac1 Bxf3 {0.07/26 Stockfish 6}) 14. cxd5 {0.09/0} (14.
cxd5 b5 15. Rac1 {0.07/23 Komodo 6/Pacificrabbit}) (14. cxd5 b5 15. Rfc1 {
0.13/19 Deep Rybka 4 w32/Clare}) (14. cxd5 Bg4 15. Rfc1 {0.31/24 Houdini 3 x64}
) 14... b5 {0.12/0} (14... b5 15. Rac1 Qb8 {0.09/25 Komodo 9.02/Clare}) (14...
b5 15. Rac1 Qd8 {0.01/31}) (14... b5 15. Rac1 Qb8 {0.11/18 Deep Rybka 4 x64/
jernjoffen}) 15. Rfc1 {0.00/0} (15. Rfc1 Qb8 16. a4 {0.12/25 Komodo 9.02/Clare}
) (15. Rfc1 Qb8 16. Rc6 {0.09/19 Deep Rybka 4 x64/Clare}) (15. Rfc1 Qb8 16. Rc2
{0.00/32 Stockfish 180314 SE/bking_US}) 15... Qb8 {0.00/0} (15... Qd8 16. Rc3
Bd7 {0.00/21 Deep Fritz 14 x64}) (15... Qb8 16. Nd2 f5 {0.36/19 Houdini 3 x64})
(15... Qb8 16. Rc6 Bd8 {0.08/25 Komodo 7/Pacificrabbit}) 16. Qc3 {0.00/0} (16.
a4 Bd7 {0.00/31}) (16. Rc2 Bd7 17. Rac1 {0.06/30 Stockfish 6}) (16. Rc3 Bg4 17.
Bd2 {0.36/14 Fritz 11 SE}) 16... f5 {0.00/0 The thematic attack} (16... Bd7
17. Qc7 Qe8 {0.00/29 Komodo 9.2/TwoKnights}) (16... f5 17. Qb3 Bd8 {0.00/33
Stockfish 231014 SE/Thewi}) (16... f5 17. exf5 Bxf5 {0.00/24 Komodo 7/
Pacificrabbit}) 17. Qc7 {0.00/0 White threatens to win material: Qc7xe7} (17.
Qb3 Bd8 18. Bg5 {0.00/35 Stockfish 6}) (17. Qb3 Rf7 18. exf5 {-0.03/30
Stockfish 5 SE/Kaos_00}) (17. Qc7 Rf7 18. exf5 {0.00/36 Stockfish 261114/
bking_US}) 17... Rf7 {0.00/0 Black has a cramped position} (17... Rf7 18. exf5
Bxf5 {0.00/29 Komodo 9.02}) (17... Re8 18. Nd2 fxe4 {0.00/23 Komodo 7/
Pacificrabbit}) (17... Rf7 18. exf5 Bxf5 {-0.03/19 Stockfish 6}) 18. Nd2 {
-0.32/0} (18. exf5 Bb7 19. Qd7 {0.00/31 Stockfish 6/Tennistoody}) (18. exf5
Bxf5 19. Nd2 {0.00/20 Rybka 3/Pacificrabbit}) (18. exf5 Qxc7 19. Rxc7 {-0.01/
21 Houdini 4 x64}) 18... Qxc7 {-0.34/0} (18... Qxc7 19. Rxc7 Bd8 {-0.32/36
Stockfish 6/ErnstH}) (18... Qxc7 19. Rxc7 Bd8 {-0.32/24 Deep Rybka 4 x64/Clare}
) (18... Qxc7 19. Rxc7 Bd8 {-0.50/24 Deep Fritz 14 x64}) 19. Rxc7 {-0.30/0
Black has a cramped position. Black's piece can't move: c8} (19. Rxc7 Bd8 20.
Rxf7 {-0.34/38}) (19. Rxc7 Bd8 20. Rc6 {-0.39/32 Stockfish 5 SE}) (19. Rxc7
Bd8 20. Rc6 {-0.41/18 Stockfish 6}) 19... Bd8 {-0.25/0} (19... Bd8 20. Rxf7
Kxf7 {-0.30/26 Komodo 8/rich1chess}) (19... Bd8 20. Rxf7 Kxf7 {-0.22/28 Komodo
7/Pacificrabbit}) (19... Bd8 20. Rxf7 Kxf7 {-0.26/27 Deep Fritz 13/
Pacificrabbit}) 20. Rc6 {-0.31/0} (20. Rxf7 Kxf7 21. f3 {-0.25/35 Stockfish 6/
Tennistoody}) (20. Rxf7 Kxf7 21. f3 {-0.12/22}) (20. Rxf7 Kxf7 21. f3 {-0.28/
28 Houdini 4 x64}) (20. Rxf7 Kxf7 21. g3 fxe4 22. Nxe4 Be7 $11) 20... Bd7 $15 {
-0.55/0} (20... Bd7 21. Rxd6 Bc7 {-0.31/25 Komodo 8/rich1chess}) (20... Bd7 21.
Rxd6 Bc7 {-0.38/25 Houdini 4 x64}) (20... Bd7 21. Rxd6 Bc7 {-0.53/20 Stockfish
6}) 21. Rxd6 {-0.50/0} (21. Rxd6 Bc7 22. Bc5 {-0.55/24 Deep Fritz 14 x64}) (21.
Rxd6 Bc7 22. Rxd7 {-0.79/28 Deep Fritz 13}) (21. Rxd6 Bc7 22. Bc5 {-0.35/19})
21... Bc7 {-0.38/0} (21... Bc7 22. Bc5 Bxd6 {-0.50/24 Deep Fritz 14 x64}) (
21... Bc7 22. Rxd7 Rxd7 {-0.69/23 Fritz 11 SE}) (21... Bc7 22. Bc5 Bxd6 {
-0.27/25 Komodo 7/Pacificrabbit}) 22. Rxd7 {-0.84/0} (22. Bc5 Bxd6 23. Bxd6 {
-0.38/25 Komodo 8/rookalinc}) (22. Bc5 Bxd6 23. Bxd6 {-0.57/26 Fritz 13}) (22.
Bc5 Bxd6 23. Bxd6 {-0.39/24 Houdini 4 x64}) (22. Bc5 $5 $15) 22... Rxd7 $17 {
-0.79/0} (22... Rxd7 23. a4 Rb8 {-0.84/27 Komodo 9.02}) (22... Rxd7 23. f3 f4 {
-0.82/36}) (22... Rxd7 23. f3 f4 {-0.80/33 Stockfish 6}) 23. f3 {-0.78/0} (23.
f3 f4 24. Bf2 {-0.79/37 Stockfish 301114/bking_US}) (23. f3 Rc8 24. Rc1 {
-0.67/20 Stockfish 6}) (23. a4 bxa4 24. f3 {-0.68/24 Komodo 7/Pacificrabbit})
23... f4 {-0.78/0} (23... f4 24. Bf2 Bd6 {-0.78/34 Stockfish 6/jernjoffen}) (
23... f4 24. Bc5 Rc8 {-0.77/25 Komodo 7/Pacificrabbit}) (23... f4 24. Bc5 Rc8 {
-0.79/27 Deep Fritz 13/Pacificrabbit}) 24. Bc5 {-0.74/0} (24. Bf2 Bd6 25. Nb3 {
-0.78/24 Komodo 8}) (24. Bf2 Bd6 25. Rc1 {-0.76/36}) (24. Bc5 Rc8 25. Nb3 {
-0.74/25 Komodo 7/Pacificrabbit}) 24... Bd6 {-0.46/0} (24... Rc8 25. Nb3 Bd8 {
-0.74/25 Deep Fritz 14 x64/Koppie-Koppie}) (24... Rc8 25. b4 a5 {-0.66/26
Houdini 3 x64}) (24... Rc8 25. Nb3 Bb8 {-0.64/23 Deep Fritz 14}) (24... Rc8 $5
25. Nb3 Bd8 $17) 25. Bxd6 $15 {-0.60/0} (25. Bxd6 Rxd6 26. Nb3 {-0.46/23 Deep
Rybka 4 x64/Clare}) (25. Bxd6 Rxd6 26. Nb3 {-0.38/27 Komodo 6/Clare}) (25. Bxd6
Rxd6 26. Nb3 {-0.37/26 Komodo 7/Pacificrabbit}) 25... Rxd6 {-0.55/0} (25...
Rxd6 26. Nb3 Rc8 {-0.60/22 Deep Rybka 4 x64/Clare}) (25... Rxd6 26. Nb3 Rc8 {
-0.34/25 Komodo 7/Pacificrabbit}) (25... Rxd6 26. Nb3 Rc8 {-0.34/29 Deep Fritz
13/Pacificrabbit}) 26. Nb3 {-0.42/0} (26. Nb3 Rc8 27. Na5 {-0.55/29 Komodo 9.01
}) (26. Nb3 Rc8 27. Rf1 {-0.28/34}) (26. Nb3 Rc8 27. Na5 {-0.47/19 Fritz 11 SE
}) 26... Rc8 {-0.30/0} (26... Rc8 27. Na5 Rc2 {-0.42/24 Houdini 3 x64}) (26...
Rc8 27. Na5 Rc2 {-0.46/25 Deep Fritz 14}) (26... Rc8 27. Rf1 Kf7 {-0.35/35
Stockfish 5/Hypekiller5000}) 27. Rf1 {-0.73/0} (27. Na5 Kf8 28. Nc6 {-0.30/26
Komodo 8/rich1chess}) (27. Na5 Rc2 28. Nc6 {-0.33/24 Komodo 7/Pacificrabbit}) (
27. Na5 Rc2 28. Nc6 {-0.27/26 Houdini 4 x64}) 27... Kf7 {-0.65/0} (27... Rc2
28. Rf2 Rxf2 {-0.73/28 Deep Fritz 13}) (27... Kf7 28. Na5 g5 {-0.41/33
Stockfish 6/jernjoffen}) (27... Kf8 28. Nc1 Kf7 {-0.68/24 Komodo 8}) 28. Na5 {
-0.74/0} (28. Na5 Rc2 29. Nc6 {-0.65/28 Komodo 8/TwoKnights}) (28. Na5 Rc2 29.
Nc6 {-0.60/24 Deep Fritz 14 x64}) (28. Na5 Rc2 29. Rf2 {-0.58/29 Komodo 7/
Pacificrabbit}) 28... Rc2 {-0.32/0 Black threatens to win material: Rc2xb2} (
28... Rc2 29. Nc6 Rxb2 {-0.74/20 Fritz 11 SE}) (28... Rc2 29. Nc6 Rxb2 {
-0.69/26 Houdini 4 x64/derkranvonhuenge}) (28... Rc2 29. Rf2 Rxf2 {-0.59/28
Komodo 7/Pacificrabbit}) 29. Rf2 {-0.36/0} (29. Rf2 Rc1+ 30. Rf1 {-0.32/32
Stockfish 5}) (29. Rf2 Rc1+ 30. Rf1 {-0.75/30 Deep Fritz 13/Pacificrabbit}) (
29. Rf2 Rxf2 30. Kxf2 {-0.54/25 Houdini 3 x64}) 29... Rc1+ {-0.33/0} (29...
Rc1+ 30. Rf1 Rxf1+ {-0.36/29}) (29... Rxf2 30. Kxf2 g5 {-0.59/28 Komodo 7/
Pacificrabbit}) (29... Rc1+ 30. Rf1 Rxf1+ {-0.27/25 Houdini 3 w32}) 30. Rf1 {
-0.96/0} (30. Rf1 Rc2 31. Rf2 {-0.33/36 Stockfish 5 SE}) (30. Rf1 Rxf1+ {
-0.64/29 Komodo 8/derkranvonhuenge}) (30. Rf1 Rxf1+ 31. Kxf1 {-0.62/30 Komodo
7/Pacificrabbit}) 30... Rxf1+ {-0.62/0} (30... Rxf1+ 31. Kxf1 Kf6 {-0.96/26
Deep Rybka 4 x64/Clare}) (30... Rxf1+ 31. Kxf1 Kf6 {-0.55/30 Houdini 4 x64}) (
30... Rxf1+ 31. Kxf1 Kf6 {-0.60/28 Komodo 7/Pacificrabbit}) 31. Kxf1 {-0.53/0}
(31. Kxf1 Kf6 32. Nc6 {-0.62/29 Komodo 8}) (31. Kxf1 g5 32. Nc6 {-0.36/39
Stockfish 5 SE/Clare}) (31. Kxf1 g5 32. Nc6 {-0.60/29 Komodo 7/Pacificrabbit})
31... g5 {-0.54/0} (31... Rh6 32. Nc6 Kf6 {-0.53/28 Komodo 8}) (31... Rh6 32.
Nc6 {-0.57/26 Komodo 8}) (31... g5 32. Nc6 Kf6 {-0.29/21 Stockfish 6}) 32. Nc6
{-0.88/0 White threatens to win material: Nc6xe5. An ideal square for the
white knight.} (32. Nc6 Kf6 33. g4 {-0.54/32 Komodo 9.02/ErnstH}) (32. Nc6 Kf6
33. g3 {-0.55/28 Komodo 8/derkranvonhuenge}) (32. Nc6 Kf6 33. g4 {-0.59/28
Komodo 7/Pacificrabbit}) 32... Kf6 {-0.68/0} (32... Kf6 33. Ke2 Rd7 {-0.88/26
Fritz 13}) (32... Kf6 33. g4 fxg3 {-0.47/29 Komodo 7/Pacificrabbit}) (32... Kf6
33. g4 Rd7 {-0.35/28 Houdini 1.5 x64}) 33. b4 {-0.75/0} (33. b4 h5 34. h3 {
-0.68/29 Komodo 8}) (33. g4 Rd7 34. a3 {-0.93/27 Deep Rybka 4 x64/Clare}) (33.
g4 Rd7 34. Kg2 {-0.47/26 Komodo 7/Pacificrabbit}) 33... Rd7 {-0.86/0} (33...
Rd7 34. h3 h5 {-0.75/31 Komodo 8/TwoKnights}) (33... Rd7 34. h3 {-0.38/43
Stockfish 6}) (33... Rd7 34. Ke2 h5 {-0.80/29 Komodo 7/Pacificrabbit}) 34. h3 {
-0.96/0} (34. Ke2 Rg7 35. Kf2 {-0.86/28 Deep Fritz 13/jernjoffen}) (34. Kf2 h5
35. h3 {-0.77/29 Komodo 7/Pacificrabbit}) (34. Kf2 Rc7 35. g3 {-0.55/26 Komodo
6/Freeze1}) 34... h5 {-0.53/0} (34... Rg7 35. a3 Rd7 {-0.96/28 Fritz 13}) (
34... h5 35. Kf2 Rg7 {-0.58/24 Deep Fritz 14/derkranvonhuenge}) (34... h5 {
-0.66/30 Komodo 7/Pacificrabbit}) 35. Kf2 {-1.04/0} (35. Kf2 Rg7 36. g3 {
-0.53/24 Deep Fritz 14}) (35. Ke2 Rg7 36. Kf2 {-0.85/27 Komodo 7/Pacificrabbit}
) (35. Ke2 Rg7 36. Kf2 {-0.93/28 Deep Fritz 13}) 35... Rg7 {-0.52/0} (35... Rg7
36. g3 Rd7 {-1.04/28 Fritz 13}) (35... Rg7 36. g4 fxg3+ {-0.27/45}) (35... Rc7
36. Ke2 Rg7 {-1.10/29 Deep Fritz 13/Pacificrabbit}) 36. Kf1 {-1.25/0} (36. g4
fxg3+ 37. Kxg3 {-0.52/42 Stockfish 6}) (36. g3 Rc7 37. Kg2 {-0.56/29 Komodo 7/
Pacificrabbit}) (36. g3 g4 {-0.60/23 Deep Fritz 14}) (36. g4 fxg3+ 37. Kxg3 Rg8
$15) 36... g4 $17 {-0.82/0} (36... g4 37. h4 gxf3 {-1.25/31 Komodo 6/Clare}) (
36... g4 37. h4 gxf3 {-0.91/49 Stockfish 5}) (36... g4 37. h4 gxf3 {-1.10/29
Deep Fritz 13/Pacificrabbit}) 37. hxg4 $6 {-1.95/0} (37. h4 gxf3 38. gxf3 {
-0.82/25 Deep Fritz 14 x64/cxi}) (37. h4 Rg8 38. Kf2 {-0.89/31 Houdini 4 x64})
(37. h4 Rg6 38. Kf2 {-1.29/29}) (37. h4 Rh7 $17) 37... hxg4 $19 {-2.10/0} (
37... hxg4 38. a3 g3 {-1.95/24 Deep Fritz 14 x64}) (37... hxg4 38. Kf2 g3+ {
-1.78/55}) (37... hxg4 {-2.25/31 New Engine}) 38. Kf2 (38. Nb8 g3 39. Nc6 {
-2.10/39 Komodo 9.1/Freeze1}) (38. fxg4 Rxg4 {-2.05/28 Komodo 6/Clare}) (38.
Kf2 g3+ 39. Kg1 {-1.47/51 Stockfish 6}) 38... g3+ (38... g3+ 39. Kg1 Rh7 40.
Nb8 {-1.39/54 Stockfish 6/Tennistoody}) (38... g3+ 39. Kg1 Rb7 40. Nd8 {
-1.46/61 Stockfish 5 SE/Kaos_00}) (38... g3+ 39. Kg1 Rh7 40. a3 {-2.21/30
Fritz 13}) 1/2-1/2
[/pgn]
Blundercheck
[pgn][Event "Vienna"]
[Site "Vienna"]
[Date "1859.??.??"]
[Round "?"]
[White "Lenhof"]
[Black "Wilhelm Steinitz"]
[Result "0-1"]
[ECO "C23"]
[Annotator "Stockfish 020316 64 BMI2 (12m)"]
[PlyCount "90"]
[EventDate "1859.??.??"]
{C40: Latvian and Elephant Gambits} 1. e4 e5 2. Bc4 {0.10/31 last book move
last book move} f5 {0.70/30} (2... Nf6 $5 {0.12/29} 3. Nf3 {-0.42/31} ({
Stockfish 020316 64 BMI2:} 3. d3 {0.12/29}) 3... Nxe4 {-0.38/29} 4. Nxe5 {
-0.43/31} d5 $15 {-0.39/31}) ({Stockfish 020316 64 BMI2:} 2... Nf6 3. d3 c6 4.
Nf3 d5 5. Bb3 Bb4+ 6. Bd2 Bxd2+ 7. Nbxd2 Bg4 8. exd5 cxd5 9. O-O Nc6 10. Qe1
Qe7 11. Ba4 Nd7 12. c4 dxc4 13. d4 Bxf3 14. Nxf3 O-O 15. Bxc6 bxc6 16. Nxe5
Nxe5 17. dxe5 Rfe8 18. f4 f6 19. Rc1 fxe5 20. Rxc4 exf4 21. Qxe7 Rxe7 22. Rfxf4
Rd8 23. Rxc6 Re2 {0.10/31}) 3. d3 $14 {0.67/30} Nf6 {0.77/28} 4. Nf3 {0.68/30}
d5 {0.94/30} (4... Nc6 {0.77/30} 5. O-O {0.69/31} Bc5 {0.80/28} 6. Nc3 {0.65/29
} fxe4 {0.80/30} ({Stockfish 020316 64 BMI2:} 6... f4 7. d4 Bxd4 8. Nxd4 Nxd4
9. Bxf4 d6 10. Bg5 c6 11. f4 h5 12. f5 Bd7 13. Bd3 Qa5 14. Ne2 Nxe2+ 15. Qxe2
O-O-O 16. Rab1 h4 17. b4 Qc7 18. h3 Kb8 19. c4 d5 20. exd5 cxd5 21. cxd5 Be8
22. Rfe1 Rxd5 23. Bc4 {0.65/29}) 7. dxe4 $14 {0.75/29}) ({Stockfish 020316 64
BMI2:} 4... Nc6 5. O-O Bc5 6. Nc3 fxe4 7. dxe4 d6 8. Bg5 Bg4 9. h3 Bxf3 10.
Qxf3 Nd4 11. Qd3 c6 12. a3 b5 13. Ba2 a5 14. a4 b4 15. Ne2 Nxe2+ 16. Qxe2 Qe7
17. Bb3 h6 18. Bd2 Bd4 19. Rfb1 Rb8 20. c3 Bc5 21. Qf3 Qd7 22. Re1 bxc3 23.
Qxc3 {0.68/30}) 5. exd5 $16 {0.89/30} Bd6 {0.99/31} 6. O-O {0.96/29} O-O {
0.95/26} 7. Nc3 {0.85/30} a6 {1.00/29} 8. a4 {0.87/29} h6 {0.91/29} 9. d4 {
0.76/29} e4 {1.00/36} ({Stockfish 020316 64 BMI2:} 9... Nbd7 10. Nxe5 Nxe5 11.
dxe5 Bxe5 12. Qd3 f4 13. f3 Nh5 14. Ne2 Bf5 15. Qb3 Qd6 16. Bd2 Rab8 17. Rfc1
b5 18. axb5 axb5 19. Bd3 Bxd3 20. cxd3 Rfd8 21. Bc3 Bxc3 22. Qxc3 Qxd5 23. d4
Qc4 24. Qd2 Qf7 25. Rc6 Re8 26. Nc3 {0.76/29}) 10. Ne5 {0.92/32} Nbd7 {1.02/32}
11. Nxd7 {0.00/34} (11. f4 $5 $16 {0.79/29 11...Bxd7 0.00}) ({Stockfish
020316 64 BMI2:} 11. f4 exf3 12. Nxf3 Ne4 13. Bb3 b6 14. Be3 Ndf6 15. Ne5 Nxc3
16. bxc3 a5 17. Qd3 Ba6 18. c4 Nxd5 19. Rxf5 Rxf5 20. Qxf5 Bxe5 21. Qxe5 Nxe3
22. Qxe3 Kh8 23. Re1 Qd6 24. c5 bxc5 25. dxc5 Qd7 26. Qe4 Rf8 27. Bd5 Qf5 28.
Qxf5 Rxf5 29. Re8+ Kh7 30. Bg8+ Kg6 31. Re6+ Rf6 {1.02/32}) 11... Bxd7 {0.00/34
} 12. f3 {0.00/32 Secures g4} Qe8 {0.11/32} ({Stockfish 020316 64 BMI2:} 12...
exf3 13. Qxf3 Ng4 14. g3 g5 15. h3 Nf6 16. Bd3 Qe7 17. Bxf5 Ne4 18. Qxe4 Bxf5
19. Rxf5 Rxf5 20. Qxf5 Qe1+ 21. Qf1 Qxg3+ 22. Qg2 Qe1+ 23. Qf1 Qg3+ {0.00/32})
13. fxe4 {0.15/36} fxe4 {0.17/35 Black has a new passed pawn: e4.} 14. Bf4 {
0.13/36} Qg6 {0.22/32} 15. Bxd6 {0.12/36} cxd6 {0.15/33} 16. Qe2 {0.10/34} (16.
Qd2 {0.08/37} Ng4 {0.09/34} 17. Qe2 {0.18/34} Rac8 $11 {0.23/30}) ({Stockfish
020316 64 BMI2:} 16. Qd2 Ng4 17. Qe2 Rac8 18. b3 e3 19. Bd3 Bf5 20. Rxf5 Rxf5
21. h3 Rxc3 22. hxg4 Rf2 23. Qxe3 Rf6 24. Re1 Qxg4 25. Bh7+ Kxh7 26. Qxc3 Qf5
27. Qd2 Qxd5 28. Qd3+ Rg6 29. g3 Qh5 30. Re8 Qh3 31. Rh8+ Kxh8 32. Qxg6 d5 33.
Kf2 Qc8 34. Ke2 b5 35. axb5 axb5 36. Qd3 Qe6+ 37. Qe3 {0.15/33}) 16... Rae8 {
0.50/36} (16... Bg4 {0.18/32 17.Qe3 0.50} 17. Qe1 $11 {0.17/31}) ({Stockfish
020316 64 BMI2:} 16... Rac8 17. b3 Bg4 18. Qd2 Rce8 19. Rae1 Bf3 20. Qf2 Nh5
21. Kh1 e3 22. Qg1 Be4 23. Rxf8+ Kxf8 24. Qf1+ Kg8 25. Nxe4 Qxe4 26. Qf3 Qxf3
27. gxf3 Nf4 28. Kg1 Kf8 29. Bd3 Nxd3 30. cxd3 Rc8 31. Rxe3 Rc3 32. Re6 Rxb3
33. Rxd6 Rxd3 34. Rd8+ Ke7 35. Rb8 Rb3 36. Kf2 b5 37. axb5 Rxb5 38. Rg8 Kf6 39.
Ra8 a5 40. Ra6+ Ke7 41. Ke3 Rxd5 42. Kd3 Rh5 43. Kc4 Rxh2 44. Rxa5 {0.10/34})
17. Rf4 {-0.12/34 e4 draws heavy fire} (17. Qe3 {0.53/32 17...Bg4 -0.12} Ng4 {
0.80/34} ({Stockfish 020316 64 BMI2:} 17... b5 18. axb5 Rc8 19. Bb3 axb5 20.
Ne2 Nh5 21. Rxf8+ Rxf8 22. Rf1 Rxf1+ 23. Kxf1 Qf6+ 24. Kg1 Qh4 25. Nc3 Nf6 26.
Qd2 Bf5 27. Nd1 Bg6 28. Qf2 Qg5 29. Qe3 Qg4 30. Nc3 Be8 31. Qd2 Bh5 32. Qe1 Be8
33. Nd1 Qf4 34. Qe3 Qg4 35. c3 Bf7 36. Qf2 Qh5 37. Ne3 Ng4 38. Nxg4 Qxg4 39.
Qe3 Qf5 40. Qe2 {0.53/32}) 18. Qg3 {0.68/33} h5 $14 {0.59/30}) ({Stockfish
020316 64 BMI2:} 17. Qe3 b5 18. axb5 Rc8 19. Bb3 axb5 20. Ne2 Nh5 21. Rxf8+
Rxf8 22. Rf1 Rxf1+ 23. Kxf1 Qf6+ 24. Kg1 Qh4 25. Nc3 Nf6 26. Qd2 Bf5 27. Nd1
Bg6 28. Ne3 Ng4 29. h3 Nxe3 30. Qxe3 Qf6 31. c4 bxc4 32. Bxc4 Qf5 33. b4 Bf7
34. g4 Qc8 35. Qe2 Qe8 36. b5 e3 37. Qc2 Kf8 38. b6 e2 39. Qxe2 Qxe2 40. Bxe2
Bxd5 41. Kh2 {0.50/36}) 17... Re7 {0.43/30} (17... h5 {0.00/34 18.Qe3 0.43}
18. Qe3 {0.00/37} Ng4 {0.00/39} 19. Rxf8+ {0.00/39} Rxf8 {0.00/37} 20. Qxe4 $11
{0.00/35}) ({Stockfish 020316 64 BMI2:} 17... Bg4 18. Qe1 e3 19. Be2 Bf5 20.
Rf3 Bxc2 21. Qc1 Bb3 22. Rxe3 Nxd5 23. Rxe8 Qxe8 24. Bf3 Nb4 25. Qd2 Qg6 26.
Be4 Qf7 27. Bf3 a5 28. Nb5 Qd7 29. Qc3 Bxa4 30. Nxd6 Bc6 31. Nc4 Bxf3 32. Ne5
Qd5 33. Nxf3 Nc6 34. Rc1 Rd8 35. Qc4 Qxc4 36. Rxc4 Kf7 37. Kf2 Ke6 38. Ke3 Kd6
{-0.12/34}) 18. Re1 {0.25/30} (18. Qe3 {0.59/32 18...Rc8 0.25} Rff7 {0.68/33}
19. Be2 {0.62/30} Bg4 $14 {1.02/32} ({Stockfish 020316 64 BMI2:} 19... Qg5 20.
Raf1 Bc8 21. h4 Qg6 22. Re1 Bd7 23. Rff1 Rf8 24. a5 Ref7 25. Qf4 Nh5 26. Qxe4
Rxf1+ 27. Rxf1 Rxf1+ 28. Bxf1 Bf5 29. Qe3 Bxc2 30. Qe6+ Kf8 31. Qxg6 Bxg6 32.
Kf2 Nf6 33. g3 Bf7 34. Bc4 Ke7 35. Ke3 g5 36. b4 Ng4+ 37. Kf3 Nf6 38. hxg5 {
0.62/30})) ({Stockfish 020316 64 BMI2:} 18. Qe3 Qg5 19. Be2 Kh7 20. Raf1 Rfe8
21. Re1 Bh3 22. Qf2 Bd7 23. a5 Bh3 24. Bf1 Bd7 25. Bc4 Bh3 26. Be2 Bd7 27. Ra1
Bh3 28. Ra3 h5 29. Ra1 Kg8 30. Rf1 Qg6 31. Rxf6 gxf6 32. Qg3 Qxg3 33. hxg3 Bg4
34. Rxf6 e3 35. Rg6+ Kf7 36. Rxd6 {0.43/30}) 18... Rfe8 {0.74/32} (18... Rff7
$142 $11 {0.40/31 19.Qe3 0.74}) ({Stockfish 020316 64 BMI2:} 18... Rc8 19. Qf1
Ree8 20. Be2 Re7 21. a5 Rce8 22. Rc1 h5 23. h4 Rf8 24. Qf2 e3 25. Qf3 Bg4 26.
Qg3 Bf5 27. Qxg6 Bxg6 28. Rff1 Rfe8 29. Kh1 Kh7 30. Rf3 Be4 31. Rg3 Rf8 32. Rg5
Ree8 33. Kg1 Bg6 34. Rg3 {0.25/30}) 19. Qf2 $4 {-1.48/33 letting the wind out
of his own sails} (19. Qe3 $142 $16 {0.62/31 19...Nh5 -1.48}) ({Stockfish
020316 64 BMI2:} 19. Qe3 b5 20. axb5 Rc8 21. Bb3 axb5 22. h3 Qg5 23. Ne2 Kh7
24. h4 Qg6 25. c3 Ra8 26. Rff1 Qg4 27. Qf4 Ra6 28. Ng3 e3 29. Qxg4 Bxg4 30.
Bc2+ Kg8 31. Bf5 Re8 32. Bxg4 Nxg4 33. Rf3 Ra2 34. Nf5 Rxb2 35. Nxd6 Rd8 36.
Nf5 {0.74/32}) 19... Nh5 $17 {-1.37/33} 20. Rh4 {-1.44/38} Rf7 {0.00/35 Black
threatens to win material: Rf7xf2} (20... Rf8 $5 {-1.44/39 21.Qd2 0.00
deserves consideration} 21. Qd2 {-1.52/40} b5 {-1.55/39} 22. axb5 {-1.57/38}
axb5 {-1.54/38} 23. Nxb5 {-1.54/38} e3 {-1.43/42} 24. Rxe3 {-1.43/40} Qg5 {
-1.44/41} 25. Rxh5 {-1.39/39} Qxe3+ {-1.51/39} 26. Qxe3 {-1.44/41} Rxe3 $17 {
-1.44/35}) ({Stockfish 020316 64 BMI2:} 20... Rf8 21. Qd2 b5 22. axb5 axb5 23.
Nxb5 e3 24. Rxe3 Qg5 25. Rxh5 Qxe3+ 26. Qxe3 Rxe3 27. h3 Rf6 28. Nc7 Bf5 29.
Rxf5 Rxf5 30. Bd3 Rf7 31. Nb5 Rf6 32. Nc7 Kf7 33. b4 g5 34. Kh2 Rf4 35. Ne6 Rf2
36. b5 Rxd3 37. cxd3 Rb2 38. h4 Rxb5 39. hxg5 Rxd5 40. Nf4 Rxg5 41. Kh3 Kf6 42.
g3 Kf5 43. Nd5 Ke6 44. Nf4+ Kd7 45. Kg2 Ra5 46. Kf3 Kc6 47. Kf2 Rf5 48. Kf3 Rf8
49. Ke3 Re8+ 50. Kf3 {-1.44/38}) 21. Qd2 $11 {0.00/32} Nf6 {0.00/37} 22. h3 {
-1.77/37 Prevents intrusion on g4} (22. Rf4 {0.00/37 22...Qg3 -1.77} e3 {
0.00/38} 23. Rxe3 {0.00/39} Rxe3 {0.00/38} 24. Qxe3 {0.00/37} Qxc2 $11 {0.00/35
}) ({Stockfish 020316 64 BMI2:} 22. Rf4 e3 23. Rxe3 Rxe3 24. Qxe3 Qxc2 25. h3
Qxb2 26. Rf1 Qb6 27. Bd3 Qc7 28. Bg6 Rf8 29. Rf3 Qd8 30. Qd3 Qa5 31. Qe3 Qd8 {
0.00/37}) 22... Qg5 {-0.19/35 Black prepares the advance e3. Black threatens
to win material: Qg5xd2. Black forks: d2+h4} (22... Qg3 $142 {-1.71/37 23.Qf4
-0.19} 23. Rhxe4 {-1.74/39} Nxe4 {-1.68/34} 24. Rxe4 {-1.70/35} Ref8 $17 {
-1.58/33}) ({Stockfish 020316 64 BMI2:} 22... Qg3 23. Rexe4 Nxe4 24. Rxe4 Ref8
25. Re3 Rf2 26. Rxg3 Rxd2 27. Ne4 Rxc2 28. b3 Bxa4 29. Nxd6 b5 30. Bd3 Rc1+ 31.
Kh2 Bxb3 32. Nf5 Rxf5 33. Bxf5 Bxd5 34. Ra3 Rc6 35. g4 Kf7 36. Kg3 g6 37. Bb1
Rf6 38. h4 b4 39. Ra5 Rf3+ 40. Kh2 Bc4 41. Rc5 Bb5 42. Rc7+ Kf6 43. Rb7 Re3 44.
Rb6+ Re6 45. g5+ hxg5 46. hxg5+ Ke7 47. Rb8 Kd6 48. Kg3 b3 49. Kf4 Re8 50. Rxe8
Bxe8 51. Ke3 a5 52. Kd2 {-1.77/37}) 23. Qf4 $11 {-0.31/33 White threatens to
win material: Qf4xd6} Nh7 {1.53/33} (23... b5 $142 {-0.20/33 24.Qxg5 1.53 is
the best option Black has} 24. axb5 {-0.27/31} Rc8 $11 {-0.14/32}) ({Stockfish
020316 64 BMI2:} 23... b5 24. axb5 Rc8 25. Bb3 axb5 26. Ne2 Re8 27. c3 Bf5 28.
Bc2 Bg6 29. Ra1 Rff8 30. Ng3 Qxd5 31. Qe3 Rf7 32. Rf4 Qc4 33. Qe1 b4 34. Ra4
Rb8 35. Nf1 Qc6 36. Bb3 d5 37. cxb4 Qd6 38. Qd2 Re8 39. Qe3 Rd8 40. b5 Qb6 41.
Qe2 Ra7 42. Rxa7 Qxa7 43. Qd2 Qb6 {-0.31/33}) 24. Qxg5 $16 {1.48/32} Nxg5 {
1.53/31} (24... hxg5 $2 {2.66/33 25.a5 1.53} 25. Rhxe4 {2.51/32} Rc8 {2.76/31}
26. Bd3 $18 {2.54/31}) 25. Rf1 {1.32/34} (25. a5 {1.44/35} Rc8 {1.53/32} 26.
Bb3 {1.58/33} Re8 $16 {1.63/29}) 25... Rfe7 {1.47/31} (25... Bf5 {1.29/35} 26.
Rhf4 {1.25/33} Rc7 {1.33/32} 27. Be2 $16 {1.26/32}) 26. Rhf4 {1.12/32} ({
Stockfish 020316 64 BMI2:} 26. Be2 Rc8 27. a5 e3 28. Bd3 Rb8 29. Re1 b6 30.
axb6 Rxb6 31. b3 Rb8 32. Rf4 Bxh3 33. Bxa6 Bd7 34. Bd3 Be8 35. Nd1 Bf7 36. Nxe3
Bxd5 37. Rff1 Rbe8 38. Bb5 Rb8 39. c4 Bb7 40. Nf5 Re4 41. Nxd6 Rxd4 42. Nxb7
Rxb7 {1.47/31}) 26... e3 {1.12/32} 27. Re1 {1.15/36} Bxh3 {1.13/36} 28. Bd3 {
1.09/34} Bd7 {1.11/30} 29. b3 {0.67/35} ({Stockfish 020316 64 BMI2:} 29. a5 Rb8
30. Nd1 b6 31. axb6 e2 32. Nc3 Rxb6 33. b3 Be8 34. Rxe2 Rxe2 35. Nxe2 Bf7 36.
Nc3 Rb8 37. Kf2 Re8 38. Rh4 Rc8 39. Ne4 Nxe4+ 40. Bxe4 Re8 41. Kf3 Rb8 42. Ke2
a5 43. Kd3 Be8 44. Rh1 a4 45. bxa4 Ra8 46. c4 Rxa4 47. c5 {1.11/30}) 29... Nh7
$2 {2.50/35} (29... h5 $14 {0.94/33 30.Ne4 2.50}) ({Stockfish 020316 64 BMI2:
} 29... Rc8 30. Ne4 Nxe4 31. Rxe3 Rce8 32. Rfxe4 Rxe4 33. Rxe4 Rxe4 34. Bxe4 a5
35. Bg6 Kf8 36. c3 Ke7 37. Kf2 Bg4 38. Bc2 h5 39. Ke3 g5 40. b4 b6 41. b5 h4
42. c4 Kd7 43. Kd2 Kc7 44. Bd3 Bd7 45. Ke2 Bg4+ 46. Ke1 Bd7 47. Bg6 Bg4 48. Kd2
Bd7 49. Ke3 {0.67/35}) 30. Nd1 $4 {0.00/37 forfeits the advantage} (30. Ne4
$142 {2.47/34 30...Nf6 0.00 White would have gained the upper hand} g5 {
2.52/32} 31. Nf6+ {2.46/32} Kf7 {2.68/32} 32. Nxe8+ {2.52/33} gxf4 {2.71/29}
33. Nxd6+ {2.51/31} Kf6 {2.73/33} 34. Rf1 $18 {2.60/31}) ({Stockfish 020316 64
BMI2:} 30. Ne4 g5 31. Nf6+ Kh8 32. Rf3 g4 33. Rff1 e2 34. Rf4 Nxf6 35. Rxf6 g3
36. Rxd6 h5 37. Rh6+ Kg8 38. Rxh5 Re3 39. Rh4 R8e7 40. d6 Re8 41. a5 Bb5 42.
Rg4+ Kf8 43. Bxb5 axb5 44. Rf4+ Kg7 45. Rf3 Rxf3 46. gxf3 Kf6 47. c4 bxc4 48.
bxc4 Re3 49. Kg2 Ke6 50. c5 Kd7 51. Kxg3 Kc6 52. Kf2 {2.50/35}) 30... Nf6 $11 {
0.00/34} 31. c4 {0.00/39} Ng4 {1.71/35} (31... e2 {0.00/38 32.Bg6 1.71} 32.
Nb2 $11 {0.00/35}) ({Stockfish 020316 64 BMI2:} 31... e2 32. Nb2 b5 33. cxb5
axb5 34. axb5 Rb8 35. Rxe2 Rxe2 36. Bxe2 Bxb5 37. Bg4 Nxg4 38. Rxg4 Rc8 39. Rg6
Rc3 40. Nc4 Bxc4 41. bxc4 Rxc4 42. Rxd6 Rxd4 43. Kf2 Rd2+ 44. Kf3 Kf7 45. Rd7+
Kf6 46. g4 Rd4 47. d6 g6 48. Rh7 Rxd6 49. Rxh6 {0.00/39}) 32. Rf3 {0.00/46} (
32. Bg6 $142 {1.62/33 32...Nf2 0.00} Rb8 {1.77/38} 33. Nc3 $16 {1.77/35}) ({
Stockfish 020316 64 BMI2:} 32. Bg6 {1.71/35}) 32... Nf2 $11 {0.00/45 Black
threatens to win material: Nf2xd3} 33. Bg6 {0.00/46} (33. Nxf2 {-6.50/29 33...
Nxd1 0.00} exf2+ {-6.34/29 Passed pawn}) 33... Nxd1 {0.00/45 Decoy: d1} 34.
Bxe8 {0.00/46} (34. Rxd1 {0.00/44} Bg4 {0.00/42 Decoy}) 34... Rxe8 {0.00/44}
35. Rxd1 {0.00/42 White wins the exchange} Bg4 {0.00/37 Black threatens to win
material: Bg4xf3} 36. Re1 {0.00/44} Bxf3 {0.00/41} 37. gxf3 {0.00/38 A rook
endgame occured} Kf7 {0.00/35} 38. c5 {0.00/45} dxc5 {0.00/45} 39. dxc5 {
0.00/41 White has a new passed pawn: d5} Re5 {0.00/54} 40. c6 {0.00/51} bxc6 {
0.00/51} 41. dxc6 {0.00/42} Ke6 {0.00/44} 42. Kf1 {0.00/41} e2+ {0.00/49} 43.
Rxe2 $4 {-123.41/60 a weak move, ruining a winning position.} (43. Kf2 $142 $11
{0.00/46 43...Rxe2 -123.41 would be a reprieve}) ({Stockfish 020316 64 BMI2:}
43. Kf2 Kd6 44. b4 Kxc6 45. Rxe2 Rxe2+ 46. Kxe2 Kd5 47. Kd3 h5 48. Ke3 Kd6 49.
b5 axb5 50. axb5 {0.00/49}) 43... Rxe2 $19 {-123.41/59} 44. Kxe2 {-123.41/56}
a5 {-123.42/57} 45. f4 {-123.43/56} g6 {-123.43/57} 0-1
[/pgn]
[pgn][Event "Chess Olympiad"]
[Site "Istanbul TUR"]
[Date "2012.09.06"]
[Round "9.1"]
[White "Hikaru Nakamura"]
[Black "Vladimir Kramnik"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "2778"]
[BlackElo "2797"]
[Annotator "Stockfish 020316 64 BMI2 (60m)"]
[PlyCount "159"]
[EventDate "2012.08.28"]
{D79: Fianchetto Grünfeld: Symmetrical Variation (6 0-0 c6 7 cxd5 cxd5)} 1. Nf3
Nf6 2. g3 g6 3. Bg2 Bg7 4. c4 c6 5. d4 d5 6. cxd5 cxd5 7. Nc3 Ne4 8. Qb3 Nxc3
9. bxc3 O-O 10. Nd2 e6 11. e4 Nc6 12. O-O Na5 13. Qd1 Qc7 14. Qf3 b6 15. Ba3
Rd8 {last book move} 16. e5 {White gains space} Ba6 17. Rfe1 Rac8 18. Bb4 Bh6 {
Black threatens to win material: Bh6xd2} 19. Qd1 Nc6 20. Ba3 Na5 21. Bb4 Nc6
22. Ba3 Na5 {Twofold repetition} (22... Qd7 23. h4 $11) 23. Nb1 (23. Bb4 Qd7
$11) 23... b5 (23... Qd7 24. Bb4 $11) 24. h4 (24. Bb4 Nc4 $11) 24... Nc6 (24...
Nc4 25. Bc5 $11) 25. Bc5 Qb8 (25... Bg7 26. Bd6 Rxd6 27. exd6 Qxd6 28. Bf1 $11)
26. Qe2 $14 Na5 27. Nd2 Rxc5 28. dxc5 {White wins the exchange} Qc8 {Black
threatens to win material: Qc8xc5} (28... Qc7 29. Nb3 $14) 29. Nf3 (29. Nb3 Nc4
$16) 29... Qxc5 $14 30. Nh2 (30. a4 Nc4 $11) 30... Bg7 (30... Qxc3 31. Ng4 Bd2
32. Red1 $11) 31. h5 (31. Qd2 $142 $14) 31... g5 $4 {throwing away the
advantage} (31... Qxc3 $142 {would bring relief} 32. Rac1 Qd4 $11) 32. h6 $1
$18 {and the rest is history} Bxh6 33. Qh5 Bg7 34. Qxg5 Nc6 {Black prepares d4}
35. Ng4 Qe7 36. Qxe7 Nxe7 37. a4 d4 (37... bxa4 38. Rxa4 Bb5 39. Rxa7 $18) 38.
axb5 (38. Nf6+ $5 {keeps an even firmer grip} Bxf6 39. exf6 Nf5 40. cxd4 Nxd4
41. axb5 Bxb5 42. Rxa7 Bc6 43. Bxc6 Nxc6 $18) 38... Bxb5 39. Rxa7 d3 40. Rxe7
d2 41. Rd1 Be2 42. Ne3 Bxe5 43. c4 h5 44. Ra7 h4 45. Ra2 (45. gxh4 $142 $5 Rd4
46. c5 $18) 45... Bxd1 $16 46. Nxd1 hxg3 47. fxg3 Bxg3 48. c5 f5 49. Ra7 e5 $2
(49... Kf8 $142 $5 $14 {is the best option Black has}) 50. c6 $18 e4 51. Bh3 (
51. Bf1 Rc8 52. Bc4+ Kh8 53. Bb5 $18) 51... Rc8 (51... Rb8 $5 52. Kf1 Rb1 $16)
52. Ra6 (52. Bxf5 $6 Rxc6 53. Bxe4 Rc5 $14) 52... Rf8 $2 (52... Re8 $5 53. Kf1
Bd6 $18) 53. Ra5 $18 f4 $4 {the final mistake, not that it matters anymore} (
53... Bc7 54. Rxf5 Rb8 $18) 54. Kf1 (54. Rg5+ $142 {and the result of the game
is clear: White will win} Kh7 55. Rxg3 $18) 54... e3 55. Ke2 Rf6 (55... f3+ {
cannot undo what has already been done} 56. Kxe3 Re8+ 57. Kxf3 $18) 56. Ra8+
Kg7 (56... Rf8 57. Ra7 f3+ 58. Kxe3 f2 $18) 57. Ra7+ Rf7 58. Rb7 Kf6 59. Kf3
Re7 60. Rxe7 Kxe7 61. c7 e2 62. c8=N+ Kf6 63. Kxe2 Ke5 64. Nb6 Kd4 65. Bg2 Be1
66. Nd5 Ke5 67. Nb4 Bh4 68. Nd3+ Kf5 69. Kxd2 Kg4 70. Ke2 Bf6 71. N1f2+ Kg3 72.
Bf3 Bd8 73. Ne4+ Kh4 74. Ne5 (74. Kf1 Kh3 75. Ndf2+ Kh4 76. Kg2 Bf6 77. Nd3 Bd4
78. Nb4 Ba1 79. Nc6 Bf6 80. Kh2 Bd4 81. Ne7 Bg1+ 82. Kg2 Bf2 83. Nf5#) 74...
Bc7 75. Ng6+ Kh3 76. Ne7 Bd8 77. Nf5 Bb6 (77... Kh2 {does not win a prize} 78.
Kf1 Bh4 79. Nh6 Bg5 80. Ng4+ Kh3 81. Nd6 Kg3 82. Ne5 Kh2 83. Nf5 Bf6 84. Ng4+
Kh3 85. Nf2+ Kh2 86. Bg2 f3 87. Ng4#) 78. Kf1 (78. Nf6 Kh2 79. Kf1 Bd4 80. Ng4+
Kh3 81. Ngh6 Ba1 82. Bg2+ Kh2 83. Ng4#) 78... Kh2 79. Bg4 (79. Nf6 Bd4 80. Ng4+
Kh3 81. Ngh6 Ba1 82. Bg2+ Kh2 83. Ng4#) 79... f3 80. Nh4 1-0
[/pgn]
[pgn][Event "Tata Steel"]
[Site "Wijk aan Zee NED"]
[Date "2011.01.30"]
[Round "13"]
[White "Ian Nepomniachtchi"]
[Black "Viswanathan Anand"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "2720"]
[BlackElo "2804"]
[Annotator "Stockfish 020316 64 BMI2 (45m)"]
[PlyCount "76"]
[EventDate "2011.01.15"]
{B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5} {
Engine/Game Correlation: White = 55%, Black = 92%.} 1. e4 c5 2. Nf3 d6 3. d4
cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nf3 Be7 8. Bc4 O-O 9. O-O Qc7 10. Nd5
Nxd5 11. Bxd5 Nd7 {0.16/0} 12. c4 {0.13/0} (12. c4 Nf6 13. Rc1 {0.16/28 Komodo
9.3/Clare}) (12. Rc1 Nf6 13. c4 {0.16/26 Komodo 9.1/Gilbrin}) (12. c4 Nf6 13.
Rc1 {0.20/25 Komodo 9.02/Pacificrabbit}) 12... Nf6 {0.00/0} (12... Nf6 {
0.13/26 Komodo 9.02/Clare}) (12... Nf6 13. Rc1 Bg4 {0.16/25 Houdini 4 x64/Clare
}) (12... Nf6 13. Rc1 {0.20/29 Stockfish 060815/Pacificrabbit}) 13. Qb3 {
-0.04/0 last book move} (13. Qb3 Bg4 14. Rfc1 {0.00/24 Deep Fritz 14 x64/
steffan}) (13. Rc1 Bg4 {0.12/29 Stockfish 6/Tennistoody}) (13. Rc1 Bg4 14. h3 {
0.13/25 Houdini 4 x64}) 13... Nxd5 {0.07/0} (13... Bg4 14. Rfc1 Bxf3 {-0.04/25
Deep Fritz 14 x64/steffan}) (13... Nxd5 14. cxd5 b5 {0.06/31 Stockfish 121015/
Thewi}) (13... Bg4 14. Rac1 Bxf3 {0.07/26 Stockfish 6}) 14. cxd5 {0.09/0} (14.
cxd5 b5 15. Rac1 {0.07/23 Komodo 6/Pacificrabbit}) (14. cxd5 b5 15. Rfc1 {
0.13/19 Deep Rybka 4 w32/Clare}) (14. cxd5 Bg4 15. Rfc1 {0.31/24 Houdini 3 x64}
) 14... b5 {0.12/0} (14... b5 15. Rac1 Qb8 {0.09/25 Komodo 9.02/Clare}) (14...
b5 15. Rac1 Qd8 {0.01/31}) (14... b5 15. Rac1 Qb8 {0.11/18 Deep Rybka 4 x64/
jernjoffen}) 15. Rfc1 {0.00/0} (15. Rfc1 Qb8 16. a4 {0.12/25 Komodo 9.02/Clare}
) (15. Rfc1 Qb8 16. Rc6 {0.09/19 Deep Rybka 4 x64/Clare}) (15. Rfc1 Qb8 16. Rc2
{0.00/32 Stockfish 180314 SE/bking_US}) 15... Qb8 {0.00/0} (15... Qd8 16. Rc3
Bd7 {0.00/21 Deep Fritz 14 x64}) (15... Qb8 16. Nd2 f5 {0.36/19 Houdini 3 x64})
(15... Qb8 16. Rc6 Bd8 {0.08/25 Komodo 7/Pacificrabbit}) 16. Qc3 {0.00/0} (16.
a4 Bd7 {0.00/31}) (16. Rc2 Bd7 17. Rac1 {0.06/30 Stockfish 6}) (16. Rc3 Bg4 17.
Bd2 {0.36/14 Fritz 11 SE}) 16... f5 {0.00/0 The thematic attack} (16... Bd7
17. Qc7 Qe8 {0.00/29 Komodo 9.2/TwoKnights}) (16... f5 17. Qb3 Bd8 {0.00/33
Stockfish 231014 SE/Thewi}) (16... f5 17. exf5 Bxf5 {0.00/24 Komodo 7/
Pacificrabbit}) 17. Qc7 {0.00/0 White threatens to win material: Qc7xe7} (17.
Qb3 Bd8 18. Bg5 {0.00/35 Stockfish 6}) (17. Qb3 Rf7 18. exf5 {-0.03/30
Stockfish 5 SE/Kaos_00}) (17. Qc7 Rf7 18. exf5 {0.00/36 Stockfish 261114/
bking_US}) 17... Rf7 {0.00/0 Black has a cramped position} (17... Rf7 18. exf5
Bxf5 {0.00/29 Komodo 9.02}) (17... Re8 18. Nd2 fxe4 {0.00/23 Komodo 7/
Pacificrabbit}) (17... Rf7 18. exf5 Bxf5 {-0.03/19 Stockfish 6}) 18. Nd2 {
-0.32/0} (18. exf5 Bb7 19. Qd7 {0.00/31 Stockfish 6/Tennistoody}) (18. exf5
Bxf5 19. Nd2 {0.00/20 Rybka 3/Pacificrabbit}) (18. exf5 Qxc7 19. Rxc7 {-0.01/
21 Houdini 4 x64}) 18... Qxc7 {-0.34/0} (18... Qxc7 19. Rxc7 Bd8 {-0.32/36
Stockfish 6/ErnstH}) (18... Qxc7 19. Rxc7 Bd8 {-0.32/24 Deep Rybka 4 x64/Clare}
) (18... Qxc7 19. Rxc7 Bd8 {-0.50/24 Deep Fritz 14 x64}) 19. Rxc7 {-0.30/0
Black has a cramped position. Black's piece can't move: c8} (19. Rxc7 Bd8 20.
Rxf7 {-0.34/38}) (19. Rxc7 Bd8 20. Rc6 {-0.39/32 Stockfish 5 SE}) (19. Rxc7
Bd8 20. Rc6 {-0.41/18 Stockfish 6}) 19... Bd8 {-0.25/0} (19... Bd8 20. Rxf7
Kxf7 {-0.30/26 Komodo 8/rich1chess}) (19... Bd8 20. Rxf7 Kxf7 {-0.22/28 Komodo
7/Pacificrabbit}) (19... Bd8 20. Rxf7 Kxf7 {-0.26/27 Deep Fritz 13/
Pacificrabbit}) 20. Rc6 {-0.31/0} (20. Rxf7 Kxf7 21. f3 {-0.25/35 Stockfish 6/
Tennistoody}) (20. Rxf7 Kxf7 21. f3 {-0.12/22}) (20. Rxf7 Kxf7 21. f3 {-0.28/
28 Houdini 4 x64}) (20. Rxf7 Kxf7 21. g3 fxe4 22. Nxe4 Be7 $11) 20... Bd7 $15 {
-0.55/0} (20... Bd7 21. Rxd6 Bc7 {-0.31/25 Komodo 8/rich1chess}) (20... Bd7 21.
Rxd6 Bc7 {-0.38/25 Houdini 4 x64}) (20... Bd7 21. Rxd6 Bc7 {-0.53/20 Stockfish
6}) 21. Rxd6 {-0.50/0} (21. Rxd6 Bc7 22. Bc5 {-0.55/24 Deep Fritz 14 x64}) (21.
Rxd6 Bc7 22. Rxd7 {-0.79/28 Deep Fritz 13}) (21. Rxd6 Bc7 22. Bc5 {-0.35/19})
21... Bc7 {-0.38/0} (21... Bc7 22. Bc5 Bxd6 {-0.50/24 Deep Fritz 14 x64}) (
21... Bc7 22. Rxd7 Rxd7 {-0.69/23 Fritz 11 SE}) (21... Bc7 22. Bc5 Bxd6 {
-0.27/25 Komodo 7/Pacificrabbit}) 22. Rxd7 {-0.84/0} (22. Bc5 Bxd6 23. Bxd6 {
-0.38/25 Komodo 8/rookalinc}) (22. Bc5 Bxd6 23. Bxd6 {-0.57/26 Fritz 13}) (22.
Bc5 Bxd6 23. Bxd6 {-0.39/24 Houdini 4 x64}) (22. Bc5 $5 $15) 22... Rxd7 $17 {
-0.79/0} (22... Rxd7 23. a4 Rb8 {-0.84/27 Komodo 9.02}) (22... Rxd7 23. f3 f4 {
-0.82/36}) (22... Rxd7 23. f3 f4 {-0.80/33 Stockfish 6}) 23. f3 {-0.78/0} (23.
f3 f4 24. Bf2 {-0.79/37 Stockfish 301114/bking_US}) (23. f3 Rc8 24. Rc1 {
-0.67/20 Stockfish 6}) (23. a4 bxa4 24. f3 {-0.68/24 Komodo 7/Pacificrabbit})
23... f4 {-0.78/0} (23... f4 24. Bf2 Bd6 {-0.78/34 Stockfish 6/jernjoffen}) (
23... f4 24. Bc5 Rc8 {-0.77/25 Komodo 7/Pacificrabbit}) (23... f4 24. Bc5 Rc8 {
-0.79/27 Deep Fritz 13/Pacificrabbit}) 24. Bc5 {-0.74/0} (24. Bf2 Bd6 25. Nb3 {
-0.78/24 Komodo 8}) (24. Bf2 Bd6 25. Rc1 {-0.76/36}) (24. Bc5 Rc8 25. Nb3 {
-0.74/25 Komodo 7/Pacificrabbit}) 24... Bd6 {-0.46/0} (24... Rc8 25. Nb3 Bd8 {
-0.74/25 Deep Fritz 14 x64/Koppie-Koppie}) (24... Rc8 25. b4 a5 {-0.66/26
Houdini 3 x64}) (24... Rc8 25. Nb3 Bb8 {-0.64/23 Deep Fritz 14}) (24... Rc8 $5
25. Nb3 Bd8 $17) 25. Bxd6 $15 {-0.60/0} (25. Bxd6 Rxd6 26. Nb3 {-0.46/23 Deep
Rybka 4 x64/Clare}) (25. Bxd6 Rxd6 26. Nb3 {-0.38/27 Komodo 6/Clare}) (25. Bxd6
Rxd6 26. Nb3 {-0.37/26 Komodo 7/Pacificrabbit}) 25... Rxd6 {-0.55/0} (25...
Rxd6 26. Nb3 Rc8 {-0.60/22 Deep Rybka 4 x64/Clare}) (25... Rxd6 26. Nb3 Rc8 {
-0.34/25 Komodo 7/Pacificrabbit}) (25... Rxd6 26. Nb3 Rc8 {-0.34/29 Deep Fritz
13/Pacificrabbit}) 26. Nb3 {-0.42/0} (26. Nb3 Rc8 27. Na5 {-0.55/29 Komodo 9.01
}) (26. Nb3 Rc8 27. Rf1 {-0.28/34}) (26. Nb3 Rc8 27. Na5 {-0.47/19 Fritz 11 SE
}) 26... Rc8 {-0.30/0} (26... Rc8 27. Na5 Rc2 {-0.42/24 Houdini 3 x64}) (26...
Rc8 27. Na5 Rc2 {-0.46/25 Deep Fritz 14}) (26... Rc8 27. Rf1 Kf7 {-0.35/35
Stockfish 5/Hypekiller5000}) 27. Rf1 {-0.73/0} (27. Na5 Kf8 28. Nc6 {-0.30/26
Komodo 8/rich1chess}) (27. Na5 Rc2 28. Nc6 {-0.33/24 Komodo 7/Pacificrabbit}) (
27. Na5 Rc2 28. Nc6 {-0.27/26 Houdini 4 x64}) 27... Kf7 {-0.65/0} (27... Rc2
28. Rf2 Rxf2 {-0.73/28 Deep Fritz 13}) (27... Kf7 28. Na5 g5 {-0.41/33
Stockfish 6/jernjoffen}) (27... Kf8 28. Nc1 Kf7 {-0.68/24 Komodo 8}) 28. Na5 {
-0.74/0} (28. Na5 Rc2 29. Nc6 {-0.65/28 Komodo 8/TwoKnights}) (28. Na5 Rc2 29.
Nc6 {-0.60/24 Deep Fritz 14 x64}) (28. Na5 Rc2 29. Rf2 {-0.58/29 Komodo 7/
Pacificrabbit}) 28... Rc2 {-0.32/0 Black threatens to win material: Rc2xb2} (
28... Rc2 29. Nc6 Rxb2 {-0.74/20 Fritz 11 SE}) (28... Rc2 29. Nc6 Rxb2 {
-0.69/26 Houdini 4 x64/derkranvonhuenge}) (28... Rc2 29. Rf2 Rxf2 {-0.59/28
Komodo 7/Pacificrabbit}) 29. Rf2 {-0.36/0} (29. Rf2 Rc1+ 30. Rf1 {-0.32/32
Stockfish 5}) (29. Rf2 Rc1+ 30. Rf1 {-0.75/30 Deep Fritz 13/Pacificrabbit}) (
29. Rf2 Rxf2 30. Kxf2 {-0.54/25 Houdini 3 x64}) 29... Rc1+ {-0.33/0} (29...
Rc1+ 30. Rf1 Rxf1+ {-0.36/29}) (29... Rxf2 30. Kxf2 g5 {-0.59/28 Komodo 7/
Pacificrabbit}) (29... Rc1+ 30. Rf1 Rxf1+ {-0.27/25 Houdini 3 w32}) 30. Rf1 {
-0.96/0} (30. Rf1 Rc2 31. Rf2 {-0.33/36 Stockfish 5 SE}) (30. Rf1 Rxf1+ {
-0.64/29 Komodo 8/derkranvonhuenge}) (30. Rf1 Rxf1+ 31. Kxf1 {-0.62/30 Komodo
7/Pacificrabbit}) 30... Rxf1+ {-0.62/0} (30... Rxf1+ 31. Kxf1 Kf6 {-0.96/26
Deep Rybka 4 x64/Clare}) (30... Rxf1+ 31. Kxf1 Kf6 {-0.55/30 Houdini 4 x64}) (
30... Rxf1+ 31. Kxf1 Kf6 {-0.60/28 Komodo 7/Pacificrabbit}) 31. Kxf1 {-0.53/0}
(31. Kxf1 Kf6 32. Nc6 {-0.62/29 Komodo 8}) (31. Kxf1 g5 32. Nc6 {-0.36/39
Stockfish 5 SE/Clare}) (31. Kxf1 g5 32. Nc6 {-0.60/29 Komodo 7/Pacificrabbit})
31... g5 {-0.54/0} (31... Rh6 32. Nc6 Kf6 {-0.53/28 Komodo 8}) (31... Rh6 32.
Nc6 {-0.57/26 Komodo 8}) (31... g5 32. Nc6 Kf6 {-0.29/21 Stockfish 6}) 32. Nc6
{-0.88/0 White threatens to win material: Nc6xe5. An ideal square for the
white knight.} (32. Nc6 Kf6 33. g4 {-0.54/32 Komodo 9.02/ErnstH}) (32. Nc6 Kf6
33. g3 {-0.55/28 Komodo 8/derkranvonhuenge}) (32. Nc6 Kf6 33. g4 {-0.59/28
Komodo 7/Pacificrabbit}) 32... Kf6 {-0.68/0} (32... Kf6 33. Ke2 Rd7 {-0.88/26
Fritz 13}) (32... Kf6 33. g4 fxg3 {-0.47/29 Komodo 7/Pacificrabbit}) (32... Kf6
33. g4 Rd7 {-0.35/28 Houdini 1.5 x64}) 33. b4 {-0.75/0} (33. b4 h5 34. h3 {
-0.68/29 Komodo 8}) (33. g4 Rd7 34. a3 {-0.93/27 Deep Rybka 4 x64/Clare}) (33.
g4 Rd7 34. Kg2 {-0.47/26 Komodo 7/Pacificrabbit}) 33... Rd7 {-0.86/0} (33...
Rd7 34. h3 h5 {-0.75/31 Komodo 8/TwoKnights}) (33... Rd7 34. h3 {-0.38/43
Stockfish 6}) (33... Rd7 34. Ke2 h5 {-0.80/29 Komodo 7/Pacificrabbit}) 34. h3 {
-0.96/0} (34. Ke2 Rg7 35. Kf2 {-0.86/28 Deep Fritz 13/jernjoffen}) (34. Kf2 h5
35. h3 {-0.77/29 Komodo 7/Pacificrabbit}) (34. Kf2 Rc7 35. g3 {-0.55/26 Komodo
6/Freeze1}) 34... h5 {-0.53/0} (34... Rg7 35. a3 Rd7 {-0.96/28 Fritz 13}) (
34... h5 35. Kf2 Rg7 {-0.58/24 Deep Fritz 14/derkranvonhuenge}) (34... h5 {
-0.66/30 Komodo 7/Pacificrabbit}) 35. Kf2 {-1.04/0} (35. Kf2 Rg7 36. g3 {
-0.53/24 Deep Fritz 14}) (35. Ke2 Rg7 36. Kf2 {-0.85/27 Komodo 7/Pacificrabbit}
) (35. Ke2 Rg7 36. Kf2 {-0.93/28 Deep Fritz 13}) 35... Rg7 {-0.52/0} (35... Rg7
36. g3 Rd7 {-1.04/28 Fritz 13}) (35... Rg7 36. g4 fxg3+ {-0.27/45}) (35... Rc7
36. Ke2 Rg7 {-1.10/29 Deep Fritz 13/Pacificrabbit}) 36. Kf1 {-1.25/0} (36. g4
fxg3+ 37. Kxg3 {-0.52/42 Stockfish 6}) (36. g3 Rc7 37. Kg2 {-0.56/29 Komodo 7/
Pacificrabbit}) (36. g3 g4 {-0.60/23 Deep Fritz 14}) (36. g4 fxg3+ 37. Kxg3 Rg8
$15) 36... g4 $17 {-0.82/0} (36... g4 37. h4 gxf3 {-1.25/31 Komodo 6/Clare}) (
36... g4 37. h4 gxf3 {-0.91/49 Stockfish 5}) (36... g4 37. h4 gxf3 {-1.10/29
Deep Fritz 13/Pacificrabbit}) 37. hxg4 $6 {-1.95/0} (37. h4 gxf3 38. gxf3 {
-0.82/25 Deep Fritz 14 x64/cxi}) (37. h4 Rg8 38. Kf2 {-0.89/31 Houdini 4 x64})
(37. h4 Rg6 38. Kf2 {-1.29/29}) (37. h4 Rh7 $17) 37... hxg4 $19 {-2.10/0} (
37... hxg4 38. a3 g3 {-1.95/24 Deep Fritz 14 x64}) (37... hxg4 38. Kf2 g3+ {
-1.78/55}) (37... hxg4 {-2.25/31 New Engine}) 38. Kf2 (38. Nb8 g3 39. Nc6 {
-2.10/39 Komodo 9.1/Freeze1}) (38. fxg4 Rxg4 {-2.05/28 Komodo 6/Clare}) (38.
Kf2 g3+ 39. Kg1 {-1.47/51 Stockfish 6}) 38... g3+ (38... g3+ 39. Kg1 Rh7 40.
Nb8 {-1.39/54 Stockfish 6/Tennistoody}) (38... g3+ 39. Kg1 Rb7 40. Nd8 {
-1.46/61 Stockfish 5 SE/Kaos_00}) (38... g3+ 39. Kg1 Rh7 40. a3 {-2.21/30
Fritz 13}) 1/2-1/2
[/pgn]
Blundercheck
[pgn][Event "Vienna"]
[Site "Vienna"]
[Date "1859.??.??"]
[Round "?"]
[White "Lenhof"]
[Black "Wilhelm Steinitz"]
[Result "0-1"]
[ECO "C23"]
[Annotator "Stockfish 020316 64 BMI2 (12m)"]
[PlyCount "90"]
[EventDate "1859.??.??"]
{C40: Latvian and Elephant Gambits} 1. e4 e5 2. Bc4 {0.10/31 last book move
last book move} f5 {0.70/30} (2... Nf6 $5 {0.12/29} 3. Nf3 {-0.42/31} ({
Stockfish 020316 64 BMI2:} 3. d3 {0.12/29}) 3... Nxe4 {-0.38/29} 4. Nxe5 {
-0.43/31} d5 $15 {-0.39/31}) ({Stockfish 020316 64 BMI2:} 2... Nf6 3. d3 c6 4.
Nf3 d5 5. Bb3 Bb4+ 6. Bd2 Bxd2+ 7. Nbxd2 Bg4 8. exd5 cxd5 9. O-O Nc6 10. Qe1
Qe7 11. Ba4 Nd7 12. c4 dxc4 13. d4 Bxf3 14. Nxf3 O-O 15. Bxc6 bxc6 16. Nxe5
Nxe5 17. dxe5 Rfe8 18. f4 f6 19. Rc1 fxe5 20. Rxc4 exf4 21. Qxe7 Rxe7 22. Rfxf4
Rd8 23. Rxc6 Re2 {0.10/31}) 3. d3 $14 {0.67/30} Nf6 {0.77/28} 4. Nf3 {0.68/30}
d5 {0.94/30} (4... Nc6 {0.77/30} 5. O-O {0.69/31} Bc5 {0.80/28} 6. Nc3 {0.65/29
} fxe4 {0.80/30} ({Stockfish 020316 64 BMI2:} 6... f4 7. d4 Bxd4 8. Nxd4 Nxd4
9. Bxf4 d6 10. Bg5 c6 11. f4 h5 12. f5 Bd7 13. Bd3 Qa5 14. Ne2 Nxe2+ 15. Qxe2
O-O-O 16. Rab1 h4 17. b4 Qc7 18. h3 Kb8 19. c4 d5 20. exd5 cxd5 21. cxd5 Be8
22. Rfe1 Rxd5 23. Bc4 {0.65/29}) 7. dxe4 $14 {0.75/29}) ({Stockfish 020316 64
BMI2:} 4... Nc6 5. O-O Bc5 6. Nc3 fxe4 7. dxe4 d6 8. Bg5 Bg4 9. h3 Bxf3 10.
Qxf3 Nd4 11. Qd3 c6 12. a3 b5 13. Ba2 a5 14. a4 b4 15. Ne2 Nxe2+ 16. Qxe2 Qe7
17. Bb3 h6 18. Bd2 Bd4 19. Rfb1 Rb8 20. c3 Bc5 21. Qf3 Qd7 22. Re1 bxc3 23.
Qxc3 {0.68/30}) 5. exd5 $16 {0.89/30} Bd6 {0.99/31} 6. O-O {0.96/29} O-O {
0.95/26} 7. Nc3 {0.85/30} a6 {1.00/29} 8. a4 {0.87/29} h6 {0.91/29} 9. d4 {
0.76/29} e4 {1.00/36} ({Stockfish 020316 64 BMI2:} 9... Nbd7 10. Nxe5 Nxe5 11.
dxe5 Bxe5 12. Qd3 f4 13. f3 Nh5 14. Ne2 Bf5 15. Qb3 Qd6 16. Bd2 Rab8 17. Rfc1
b5 18. axb5 axb5 19. Bd3 Bxd3 20. cxd3 Rfd8 21. Bc3 Bxc3 22. Qxc3 Qxd5 23. d4
Qc4 24. Qd2 Qf7 25. Rc6 Re8 26. Nc3 {0.76/29}) 10. Ne5 {0.92/32} Nbd7 {1.02/32}
11. Nxd7 {0.00/34} (11. f4 $5 $16 {0.79/29 11...Bxd7 0.00}) ({Stockfish
020316 64 BMI2:} 11. f4 exf3 12. Nxf3 Ne4 13. Bb3 b6 14. Be3 Ndf6 15. Ne5 Nxc3
16. bxc3 a5 17. Qd3 Ba6 18. c4 Nxd5 19. Rxf5 Rxf5 20. Qxf5 Bxe5 21. Qxe5 Nxe3
22. Qxe3 Kh8 23. Re1 Qd6 24. c5 bxc5 25. dxc5 Qd7 26. Qe4 Rf8 27. Bd5 Qf5 28.
Qxf5 Rxf5 29. Re8+ Kh7 30. Bg8+ Kg6 31. Re6+ Rf6 {1.02/32}) 11... Bxd7 {0.00/34
} 12. f3 {0.00/32 Secures g4} Qe8 {0.11/32} ({Stockfish 020316 64 BMI2:} 12...
exf3 13. Qxf3 Ng4 14. g3 g5 15. h3 Nf6 16. Bd3 Qe7 17. Bxf5 Ne4 18. Qxe4 Bxf5
19. Rxf5 Rxf5 20. Qxf5 Qe1+ 21. Qf1 Qxg3+ 22. Qg2 Qe1+ 23. Qf1 Qg3+ {0.00/32})
13. fxe4 {0.15/36} fxe4 {0.17/35 Black has a new passed pawn: e4.} 14. Bf4 {
0.13/36} Qg6 {0.22/32} 15. Bxd6 {0.12/36} cxd6 {0.15/33} 16. Qe2 {0.10/34} (16.
Qd2 {0.08/37} Ng4 {0.09/34} 17. Qe2 {0.18/34} Rac8 $11 {0.23/30}) ({Stockfish
020316 64 BMI2:} 16. Qd2 Ng4 17. Qe2 Rac8 18. b3 e3 19. Bd3 Bf5 20. Rxf5 Rxf5
21. h3 Rxc3 22. hxg4 Rf2 23. Qxe3 Rf6 24. Re1 Qxg4 25. Bh7+ Kxh7 26. Qxc3 Qf5
27. Qd2 Qxd5 28. Qd3+ Rg6 29. g3 Qh5 30. Re8 Qh3 31. Rh8+ Kxh8 32. Qxg6 d5 33.
Kf2 Qc8 34. Ke2 b5 35. axb5 axb5 36. Qd3 Qe6+ 37. Qe3 {0.15/33}) 16... Rae8 {
0.50/36} (16... Bg4 {0.18/32 17.Qe3 0.50} 17. Qe1 $11 {0.17/31}) ({Stockfish
020316 64 BMI2:} 16... Rac8 17. b3 Bg4 18. Qd2 Rce8 19. Rae1 Bf3 20. Qf2 Nh5
21. Kh1 e3 22. Qg1 Be4 23. Rxf8+ Kxf8 24. Qf1+ Kg8 25. Nxe4 Qxe4 26. Qf3 Qxf3
27. gxf3 Nf4 28. Kg1 Kf8 29. Bd3 Nxd3 30. cxd3 Rc8 31. Rxe3 Rc3 32. Re6 Rxb3
33. Rxd6 Rxd3 34. Rd8+ Ke7 35. Rb8 Rb3 36. Kf2 b5 37. axb5 Rxb5 38. Rg8 Kf6 39.
Ra8 a5 40. Ra6+ Ke7 41. Ke3 Rxd5 42. Kd3 Rh5 43. Kc4 Rxh2 44. Rxa5 {0.10/34})
17. Rf4 {-0.12/34 e4 draws heavy fire} (17. Qe3 {0.53/32 17...Bg4 -0.12} Ng4 {
0.80/34} ({Stockfish 020316 64 BMI2:} 17... b5 18. axb5 Rc8 19. Bb3 axb5 20.
Ne2 Nh5 21. Rxf8+ Rxf8 22. Rf1 Rxf1+ 23. Kxf1 Qf6+ 24. Kg1 Qh4 25. Nc3 Nf6 26.
Qd2 Bf5 27. Nd1 Bg6 28. Qf2 Qg5 29. Qe3 Qg4 30. Nc3 Be8 31. Qd2 Bh5 32. Qe1 Be8
33. Nd1 Qf4 34. Qe3 Qg4 35. c3 Bf7 36. Qf2 Qh5 37. Ne3 Ng4 38. Nxg4 Qxg4 39.
Qe3 Qf5 40. Qe2 {0.53/32}) 18. Qg3 {0.68/33} h5 $14 {0.59/30}) ({Stockfish
020316 64 BMI2:} 17. Qe3 b5 18. axb5 Rc8 19. Bb3 axb5 20. Ne2 Nh5 21. Rxf8+
Rxf8 22. Rf1 Rxf1+ 23. Kxf1 Qf6+ 24. Kg1 Qh4 25. Nc3 Nf6 26. Qd2 Bf5 27. Nd1
Bg6 28. Ne3 Ng4 29. h3 Nxe3 30. Qxe3 Qf6 31. c4 bxc4 32. Bxc4 Qf5 33. b4 Bf7
34. g4 Qc8 35. Qe2 Qe8 36. b5 e3 37. Qc2 Kf8 38. b6 e2 39. Qxe2 Qxe2 40. Bxe2
Bxd5 41. Kh2 {0.50/36}) 17... Re7 {0.43/30} (17... h5 {0.00/34 18.Qe3 0.43}
18. Qe3 {0.00/37} Ng4 {0.00/39} 19. Rxf8+ {0.00/39} Rxf8 {0.00/37} 20. Qxe4 $11
{0.00/35}) ({Stockfish 020316 64 BMI2:} 17... Bg4 18. Qe1 e3 19. Be2 Bf5 20.
Rf3 Bxc2 21. Qc1 Bb3 22. Rxe3 Nxd5 23. Rxe8 Qxe8 24. Bf3 Nb4 25. Qd2 Qg6 26.
Be4 Qf7 27. Bf3 a5 28. Nb5 Qd7 29. Qc3 Bxa4 30. Nxd6 Bc6 31. Nc4 Bxf3 32. Ne5
Qd5 33. Nxf3 Nc6 34. Rc1 Rd8 35. Qc4 Qxc4 36. Rxc4 Kf7 37. Kf2 Ke6 38. Ke3 Kd6
{-0.12/34}) 18. Re1 {0.25/30} (18. Qe3 {0.59/32 18...Rc8 0.25} Rff7 {0.68/33}
19. Be2 {0.62/30} Bg4 $14 {1.02/32} ({Stockfish 020316 64 BMI2:} 19... Qg5 20.
Raf1 Bc8 21. h4 Qg6 22. Re1 Bd7 23. Rff1 Rf8 24. a5 Ref7 25. Qf4 Nh5 26. Qxe4
Rxf1+ 27. Rxf1 Rxf1+ 28. Bxf1 Bf5 29. Qe3 Bxc2 30. Qe6+ Kf8 31. Qxg6 Bxg6 32.
Kf2 Nf6 33. g3 Bf7 34. Bc4 Ke7 35. Ke3 g5 36. b4 Ng4+ 37. Kf3 Nf6 38. hxg5 {
0.62/30})) ({Stockfish 020316 64 BMI2:} 18. Qe3 Qg5 19. Be2 Kh7 20. Raf1 Rfe8
21. Re1 Bh3 22. Qf2 Bd7 23. a5 Bh3 24. Bf1 Bd7 25. Bc4 Bh3 26. Be2 Bd7 27. Ra1
Bh3 28. Ra3 h5 29. Ra1 Kg8 30. Rf1 Qg6 31. Rxf6 gxf6 32. Qg3 Qxg3 33. hxg3 Bg4
34. Rxf6 e3 35. Rg6+ Kf7 36. Rxd6 {0.43/30}) 18... Rfe8 {0.74/32} (18... Rff7
$142 $11 {0.40/31 19.Qe3 0.74}) ({Stockfish 020316 64 BMI2:} 18... Rc8 19. Qf1
Ree8 20. Be2 Re7 21. a5 Rce8 22. Rc1 h5 23. h4 Rf8 24. Qf2 e3 25. Qf3 Bg4 26.
Qg3 Bf5 27. Qxg6 Bxg6 28. Rff1 Rfe8 29. Kh1 Kh7 30. Rf3 Be4 31. Rg3 Rf8 32. Rg5
Ree8 33. Kg1 Bg6 34. Rg3 {0.25/30}) 19. Qf2 $4 {-1.48/33 letting the wind out
of his own sails} (19. Qe3 $142 $16 {0.62/31 19...Nh5 -1.48}) ({Stockfish
020316 64 BMI2:} 19. Qe3 b5 20. axb5 Rc8 21. Bb3 axb5 22. h3 Qg5 23. Ne2 Kh7
24. h4 Qg6 25. c3 Ra8 26. Rff1 Qg4 27. Qf4 Ra6 28. Ng3 e3 29. Qxg4 Bxg4 30.
Bc2+ Kg8 31. Bf5 Re8 32. Bxg4 Nxg4 33. Rf3 Ra2 34. Nf5 Rxb2 35. Nxd6 Rd8 36.
Nf5 {0.74/32}) 19... Nh5 $17 {-1.37/33} 20. Rh4 {-1.44/38} Rf7 {0.00/35 Black
threatens to win material: Rf7xf2} (20... Rf8 $5 {-1.44/39 21.Qd2 0.00
deserves consideration} 21. Qd2 {-1.52/40} b5 {-1.55/39} 22. axb5 {-1.57/38}
axb5 {-1.54/38} 23. Nxb5 {-1.54/38} e3 {-1.43/42} 24. Rxe3 {-1.43/40} Qg5 {
-1.44/41} 25. Rxh5 {-1.39/39} Qxe3+ {-1.51/39} 26. Qxe3 {-1.44/41} Rxe3 $17 {
-1.44/35}) ({Stockfish 020316 64 BMI2:} 20... Rf8 21. Qd2 b5 22. axb5 axb5 23.
Nxb5 e3 24. Rxe3 Qg5 25. Rxh5 Qxe3+ 26. Qxe3 Rxe3 27. h3 Rf6 28. Nc7 Bf5 29.
Rxf5 Rxf5 30. Bd3 Rf7 31. Nb5 Rf6 32. Nc7 Kf7 33. b4 g5 34. Kh2 Rf4 35. Ne6 Rf2
36. b5 Rxd3 37. cxd3 Rb2 38. h4 Rxb5 39. hxg5 Rxd5 40. Nf4 Rxg5 41. Kh3 Kf6 42.
g3 Kf5 43. Nd5 Ke6 44. Nf4+ Kd7 45. Kg2 Ra5 46. Kf3 Kc6 47. Kf2 Rf5 48. Kf3 Rf8
49. Ke3 Re8+ 50. Kf3 {-1.44/38}) 21. Qd2 $11 {0.00/32} Nf6 {0.00/37} 22. h3 {
-1.77/37 Prevents intrusion on g4} (22. Rf4 {0.00/37 22...Qg3 -1.77} e3 {
0.00/38} 23. Rxe3 {0.00/39} Rxe3 {0.00/38} 24. Qxe3 {0.00/37} Qxc2 $11 {0.00/35
}) ({Stockfish 020316 64 BMI2:} 22. Rf4 e3 23. Rxe3 Rxe3 24. Qxe3 Qxc2 25. h3
Qxb2 26. Rf1 Qb6 27. Bd3 Qc7 28. Bg6 Rf8 29. Rf3 Qd8 30. Qd3 Qa5 31. Qe3 Qd8 {
0.00/37}) 22... Qg5 {-0.19/35 Black prepares the advance e3. Black threatens
to win material: Qg5xd2. Black forks: d2+h4} (22... Qg3 $142 {-1.71/37 23.Qf4
-0.19} 23. Rhxe4 {-1.74/39} Nxe4 {-1.68/34} 24. Rxe4 {-1.70/35} Ref8 $17 {
-1.58/33}) ({Stockfish 020316 64 BMI2:} 22... Qg3 23. Rexe4 Nxe4 24. Rxe4 Ref8
25. Re3 Rf2 26. Rxg3 Rxd2 27. Ne4 Rxc2 28. b3 Bxa4 29. Nxd6 b5 30. Bd3 Rc1+ 31.
Kh2 Bxb3 32. Nf5 Rxf5 33. Bxf5 Bxd5 34. Ra3 Rc6 35. g4 Kf7 36. Kg3 g6 37. Bb1
Rf6 38. h4 b4 39. Ra5 Rf3+ 40. Kh2 Bc4 41. Rc5 Bb5 42. Rc7+ Kf6 43. Rb7 Re3 44.
Rb6+ Re6 45. g5+ hxg5 46. hxg5+ Ke7 47. Rb8 Kd6 48. Kg3 b3 49. Kf4 Re8 50. Rxe8
Bxe8 51. Ke3 a5 52. Kd2 {-1.77/37}) 23. Qf4 $11 {-0.31/33 White threatens to
win material: Qf4xd6} Nh7 {1.53/33} (23... b5 $142 {-0.20/33 24.Qxg5 1.53 is
the best option Black has} 24. axb5 {-0.27/31} Rc8 $11 {-0.14/32}) ({Stockfish
020316 64 BMI2:} 23... b5 24. axb5 Rc8 25. Bb3 axb5 26. Ne2 Re8 27. c3 Bf5 28.
Bc2 Bg6 29. Ra1 Rff8 30. Ng3 Qxd5 31. Qe3 Rf7 32. Rf4 Qc4 33. Qe1 b4 34. Ra4
Rb8 35. Nf1 Qc6 36. Bb3 d5 37. cxb4 Qd6 38. Qd2 Re8 39. Qe3 Rd8 40. b5 Qb6 41.
Qe2 Ra7 42. Rxa7 Qxa7 43. Qd2 Qb6 {-0.31/33}) 24. Qxg5 $16 {1.48/32} Nxg5 {
1.53/31} (24... hxg5 $2 {2.66/33 25.a5 1.53} 25. Rhxe4 {2.51/32} Rc8 {2.76/31}
26. Bd3 $18 {2.54/31}) 25. Rf1 {1.32/34} (25. a5 {1.44/35} Rc8 {1.53/32} 26.
Bb3 {1.58/33} Re8 $16 {1.63/29}) 25... Rfe7 {1.47/31} (25... Bf5 {1.29/35} 26.
Rhf4 {1.25/33} Rc7 {1.33/32} 27. Be2 $16 {1.26/32}) 26. Rhf4 {1.12/32} ({
Stockfish 020316 64 BMI2:} 26. Be2 Rc8 27. a5 e3 28. Bd3 Rb8 29. Re1 b6 30.
axb6 Rxb6 31. b3 Rb8 32. Rf4 Bxh3 33. Bxa6 Bd7 34. Bd3 Be8 35. Nd1 Bf7 36. Nxe3
Bxd5 37. Rff1 Rbe8 38. Bb5 Rb8 39. c4 Bb7 40. Nf5 Re4 41. Nxd6 Rxd4 42. Nxb7
Rxb7 {1.47/31}) 26... e3 {1.12/32} 27. Re1 {1.15/36} Bxh3 {1.13/36} 28. Bd3 {
1.09/34} Bd7 {1.11/30} 29. b3 {0.67/35} ({Stockfish 020316 64 BMI2:} 29. a5 Rb8
30. Nd1 b6 31. axb6 e2 32. Nc3 Rxb6 33. b3 Be8 34. Rxe2 Rxe2 35. Nxe2 Bf7 36.
Nc3 Rb8 37. Kf2 Re8 38. Rh4 Rc8 39. Ne4 Nxe4+ 40. Bxe4 Re8 41. Kf3 Rb8 42. Ke2
a5 43. Kd3 Be8 44. Rh1 a4 45. bxa4 Ra8 46. c4 Rxa4 47. c5 {1.11/30}) 29... Nh7
$2 {2.50/35} (29... h5 $14 {0.94/33 30.Ne4 2.50}) ({Stockfish 020316 64 BMI2:
} 29... Rc8 30. Ne4 Nxe4 31. Rxe3 Rce8 32. Rfxe4 Rxe4 33. Rxe4 Rxe4 34. Bxe4 a5
35. Bg6 Kf8 36. c3 Ke7 37. Kf2 Bg4 38. Bc2 h5 39. Ke3 g5 40. b4 b6 41. b5 h4
42. c4 Kd7 43. Kd2 Kc7 44. Bd3 Bd7 45. Ke2 Bg4+ 46. Ke1 Bd7 47. Bg6 Bg4 48. Kd2
Bd7 49. Ke3 {0.67/35}) 30. Nd1 $4 {0.00/37 forfeits the advantage} (30. Ne4
$142 {2.47/34 30...Nf6 0.00 White would have gained the upper hand} g5 {
2.52/32} 31. Nf6+ {2.46/32} Kf7 {2.68/32} 32. Nxe8+ {2.52/33} gxf4 {2.71/29}
33. Nxd6+ {2.51/31} Kf6 {2.73/33} 34. Rf1 $18 {2.60/31}) ({Stockfish 020316 64
BMI2:} 30. Ne4 g5 31. Nf6+ Kh8 32. Rf3 g4 33. Rff1 e2 34. Rf4 Nxf6 35. Rxf6 g3
36. Rxd6 h5 37. Rh6+ Kg8 38. Rxh5 Re3 39. Rh4 R8e7 40. d6 Re8 41. a5 Bb5 42.
Rg4+ Kf8 43. Bxb5 axb5 44. Rf4+ Kg7 45. Rf3 Rxf3 46. gxf3 Kf6 47. c4 bxc4 48.
bxc4 Re3 49. Kg2 Ke6 50. c5 Kd7 51. Kxg3 Kc6 52. Kf2 {2.50/35}) 30... Nf6 $11 {
0.00/34} 31. c4 {0.00/39} Ng4 {1.71/35} (31... e2 {0.00/38 32.Bg6 1.71} 32.
Nb2 $11 {0.00/35}) ({Stockfish 020316 64 BMI2:} 31... e2 32. Nb2 b5 33. cxb5
axb5 34. axb5 Rb8 35. Rxe2 Rxe2 36. Bxe2 Bxb5 37. Bg4 Nxg4 38. Rxg4 Rc8 39. Rg6
Rc3 40. Nc4 Bxc4 41. bxc4 Rxc4 42. Rxd6 Rxd4 43. Kf2 Rd2+ 44. Kf3 Kf7 45. Rd7+
Kf6 46. g4 Rd4 47. d6 g6 48. Rh7 Rxd6 49. Rxh6 {0.00/39}) 32. Rf3 {0.00/46} (
32. Bg6 $142 {1.62/33 32...Nf2 0.00} Rb8 {1.77/38} 33. Nc3 $16 {1.77/35}) ({
Stockfish 020316 64 BMI2:} 32. Bg6 {1.71/35}) 32... Nf2 $11 {0.00/45 Black
threatens to win material: Nf2xd3} 33. Bg6 {0.00/46} (33. Nxf2 {-6.50/29 33...
Nxd1 0.00} exf2+ {-6.34/29 Passed pawn}) 33... Nxd1 {0.00/45 Decoy: d1} 34.
Bxe8 {0.00/46} (34. Rxd1 {0.00/44} Bg4 {0.00/42 Decoy}) 34... Rxe8 {0.00/44}
35. Rxd1 {0.00/42 White wins the exchange} Bg4 {0.00/37 Black threatens to win
material: Bg4xf3} 36. Re1 {0.00/44} Bxf3 {0.00/41} 37. gxf3 {0.00/38 A rook
endgame occured} Kf7 {0.00/35} 38. c5 {0.00/45} dxc5 {0.00/45} 39. dxc5 {
0.00/41 White has a new passed pawn: d5} Re5 {0.00/54} 40. c6 {0.00/51} bxc6 {
0.00/51} 41. dxc6 {0.00/42} Ke6 {0.00/44} 42. Kf1 {0.00/41} e2+ {0.00/49} 43.
Rxe2 $4 {-123.41/60 a weak move, ruining a winning position.} (43. Kf2 $142 $11
{0.00/46 43...Rxe2 -123.41 would be a reprieve}) ({Stockfish 020316 64 BMI2:}
43. Kf2 Kd6 44. b4 Kxc6 45. Rxe2 Rxe2+ 46. Kxe2 Kd5 47. Kd3 h5 48. Ke3 Kd6 49.
b5 axb5 50. axb5 {0.00/49}) 43... Rxe2 $19 {-123.41/59} 44. Kxe2 {-123.41/56}
a5 {-123.42/57} 45. f4 {-123.43/56} g6 {-123.43/57} 0-1
[/pgn]