lichess.org

FEN
[Event "WMCCC 1980"] [Site "https://lichess.org/RYPXlx5A"] [Date "1980.09.05"] [Round "3"] [White "Chess Challenger"] [Black "Boris Experimental"] [Result "1-0"] [WhiteElo "?"] [BlackElo "?"] [Variant "Standard"] [TimeControl "-"] [ECO "C70"] [Opening "Ruy Lopez: Morphy Defense, Graz Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 { [%eval 0.26] } 1... e5 { [%eval 0.19] } 2. Nf3 { [%eval 0.27] } 2... Nc6 { [%eval 0.28] } 3. Bb5 { [%eval 0.21] } 3... a6 { [%eval 0.23] } 4. Ba4 { [%eval 0.16] } 4... b5 { [%eval 0.22] } 5. Bb3 { [%eval 0.29] } 5... Bc5 { [%eval 0.58] } { C70 Ruy Lopez: Morphy Defense, Graz Variation } 6. c3 { [%eval 0.65] } 6... Nf6 { [%eval 1.16] } 7. d4 { [%eval 1.11] } 7... exd4 { [%eval 1.13] } 8. e5 { [%eval 1.14] } 8... Qe7? { (1.14 → 2.80) Mistake. Ng4 was best. } { [%eval 2.8] } (8... Ng4 9. O-O d3 10. Qxd3 Qe7 11. Bf4 d6 12. exd6 cxd6 13. Nbd2 Nce5 14. Bxe5 Nxe5 15. Nxe5) 9. cxd4?! { (2.80 → 1.73) Inaccuracy. O-O was best. } { [%eval 1.73] } (9. O-O) 9... Bb4+ { [%eval 1.77] } 10. Kf1?! { (1.77 → 1.22) Inaccuracy. Nc3 was best. } { [%eval 1.22] } (10. Nc3 Ne4) 10... Ng8 { [%eval 1.52] } 11. Bf4 { [%eval 1.14] } 11... Na5 { [%eval 1.62] } 12. a3? { (1.62 → 0.13) Mistake. Bc2 was best. } { [%eval 0.13] } (12. Bc2 Qd8 13. d5 Bb7 14. a3 Bf8 15. b3 Ne7 16. Nc3 Ng6 17. Bxg6 hxg6 18. h4 Rc8) 12... Nxb3 { [%eval 0.27] } 13. Qxb3 { [%eval 0.18] } 13... Ba5 { [%eval 0.29] } 14. Nc3 { [%eval 0.0] } 14... Bb7 { [%eval -0.11] } 15. d5 { [%eval -0.35] } 15... O-O-O?? { (-0.35 → 1.39) Blunder. Bxc3 was best. } { [%eval 1.39] } (15... Bxc3 16. Qxc3 Bxd5 17. Nd4 Qh4 18. Bg3 Qh6 19. Qxc7 Qd2 20. Qc3 Qxc3 21. bxc3 Ne7 22. f3) 16. Rc1 { [%eval 0.87] } 16... f6? { (0.87 → 2.04) Mistake. Kb8 was best. } { [%eval 2.04] } (16... Kb8 17. h4) 17. exf6?? { (2.04 → 0.00) Blunder. Ne4 was best. } { [%eval 0.0] } (17. Ne4 Qf8 18. Bd2 Bxd2 19. Nfxd2 fxe5 20. d6 Nf6 21. Qe3 Nxe4 22. Rxc7+ Kb8 23. Nxe4 Ka8) 17... Nxf6 { [%eval 0.0] } 18. d6 { [%eval 0.0] } 18... Qe6 { [%eval 0.0] } 19. Qxe6 { [%eval 0.0] } 19... dxe6 { [%eval 0.0] } 20. dxc7 { [%eval 0.0] } 20... Rd7 { [%eval 0.08] } 21. Ng5 { [%eval -0.39] } 21... Re8 { [%eval -0.41] } 22. Re1 { [%eval -0.57] } 22... h6 { [%eval -0.44] } 23. Nxe6?? { (-0.44 → -4.04) Blunder. Nf3 was best. } { [%eval -4.04] } (23. Nf3 g5 24. Be5 Nh5 25. b4 Bb6 26. Ne4 g4 27. Nh4 Rf8 28. Nc5 Rd2 29. Re2 Rd1+) 23... Rde7 { [%eval -3.91] } 24. b4 { [%eval -4.22] } 24... Bb6 { [%eval -4.04] } 25. a4?! { (-4.04 → -5.27) Inaccuracy. h4 was best. } { [%eval -5.27] } (25. h4 Nh5) 25... Rxe6 { [%eval -5.15] } 26. Rxe6 { [%eval -5.11] } 26... Rxe6 { [%eval -5.04] } 27. axb5 { [%eval -5.05] } 27... axb5 { [%eval -4.71] } 28. Be3?! { (-4.71 → -6.17) Inaccuracy. h4 was best. } { [%eval -6.17] } (28. h4 Ne4) 28... Bxc7?! { (-6.17 → -4.52) Inaccuracy. Bxe3 was best. } { [%eval -4.52] } (28... Bxe3 29. fxe3 Rxe3 30. Nd1 Re4 31. Kf2 Kxc7 32. Rf1 Rxb4 33. Kg1 Rb1 34. Ne3 Rxf1+ 35. Kxf1) 29. Bd4 { [%eval -5.46] } 29... Bc6 { [%eval -4.4] } 30. f3 { [%eval -4.3] } 30... Bd6 { [%eval -3.71] } 31. Na2?! { (-3.71 → -4.82) Inaccuracy. Kf2 was best. } { [%eval -4.82] } (31. Kf2 g5 32. Rd1 Nd7 33. Rb1 Ne5 34. Bxe5 Rxe5 35. Ne2 Rd5 36. Ng3 Kc7 37. Ne4 Be5) 31... Bd5 { [%eval -3.97] } 32. Nc3 { [%eval -3.84] } 32... Bc4+ { [%eval -3.94] } 33. Kf2 { [%eval -3.83] } 33... Bxb4 { [%eval -3.39] } 34. Rb1 { [%eval -3.31] } 34... Bd6 { [%eval -3.16] } 35. Nxb5 { [%eval -3.39] } 35... Bxh2 { [%eval -3.29] } 36. Nc3 { [%eval -3.13] } 36... Bd6 { [%eval -2.97] } 37. g3 { [%eval -3.47] } 37... Kd7 { [%eval -3.31] } 38. f4?! { (-3.31 → -4.25) Inaccuracy. Rb2 was best. } { [%eval -4.25] } (38. Rb2 Kd8 39. g4 Ke7 40. Rc2 g5 41. Ne2 Bd3 42. Rd2 Bxe2 43. Rxe2 Bg3+ 44. Kf1 Rxe2) 38... g6 { [%eval -4.12] } 39. Kf3 { [%eval -3.91] } 39... Nd5 { [%eval -3.23] } 40. Ne4 { [%eval -3.46] } 40... Be7 { [%eval -3.33] } 41. Rb7+ { [%eval -3.8] } 41... Kc6 { [%eval -3.7] } 42. Rb2 { [%eval -4.45] } 42... h5 { [%eval -4.14] } 43. Rc2 { [%eval -4.24] } 43... Kb5 { [%eval -4.2] } 44. Rb2+ { [%eval -4.47] } 44... Bb4?! { (-4.47 → -3.44) Inaccuracy. Nb4 was best. } { [%eval -3.44] } (44... Nb4) 45. Be5 { [%eval -3.42] } 45... Bd3 { [%eval -3.0] } 46. Nd6+?! { (-3.00 → -4.41) Inaccuracy. Nc3+ was best. } { [%eval -4.41] } (46. Nc3+ Nxc3 47. Bxc3 Re4 48. g4 hxg4+ 49. Kxg4 Kc5 50. Bd2 Rc4 51. Bxb4+ Rxb4 52. Ra2 Kd4) 46... Kc5 { [%eval -4.22] } 47. Rb3 { [%eval -5.07] } 47... Bc2 { [%eval -4.87] } 48. Nb7+ { [%eval -6.24] } 48... Kb6?! { (-6.24 → -4.50) Inaccuracy. Kc4 was best. } { [%eval -4.5] } (48... Kc4 49. Rb2 Bf5 50. Kg2 Ne3+ 51. Kf3 Ng4 52. Nd8 Ra6 53. Kg2 Be4+ 54. Kh3 Nxe5 55. fxe5) 49. Rb2 { [%eval -4.4] } 49... Rc6 { [%eval -4.25] } 50. Nd6 { [%eval -4.64] } 50... Bd1+ { [%eval -4.38] } 51. Ke4 { [%eval -4.74] } 51... Kc5 { [%eval -4.45] } 52. f5?! { (-4.45 → -6.37) Inaccuracy. Nb7+ was best. } { [%eval -6.37] } (52. Nb7+ Kc4) 52... Nc3+? { (-6.37 → -3.28) Mistake. gxf5+ was best. } { [%eval -3.28] } (52... gxf5+ 53. Kxf5 Rxd6 54. Bxd6+ Kxd6 55. Kg5 Bc3 56. Ra2 Bf6+ 57. Kg6 Be5 58. Ra3 Kc5 59. Kf5) 53. Kd3 { [%eval -3.25] } 53... gxf5 { [%eval -3.13] } 54. Nxf5 { [%eval -3.33] } 54... Nd5 { [%eval -2.73] } 55. Bd4+ { [%eval -3.02] } 55... Kb5 { [%eval -2.94] } 56. Be5 { [%eval -2.88] } 56... Kc5 { [%eval -2.91] } 57. Bd4+ { [%eval -2.89] } 57... Kb5 { [%eval -2.87] } 58. Be5 { [%eval -2.94] } 58... Ka4 { [%eval -2.75] } 59. Ra2+ { [%eval -2.77] } 59... Ba3 { [%eval -2.74] } 60. Kd4? { (-2.74 → -5.18) Mistake. Nd4 was best. } { [%eval -5.18] } (60. Nd4 Rc5) 60... Nc3 { [%eval -4.75] } 61. Ra1 { [%eval -4.7] } 61... Nb5+?! { (-4.70 → -3.29) Inaccuracy. Bg4 was best. } { [%eval -3.29] } (61... Bg4 62. Ne7 Re6 63. Nd5 Ne2+ 64. Ke4 Kb3 65. Rb1+ Kc2 66. Rb8 Nxg3+ 67. Kf4 Nf5 68. Rc8+) 62. Ke3 { [%eval -3.19] } 62... Bc2 { [%eval -3.04] } 63. Kf4 { [%eval -3.68] } 63... Rc4+ { [%eval -3.63] } 64. Kg5 { [%eval -3.69] } 64... Rg4+ { [%eval -3.53] } 65. Kf6 { [%eval -3.55] } 65... Rc4?? { (-3.55 → -1.22) Blunder. Rg8 was best. } { [%eval -1.22] } (65... Rg8 66. Ne7 Rf8+ 67. Kg5 Kb3 68. Nc6 Be4 69. Nd4+ Nxd4 70. Bxd4 Rf5+ 71. Kh4 Be7+ 72. Kh3) 66. Kg5?? { (-1.22 → -3.51) Blunder. Ne3 was best. } { [%eval -3.51] } (66. Ne3 Rc6+ 67. Kg5 Bb3 68. Bb2 Rc5+ 69. Kh4 Kb4 70. Bxa3+ Nxa3 71. g4 Re5 72. Ng2 hxg4) 66... Rg4+ { [%eval -3.51] } 67. Kf6 { [%eval -3.41] } 67... Kb3? { (-3.41 → -1.89) Mistake. Rg8 was best. } { [%eval -1.89] } (67... Rg8) 68. Rh1 { [%eval -2.1] } 68... Bxf5? { (-2.10 → -0.75) Mistake. Rg8 was best. } { [%eval -0.75] } (68... Rg8) 69. Kxf5 { [%eval -0.74] } 69... Nd6+ { [%eval -0.7] } 70. Ke6 { [%eval -0.7] } 70... Rg6+ { [%eval -0.79] } 71. Kd5 { [%eval -0.84] } 71... Nc4 { [%eval -0.69] } 72. Bf4 { [%eval -0.91] } 72... Rb6 { [%eval -0.9] } 73. Ke4 { [%eval -1.02] } 73... Rb5 { [%eval -1.02] } 74. Rd1 { [%eval -1.18] } 74... Bb2?! { (-1.18 → -0.66) Inaccuracy. Kc2 was best. } { [%eval -0.66] } (74... Kc2 75. Rh1 Nd6+ 76. Kf3 Ne8 77. g4 Rb3+ 78. Ke4 hxg4 79. Kf5 Rb5+ 80. Kxg4 Nf6+ 81. Kh3) 75. Re1?! { (-0.66 → -1.67) Inaccuracy. Rd5 was best. } { [%eval -1.67] } (75. Rd5 Rb4 76. Rxh5 Ne5+ 77. Ke3 Nd7 78. Rh4 Bf6 79. Rh1 Kc4 80. Ke4 Bb2 81. Rb1 Nc5+) 75... Be5?! { (-1.67 → -1.08) Inaccuracy. Ne5 was best. } { [%eval -1.08] } (75... Ne5 76. Rb1 Ng4 77. Bc1 Nf2+ 78. Kf3 Nd3 79. Bxb2 Kc2 80. Rf1 Rf5+ 81. Kg2 Rxf1 82. Kxf1) 76. Rb1+ { [%eval -1.07] } 76... Bb2 { [%eval -1.04] } 77. Re1?! { (-1.04 → -2.03) Inaccuracy. g4 was best. } { [%eval -2.03] } (77. g4 hxg4 78. Rg1 Rh5 79. Rg3+ Bc3 80. Rxg4 Rh1 81. Kf3 Re1 82. Kg2 Bd4 83. Bg5 Bc5) 77... Be5?? { (-2.03 → 0.00) Blunder. Ne5 was best. } { [%eval 0.0] } (77... Ne5 78. Rb1 Ng4 79. Bc1 Nf2+ 80. Kf3 Rf5+ 81. Kg2 Nd3 82. Bxb2 Kc2 83. Rh1 Kxb2 84. Rh4) 78. Rb1+ { [%eval 0.0] } 78... Ka4 { [%eval 0.08] } 79. Rxb5 { [%eval 0.08] } 79... Bxf4 { [%eval 0.08] } 80. Rc5 { [%eval 0.08] } 80... Kb4?? { (0.08 → Mate in 24) Checkmate is now unavoidable. Bxg3 was best. } { [%eval #24] } (80... Bxg3 81. Rxc4+ Kb3 82. Rc1 h4 83. Rh1 Kc3 84. Rh3 Kc4 85. Kf3 Kd4 86. Rh1 Ke5 87. Rd1) 81. Rxc4+ { [%eval #25] } 81... Kxc4 { [%eval #24] } 82. Kxf4 { [%eval #23] } 82... Kd5 { [%eval #22] } 83. Kg5 { [%eval #21] } 83... Ke4 { [%eval #18] } 84. Kxh5 { [%eval #17] } 84... Kf5 { [%eval #17] } 85. g4+ { [%eval #16] } 85... Ke4 { [%eval #14] } 86. g5 { [%eval #13] } 86... Kf5 { [%eval #13] } 87. g6 { [%eval #12] } 87... Ke6 { [%eval #12] } 88. Kh6 { [%eval #11] } 88... Kf6 { [%eval #11] } 89. g7 { [%eval #10] } 89... Kf7 { [%eval #9] } 90. Kh7 { [%eval #8] } 90... Ke6 { [%eval #8] } 91. g8=Q+ { [%eval #7] } 91... Ke5 { [%eval #7] } 92. Kg6 { [%eval #8] } 92... Ke4 { [%eval #7] } 93. Qc4+ { [%eval #6] } 93... Ke5 { [%eval #5] } 94. Kg5 { [%eval #4] } 94... Kd6 { [%eval #4] } 95. Kf6 { [%eval #3] } 95... Kd7 { [%eval #3] } 96. Qc5 { [%eval #2] } 96... Kd8 { [%eval #2] } 97. Ke6 { [%eval #1] } 97... Ke8 { [%eval #1] } 98. Qe7# { White wins by checkmate. } 1-0
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