[Event "21st Delhi International Open Grandmast"] [Date "2025.06.07"] [Round "1.9"] [White "Vairaj, Sogerwal"] [Black "Grigoryan, Karen H."] [Result "1-0"] [WhiteElo "1869"] [BlackElo "2520"] [Variant "Standard"] [Annotator "https://lichess.org/@/Octopuschess-com"] [ECO "A41"] [Opening "Queen's Pawn Game"] [StudyName "Históricos 1"] [ChapterName "Vairaj, Sogerwal - Grigoryan, Karen H."] [ChapterURL "https://lichess.org/study/aUQq0awG/iBCnvEsQ"] [Orientation "white"] 1. d4 { [%eval 0.17] [%eval 0.17] } 1... d6 { [%eval 0.48] [%eval 0.48] } 2. Nf3 { [%eval 0.48] [%eval 0.48] } 2... g6 { [%eval 0.49] [%eval 0.49] } 3. c4 { [%eval 0.37] [%eval 0.37] } 3... Bg7 { [%eval 0.45] [%eval 0.45] } 4. g3 { [%eval 0.36] [%eval 0.36] } 4... e5 { [%eval 0.6] [%eval 0.6] } 5. dxe5 { [%eval 0.63] [%eval 0.63] } 5... dxe5 { [%eval 0.63] [%eval 0.63] } 6. Qxd8+ { [%eval 0.57] [%eval 0.57] } 6... Kxd8 { [%eval 0.67] [%eval 0.67] } 7. Nc3 { [%eval 0.53] [%eval 0.53] } 7... f6 { [%eval 0.72] [%eval 0.72] } 8. Bd2?! { [%eval 0.23] } { Inaccuracy. Bg2 was best. } { [%eval 0.11] } (8. Bg2 a5 9. Nd2 c6 10. O-O Kc7 11. f4 Nd7 12. Na4 Nh6) 8... Be6 { [%eval 0.26] [%eval 0.1] } 9. O-O-O { [%eval 0.18] [%eval 0.05] } 9... Nd7 { [%eval 0.12] [%eval 0.01] } 10. b3 { [%eval 0.11] [%eval 0.1] } 10... h5 { [%eval 0.17] [%eval 0.45] } 11. Bg2 { [%eval 0.23] [%eval 0.41] } 11... Kc8 { [%eval 0.54] [%eval 0.52] } 12. h4 { [%eval 0.07] [%eval 0.03] } 12... Nh6 { [%eval 0.1] [%eval 0.03] } 13. Bxh6 { [%eval -0.39] [%eval -0.47] } 13... Bxh6+ { [%eval -0.33] [%eval -0.53] } 14. Kb2 { [%eval -0.5] [%eval -0.56] } 14... Re8 { [%eval -0.45] [%eval -0.58] } 15. e4 { [%eval -0.59] [%eval -0.64] } 15... Bg4 { [%eval -0.44] [%eval -0.44] } 16. Bh3 { [%eval -0.43] [%eval -0.42] } 16... Bxh3 { [%eval -0.33] [%eval -0.33] } 17. Rxh3 { [%eval -0.28] [%eval -0.38] } 17... c6 { [%eval -0.35] [%eval -0.36] } 18. Rhh1 { [%eval -0.45] [%eval -0.49] } 18... Nc5 { [%eval -0.32] [%eval -0.21] } 19. Rd6 { [%eval -0.48] [%eval -0.44] } 19... Ne6 { [%eval -0.53] [%eval -0.42] } 20. Rhd1 { [%eval -0.53] [%eval -0.36] } 20... Bf8 { [%eval -0.52] [%eval -0.31] } 21. Rd7 { [%eval -0.54] [%eval -0.43] } 21... Be7 { [%eval -0.52] [%eval -0.42] } 22. R7d3 { [%eval -0.6] [%eval -0.59] } 22... Bc5 { [%eval -0.45] [%eval -0.43] } 23. R3d2 { [%eval -0.33] [%eval -0.32] } 23... Rd8 { [%eval -0.45] [%eval -0.39] } 24. Rxd8+ { [%eval -0.44] [%eval -0.36] } 24... Nxd8 { [%eval -0.51] [%eval -0.31] } 25. Rd2 { [%eval -0.61] [%eval -0.74] } 25... Ne6 { [%eval -0.73] [%eval -0.62] } 26. a3 { [%eval -0.63] [%eval -0.66] } 26... Kc7 { [%eval -0.4] [%eval -0.26] } 27. b4 { [%eval -0.3] [%eval -0.24] } 27... Bf8 { [%eval -0.29] [%eval -0.27] } 28. Kb3 { [%eval -0.58] [%eval -0.49] } 28... a5 { [%eval -0.07] [%eval -0.05] } 29. Rd1?! { [%eval -0.51] } { Inaccuracy. c5 was best. } { [%eval -0.67] } (29. c5) 29... axb4 { [%eval -0.29] [%eval -0.35] } 30. axb4 { [%eval -0.36] [%eval -0.39] } 30... Bg7 { [%eval 0.03] [%eval 0.0] } 31. c5 { [%eval 0.03] [%eval 0.0] } 31... g5 { [%eval 0.22] [%eval 0.08] } 32. hxg5 { [%eval -0.14] [%eval 0.0] } 32... fxg5 { [%eval -0.16] [%eval -0.01] } 33. Rd6 { [%eval -0.07] [%eval 0.0] } 33... Re8 { [%eval -0.09] [%eval 0.0] } 34. Na4 { [%eval -0.2] [%eval -0.42] } 34... g4 { [%eval -0.22] [%eval -0.21] } 35. Nh4 { [%eval -0.22] [%eval -0.33] } 35... Bf8 { [%eval 0.05] [%eval 0.0] } 36. Rd2 { [%eval 0.0] [%eval 0.0] } 36... Nd4+ { [%eval 0.0] [%eval 0.0] } 37. Kb2 { [%eval -0.2] [%eval -0.26] } 37... Bh6 { [%eval -0.03] [%eval 0.0] } 38. Rd1 { [%eval -0.04] [%eval -0.1] } 38... Rf8 { [%eval 0.0] [%eval 0.0] } 39. Nf5 { [%eval 0.0] [%eval 0.0] } 39... Nxf5 { [%eval 0.0] [%eval 0.0] } 40. exf5 { [%eval 0.0] [%eval 0.0] } 40... Rxf5 { [%eval 0.0] [%eval 0.0] } 41. Nb6 { [%eval 0.0] [%eval 0.0] } 41... Rxf2+ { [%eval 0.0] [%eval 0.0] } 42. Kc3 { [%eval 0.0] [%eval 0.0] } 42... Rf7 { [%eval 0.0] [%eval 0.0] } 43. Na8+ { [%eval 0.0] [%eval 0.0] } 43... Kb8?! { [%eval 0.47] } { Inaccuracy. Kc8 was best. } { [%eval 1.05] } (43... Kc8 44. Nb6+ Kc7 45. Na8+ Kc8) 44. Rd8+ $18 { [%eval 0.67] [%eval 1.02] } 44... Ka7 { [%eval 1.58] [%eval 0.87] } 45. Nb6 { [%eval 1.04] [%eval 0.81] } 45... Rf8 { [%eval 1.69] [%eval 1.08] } 46. Rd1 { [%eval 1.46] [%eval 0.88] } 46... e4 { [%eval 1.16] [%eval 0.91] } 47. Kc4 { [%eval 0.78] [%eval 0.78] } 47... Bg7 { [%eval 0.9] [%eval 0.8] } 48. Rd2 { [%eval 0.69] [%eval 1.0] } 48... e3 { [%eval 0.41] [%eval 0.97] } 49. Ra2+ { [%eval 0.65] [%eval 1.1] } 49... Kb8 { [%eval 0.76] [%eval 1.16] } 50. Nd7+ { [%eval 0.5] [%eval 1.01] } 50... Kc7 { [%eval 0.33] [%eval 0.83] } 51. Nxf8 { [%eval 1.0] [%eval 1.0] } 51... Bxf8 { [%eval 0.47] [%eval 0.82] } 52. Kd3 { [%eval 0.56] [%eval 0.83] } 52... Bg7 { [%eval 0.6] [%eval 0.87] } 53. Re2 { [%eval 0.22] [%eval 0.83] } 53... Kd7 { [%eval 0.34] [%eval 0.81] } (53... Bf6 54. Rxe3 h4) 54. Rxe3 { [%eval 0.41] [%eval 0.96] } 54... Bf6 { [%eval 0.46] [%eval 0.97] } 55. Re2 { [%eval 0.55] [%eval 1.02] } 55... Bd8 { [%eval 0.35] [%eval 0.82] } (55... h4 56. gxh4 Bxh4) 56. Rh2 { [%eval 0.31] [%eval 0.81] } 56... Bc7 { [%eval 0.34] [%eval 0.87] } 57. Rxh5 { [%eval 0.42] [%eval 0.93] } 57... Bxg3 { [%eval 0.49] [%eval 0.93] } 58. Rg5 { [%eval 0.22] [%eval 0.66] } 58... Kc8 { [%eval 0.26] [%eval 0.66] } 59. Rxg4 { [%eval 0.35] [%eval 0.66] } 59... Bh2 { [%eval 0.47] [%eval 0.7] } 60. Rg8+ { [%eval 0.41] [%eval 0.72] } 60... Kc7 { [%eval 0.39] [%eval 0.77] } 61. Kc4 { [%eval 0.44] [%eval 0.77] } 61... Be5?? { [%eval 5.11] } { Blunder. Kd7 was best. } { Blunder. Kd7 was best. } { [%eval 4.7] } (61... Kd7 62. Rg7+ Kc8 63. Kd4 (63. b5 cxb5+ 64. Kxb5 Bc7 65. Rh7 Kd8 66. Rf7 Kc8 67. Rf8+) 63... Bf4 64. Rg4 Bc7 65. Rg2 Kd8 66. Ke4 Kc8 67. Rg8+) 62. b5 { [%eval 5.03] [%eval 4.77] } 62... Kd7 { [%eval 5.01] [%eval 5.04] } 63. Kb4?? { [%eval 0.4] } { Blunder. b6 was best. } { Blunder. b6 was best. } { [%eval 0.69] } (63. b6 Ke6 (63... Ke7 64. Kd3 Kf7 65. Ke4 Kxg8 66. Kxe5 Kf8 67. Kd6 Kf7 68. Kc7 Ke6) 64. Re8+ Kf6 65. Ra8 Ke7 66. Ra7 Kd7 67. Rxb7+ Kc8 68. Ra7 Kd8) 63... Bc7?? { [%eval 7.06] } { Blunder. cxb5 was best. } { Blunder. cxb5 was best. } { [%eval 5.87] } (63... cxb5 64. Kxb5 Bc7 65. Rh8 Ke7 66. Ra8 Kd7 67. Ra7 Kc8 68. c6 Kb8 69. Rxb7+) 64. Rg7+ { [%eval 6.22] [%eval 5.74] } 64... Kc8 { [%eval 5.53] [%eval 5.21] } 65. Ka4?? { [%eval 0.37] } { Blunder. b6 was best. } { Blunder. Rg8+ was best. } { [%eval 0.69] } (65. Rg8+ Kd7 66. Rg7+ Kc8 67. b6 Bf4 68. Rg8+ Kd7 69. Kc4 Be5 70. Kd3 Ke6) (65. b6 Be5 66. Rg8+ Kd7 67. Kc4 Ke7 68. Rc8 Kd7 69. Ra8 Bc7 70. bxc7 Kxc7) 65... cxb5+ { [%eval 0.27] [%eval 0.68] } 66. Kxb5 { [%eval 0.37] [%eval 0.68] } 66... Kb8?? { [%eval 6.56] } { Blunder. Kd8 was best. } { Blunder. Kd8 was best. } { [%eval 4.57] } (66... Kd8 67. Rf7 (67. Rg8+ Ke7 68. Ra8 Kd7 69. Ra7 Kc8 70. Ra2 Kd8 71. Rf2 Kd7 72. Rf7+) 67... Kc8 68. Rf8+ Kd7 69. Rg8 Ke7 70. Ra8 Kd7 71. Ra7 Kc8 72. c6) 67. Rf7?? { [%eval 0.45] } { Blunder. Rg8+ was best. } { Blunder. Rg8+ was best. } { [%eval 0.68] } (67. Rg8+ Ka7 68. Re8 Bh2 69. Re7 Kb8 70. Kb6 Kc8 71. Rg7 Bf4 72. Rxb7 Kd8) 67... Bd8?? { [%eval 4.91] } { Blunder. Kc8 was best. } { Blunder. Kc8 was best. } { [%eval 4.25] } (67... Kc8 68. Rf5 (68. Rf8+ Kd7 69. Rg8 Ke7 70. Ra8 Kd7 71. Ra7 Kc8 72. c6 Kb8 73. Rxb7+) 68... Kd8 69. Rd5+ Kc8 70. Rd4 Kb8 71. Rg4 Kc8 72. Rg8+ Kd7 73. Rf8) 68. Rd7?? { [%eval 0.52] } { Blunder. Rg7 was best. } { Blunder. Rg7 was best. } { [%eval 0.66] } (68. Rg7) 68... Bc7 { [%eval 0.44] [%eval 0.67] } 69. Rd5 { [%eval 0.63] [%eval 0.71] } 69... Ka8?? { [%eval 5.65] } { Blunder. Kc8 was best. } { Blunder. Kc8 was best. } { [%eval 4.86] } (69... Kc8 70. Rf5 Kd8 71. Rf7 Kc8 72. Rf8+ Kd7 73. Rh8 Ke7 74. Ra8 Kd7 75. Ra7) 70. Rf5 { [%eval 5.16] [%eval 4.75] } 70... Bb8?? { [%eval #24] } { Checkmate is now unavoidable. Kb8 was best. } { [%eval 4.6] } (70... Kb8 71. Rf8+ Ka7 72. Re8 Bf4 73. Re7 Kb8 74. Kb6 Kc8 75. Re8+ Kd7 76. Re4) 71. Rf7 { [%eval #23] [%eval 4.6] } 71... Ba7 { [%eval #25] [%eval 4.61] } 72. Rg7?! { [%eval 66.26] } { Lost forced checkmate sequence. Rf4 was best. } { [%eval 4.66] } (72. Rf4 Kb8 73. Ra4 Ka8 74. Ra5 Kb8 75. Ra3 Ka8 76. Kc4 Kb8 77. Kd5 Ka8) 72... Bb8 { [%eval 11.87] [%eval 4.9] } 73. Rf7 { [%eval #20] [%eval 4.42] } 73... Ba7 { [%eval #20] [%eval 4.64] } 74. Rf8+ { [%eval #26] [%eval 4.69] } 74... Bb8 { [%eval #29] [%eval 4.75] } 75. Re8 { [%eval 10.0] [%eval 4.69] } 75... Ka7 { [%eval 9.7] [%eval #33] } 76. Rf8?? { [%eval 9.42] } { Lost forced checkmate sequence. Re7 was best. } { [%eval 5.47] } (76. Re7 Ka8 77. Rh7 Ba7 78. Rh8+ Bb8 79. Rd8 Ka7 80. Rd7 Ka8 81. Re7 Ba7) 76... Ka8?? { [%eval 7.33] } { Checkmate is now unavoidable. Bc7 was best. } { [%eval #33] } (76... Bc7 77. Re8 Bg3 78. Re7 Kb8 79. Kb6 Kc8 80. Rxb7 Kd8 81. Rf7 Ke8 82. Rh7) 77. Rg8 { [%eval 7.5] [%eval 7.28] } 77... Ka7 { [%eval 6.98] [%eval 5.58] } 78. Rg5?! { [%eval 7.18] } { Inaccuracy. Rg7 was best. } { [%eval 4.29] } (78. Rg7 Ka8 79. Rd7 Ba7 80. Rd1 Kb8 81. Ra1 Ka8 82. Kc4 Kb8 83. Kd5 Ka8) 78... Ka8? { [%eval #26] } { Checkmate is now unavoidable. Bf4 was best. } { Checkmate is now unavoidable. Bc7 was best. } { [%eval #21] } (78... Bc7 79. Rg7 Kb8 80. Rg8+ Ka7 81. Rf8 Bb8 82. Rf7 Ka8 83. Rd7 Ba7 84. Rd5) (78... Bf4 79. Rg7 Kb8 80. Kb6 Kc8 81. Rxb7 Kd8 82. Rh7 Be3 83. Kc6 Ke8 84. Rg7) 79. Kb6?! { [%eval 25.8] } { Lost forced checkmate sequence. Rg8 was best. } { [%eval #36] } (79. Rg8 Ka7 80. Rg7 Ka8 81. Rh7 Ba7 82. Rh2 Kb8 83. Ra2 Ka8 84. Kc4 Kb8) 79... Ba7+ { [%eval 9.31] [%eval 8.52] } 80. Kc7 { [%eval 6.79] [%eval 6.62] } 80... Bb8+ { [%eval 8.77] [%eval 5.74] } 81. Kc8 { [%eval 7.66] [%eval 4.86] } 81... Ba7 { [%eval 8.9] [%eval 4.57] } 82. Rd5 { [%eval 4.61] [%eval 4.29] } 82... Bb8?? { [%eval #8] } { Checkmate is now unavoidable. Bb6 was best. } { Checkmate is now unavoidable. Bb6 was best. } { [%eval #8] } (82... Bb6 83. Kd7 Ba7 84. Rh5 Bb8 85. Rh8 (85. Rh4 Bg3 86. Ra4+ Kb8 87. Rb4 Ka7 88. Kc8) 85... Ka7 86. Rh3 Ka6 87. Rb3 Ba7 88. c6) 83. Rd8 { [%eval #13] [%eval #29] } 83... Ka7 { [%eval #13] [%eval 8.51] } 84. Rd7 { [%eval 25.19] [%eval 6.92] } 84... Ka8?! { [%eval #5] } { Checkmate is now unavoidable. Ka6 was best. } { Checkmate is now unavoidable. Bh2 was best. } { [%eval #5] } (84... Bh2 85. Rd2) (84... Ka6) 85. Rxb7 { [%eval #4] } { 1-0 White wins. } { [%eval #4] } 1-0