Event: K-12 International Schools Chess Open 2025 G3-G5
Site: Shanghai American School Puxi, China
White: Chau, Haoze
Black: Guo, Tailai
BlackElo: 1665
Result: 1-0
ECO: B94
Opening: Sicilian Defense: Najdorf Variation
Variant: Standard
TimeControl: 20+5

1. e4 { [%eval 0.18] [%clk 0:20:10] } 1... c5 { [%eval 0.25] [%clk 0:20:07] } 2. Nf3 { [%eval 0.2] [%clk 0:20:14] } 2... d6 { [%eval 0.22] [%clk 0:20:06] } 3. d4 { [%eval 0.22] [%clk 0:20:16] } 3... cxd4 { [%eval 0.19] [%clk 0:20:09] } 4. Nxd4 { [%eval 0.18] [%clk 0:20:20] } 4... Nf6 { [%eval 0.25] [%clk 0:20:13] } 5. Nc3 { [%eval 0.32] [%clk 0:20:24] } 5... a6 { [%eval 0.32] [%clk 0:20:17] } 6. Bg5 { [%eval 0.02] [%clk 0:20:16] } 6... Nbd7 { [%eval 0.19] [%clk 0:20:19] } 7. Bc4 { [%eval 0.19] [%clk 0:20:04] } 7... Qb6 { [%eval 0.16] [%clk 0:20:16] } 8. Rb1?! { [%eval -0.56] } { Inaccuracy. Bb3 was best. } { [%clk 0:19:26] } 8... h6 { [%eval -0.11] [%clk 0:19:49] } 9. Be3 { [%eval -0.19] [%clk 0:19:05] } 9... Qc7 { [%eval -0.06] [%clk 0:19:37] } 10. Bb3 { [%eval -0.18] [%clk 0:18:46] } 10... g6?! { [%eval 0.89] } { Inaccuracy. e6 was best. } { [%clk 0:18:40] } 11. O-O { [%eval 0.93] [%clk 0:18:26] } 11... Bg7 { [%eval 1.01] [%clk 0:18:36] } 12. h3?! { [%eval 0.37] } { Inaccuracy. f4 was best. } { [%clk 0:18:15] } 12... O-O { [%eval 0.33] [%clk 0:18:32] } 13. Kh1 { [%eval -0.16] [%clk 0:18:08] } 13... Nc5 { [%eval -0.04] [%clk 0:17:57] } 14. f3 { [%eval -0.22] [%clk 0:17:46] } 14... Rd8 { [%eval 0.06] [%clk 0:16:06] } 15. Qd2 { [%eval 0.24] [%clk 0:17:33] } 15... b5?! { [%eval 1.07] } { Inaccuracy. d5 was best. } { [%clk 0:14:59] } 16. a3?? { [%eval -0.6] } { Blunder. Bxh6 was best. } { [%clk 0:17:13] } 16... e6?? { [%eval 1.44] } { Blunder. e5 was best. } { [%clk 0:14:19] } 17. Bxh6 { [%eval 1.33] [%clk 0:16:55] } 17... Nxb3 { [%eval 1.37] [%clk 0:13:58] } 18. Nxb3 { [%eval 1.2] [%clk 0:16:47] } 18... Bb7 { [%eval 1.12] [%clk 0:13:10] } 19. Bxg7 { [%eval 1.22] [%clk 0:16:43] } 19... Kxg7 { [%eval 1.07] [%clk 0:13:13] } 20. Rfe1 { [%eval 1.07] [%clk 0:15:40] } 20... Bc6?! { [%eval 1.66] } { Inaccuracy. e5 was best. } { [%clk 0:11:29] } 21. Nd4 { [%eval 1.57] [%clk 0:15:28] } 21... Bd7 { [%eval 1.77] [%clk 0:10:28] } 22. Nde2?! { [%eval 1.18] } { Inaccuracy. Rbd1 was best. } { [%clk 0:15:12] } 22... Rac8 { [%eval 1.63] [%clk 0:09:27] } 23. Rbd1 { [%eval 1.58] [%clk 0:14:14] } 23... Bc6 { [%eval 1.7] [%clk 0:09:18] } 24. Nd4 { [%eval 1.64] [%clk 0:14:17] } 24... Bb7 { [%eval 1.53] [%clk 0:09:07] } 25. Rc1 { [%eval 1.31] [%clk 0:13:10] } 25... Nd7 { [%eval 1.41] [%clk 0:08:09] } 26. Nb3?! { [%eval 0.54] } { Inaccuracy. f4 was best. } { [%clk 0:12:52] } 26... Ne5 { [%eval 0.7] [%clk 0:07:49] } 27. Qd4 { [%eval 0.73] [%clk 0:12:33] } 27... Qc4 { [%eval 1.06] [%clk 0:06:49] } 28. Qxc4? { [%eval -0.3] } { Mistake. Qf2 was best. } { [%clk 0:12:14] } 28... Nxc4 { [%eval -0.26] [%clk 0:06:52] } 29. Rb1? { [%eval -1.64] } { Mistake. Nd1 was best. } { [%clk 0:12:06] } 29... Nxb2 { [%eval -1.17] [%clk 0:05:09] } 30. Rxb2 { [%eval -1.69] [%clk 0:12:02] } 30... Rxc3 { [%eval -1.63] [%clk 0:05:11] } 31. Rd1 { [%eval -1.99] [%clk 0:11:05] } 31... d5 { [%eval -1.96] [%clk 0:04:31] } 32. Rd3 { [%eval -1.95] [%clk 0:10:32] } 32... Rxd3?? { [%eval -0.12] } { Blunder. Rdc8 was best. } { [%clk 0:04:24] } 33. cxd3 { [%eval -0.17] [%clk 0:10:34] } 33... dxe4 { [%eval -0.06] [%clk 0:04:26] } 34. dxe4 { [%eval -0.09] [%clk 0:10:38] } 34... Rd1+ { [%eval 0.0] [%clk 0:03:51] } 35. Kh2 { [%eval 0.0] [%clk 0:10:35] } 35... Rd8 { [%eval 0.08] [%clk 0:03:41] } 36. Rd2 { [%eval 0.0] [%clk 0:10:21] } 36... Rxd2 { [%eval 0.0] [%clk 0:03:33] } 37. Nxd2 { [%eval -0.02] [%clk 0:10:25] } 37... f5 { [%eval 0.0] [%clk 0:03:34] } 38. Kg3 { [%eval 0.0] [%clk 0:10:10] } 38... Kf6 { [%eval 0.0] [%clk 0:03:17] } 39. Kf4 { [%eval -0.44] [%clk 0:09:58] } 39... e5+ { [%eval -0.7] [%clk 0:02:49] } 40. Kg3 { [%eval -0.3] [%clk 0:09:13] } 40... f4+ { [%eval -0.34] [%clk 0:02:48] } 41. Kf2 { [%eval -0.44] [%clk 0:09:03] } 41... Bc8 { [%eval -0.59] [%clk 0:02:19] } 42. Nb3?! { [%eval -1.29] } { Inaccuracy. h4 was best. } { [%clk 0:08:25] } 42... g5?! { [%eval -0.2] } { Inaccuracy. Ke7 was best. } { [%clk 0:01:31] } 43. Nc5?? { [%eval -3.42] } { Blunder. g3 was best. } { [%clk 0:08:25] } 43... Ke7 { [%eval -2.97] [%clk 0:01:24] } 44. Nd3 { [%eval -3.2] [%clk 0:08:21] } 44... Kd6 { [%eval -2.81] [%clk 0:01:13] } 45. Ke1?! { [%eval -4.22] } { Inaccuracy. g3 was best. } { [%clk 0:07:57] } 45... a5 { [%eval -4.44] [%clk 0:01:13] } 46. Kd2 { [%eval -4.16] [%clk 0:07:54] } 46... Ba6?! { [%eval -3.19] } { Inaccuracy. Be6 was best. } { [%clk 0:01:16] } 47. Kc3 { [%eval -2.62] [%clk 0:07:20] } 47... b4+ { [%eval -2.84] [%clk 0:01:11] } 48. axb4 { [%eval -2.38] [%clk 0:07:19] } 48... Bxd3?? { [%eval 0.02] } { Blunder. axb4+ was best. } { [%clk 0:01:13] } 49. Kxd3 { [%eval 0.06] [%clk 0:07:22] } 49... axb4 { [%eval 0.13] [%clk 0:01:17] } 50. Kc4 { [%eval 0.0] [%clk 0:07:13] } 50... b3 { [%eval 0.0] [%clk 0:01:05] } 51. Kxb3 { [%eval 0.02] [%clk 0:07:17] } 51... Kc5 { [%eval 0.07] [%clk 0:01:06] } 52. Kc3 { [%eval 0.12] [%clk 0:07:20] } 52... Kb5 { [%eval 0.0] [%clk 0:01:10] } 53. Kd3 { [%eval 0.0] [%clk 0:07:17] } 53... Kb4 { [%eval 0.1] [%clk 0:01:12] } 54. Ke2 { [%eval 0.14] [%clk 0:07:21] } 54... Kc3?? { [%eval 7.64] } { Blunder. Kc5 was best. } { [%clk 0:01:15] } 55. Kf2 { [%eval 10.19] [%clk 0:07:25] } 55... Kd3 { [%eval 8.96] [%clk 0:01:15] } 56. g3 { [%eval 8.67] [%clk 0:07:27] } 56... Kd4 { [%eval 11.5] [%clk 0:01:14] } 57. g4 { [%eval 10.44] [%clk 0:07:03] } 57... Kc5?! { [%eval #21] } { Checkmate is now unavoidable. Kc4 was best. } { [%clk 0:01:05] } 58. h4 { [%eval #21] [%clk 0:07:04] } 58... gxh4 { [%eval #21] [%clk 0:01:04] } 59. Kg2 { [%eval #21] [%clk 0:07:05] } 59... Kd4 { [%eval #26] [%clk 0:00:56] } 60. g5 { [%eval #16] [%clk 0:07:05] } 60... Ke3 { [%eval #16] [%clk 0:01:00] } 61. g6 { [%eval #16] [%clk 0:07:07] } 61... h3+ { [%eval #15] [%clk 0:01:03] } 62. Kxh3 { [%eval #15] [%clk 0:07:10] } 62... Kxf3 { [%eval #14] [%clk 0:01:07] } 63. g7 { [%eval #14] [%clk 0:07:13] } 63... Kxe4 { [%eval #13] [%clk 0:01:09] } 64. g8=Q { [%eval #12] [%clk 0:07:15] } 64... f3 { [%eval #12] [%clk 0:01:11] } 65. Qg4+ { [%eval #12] [%clk 0:07:15] } 65... Ke3 { [%eval #12] [%clk 0:01:15] } 66. Kg3 { [%eval #11] [%clk 0:07:08] } 66... e4 { [%eval #11] [%clk 0:01:16] } 67. Qf4+ { [%eval #11] [%clk 0:07:07] } 67... Kd3 { [%eval #10] [%clk 0:01:19] } 68. Kf2 { [%eval #10] [%clk 0:07:06] } 68... Kd4 { [%eval #10] [%clk 0:01:21] } 69. Qe3+ { [%eval #11] [%clk 0:07:10] } 69... Ke5 { [%eval #11] [%clk 0:01:25] } 70. Kg3 { [%eval #10] [%clk 0:07:01] } 70... Kf5 { [%eval #10] [%clk 0:01:18] } 71. Qf4+ { [%eval #9] [%clk 0:07:01] } 71... Ke6 { [%eval #9] [%clk 0:01:22] } 72. Qxe4+ { [%eval #9] [%clk 0:07:04] } 1-0