Event: K-12 International Schools Chess Open 2025 G3-G5
Site: Shanghai American School Puxi, China
White: Zhang, Brandon
Black: Zhu, Alan
Result: 0-1
ECO: D02
Opening: Queen's Pawn Game: London System
Variant: Standard
TimeControl: 20+5

1. d4 { [%eval 0.17] [%clk 0:20:10] } 1... d5 { [%eval 0.24] [%clk 0:20:09] } 2. Bf4 { [%eval 0.0] [%clk 0:20:14] } 2... Nf6 { [%eval 0.12] [%clk 0:20:01] } 3. Nf3 { [%eval 0.04] [%clk 0:20:17] } 3... Bf5 { [%eval 0.12] [%clk 0:19:51] } 4. e3 { [%eval 0.12] [%clk 0:20:21] } 4... c5?! { [%eval 0.85] } { Inaccuracy. e6 was best. } { [%clk 0:19:48] } 5. c3?! { [%eval 0.0] } { Inaccuracy. dxc5 was best. } { [%clk 0:20:20] } 5... Nc6?! { [%eval 0.75] } { Inaccuracy. Qb6 was best. } { [%clk 0:19:46] } 6. Bd3?! { [%eval -0.09] } { Inaccuracy. dxc5 was best. } { [%clk 0:20:23] } 6... Bg6?! { [%eval 0.59] } { Inaccuracy. Bxd3 was best. } { [%clk 0:19:38] } 7. Bxg6?! { [%eval 0.0] } { Inaccuracy. dxc5 was best. } { [%clk 0:19:54] } 7... hxg6 { [%eval 0.02] [%clk 0:19:41] } 8. Nbd2 { [%eval 0.07] [%clk 0:19:57] } 8... e6 { [%eval 0.15] [%clk 0:19:15] } 9. Bg5 { [%eval -0.12] [%clk 0:19:53] } 9... cxd4 { [%eval -0.13] [%clk 0:18:36] } 10. cxd4 { [%eval -0.57] [%clk 0:19:56] } 10... Be7 { [%eval -0.05] [%clk 0:18:39] } 11. Rc1 { [%eval -0.37] [%clk 0:19:56] } 11... Nd7 { [%eval 0.14] [%clk 0:18:27] } 12. Bxe7 { [%eval 0.15] [%clk 0:19:47] } 12... Qxe7 { [%eval 0.14] [%clk 0:18:23] } 13. Qb3 { [%eval 0.13] [%clk 0:19:47] } 13... Nb6 { [%eval 0.24] [%clk 0:18:04] } 14. a4 { [%eval 0.0] [%clk 0:19:46] } 14... Nc8 { [%eval 0.21] [%clk 0:17:19] } 15. Qc3 { [%eval -0.06] [%clk 0:19:02] } 15... Nd6 { [%eval 0.05] [%clk 0:16:22] } 16. O-O { [%eval 0.0] [%clk 0:18:53] } 16... Rc8 { [%eval 0.0] [%clk 0:16:02] } 17. b4 { [%eval -0.06] [%clk 0:16:59] } 17... a6 { [%eval 0.0] [%clk 0:15:50] } 18. Nb3 { [%eval -0.19] [%clk 0:16:33] } 18... b6?! { [%eval 0.54] } { Inaccuracy. g5 was best. } { [%clk 0:15:10] } 19. h3?! { [%eval -0.17] } { Inaccuracy. a5 was best. } { [%clk 0:15:24] } 19... O-O { [%eval -0.19] [%clk 0:14:39] } 20. Qd2? { [%eval -1.74] } { Mistake. Nbd2 was best. } { [%clk 0:13:44] } 20... Ne4 { [%eval -1.54] [%clk 0:14:34] } 21. Qe1?! { [%eval -2.31] } { Inaccuracy. Qe2 was best. } { [%clk 0:13:43] } 21... Qxb4 { [%eval -2.16] [%clk 0:13:41] } 22. Qxb4 { [%eval -2.16] [%clk 0:13:46] } 22... Nxb4 { [%eval -2.09] [%clk 0:13:38] } 23. a5 { [%eval -2.15] [%clk 0:13:35] } 23... b5 { [%eval -1.59] [%clk 0:13:16] } 24. Ne5 { [%eval -1.76] [%clk 0:13:35] } 24... Nc3 { [%eval -1.5] [%clk 0:12:00] } 25. Rfe1 { [%eval -1.57] [%clk 0:12:51] } 25... Ne4?! { [%eval -0.89] } { Inaccuracy. g5 was best. } { [%clk 0:08:19] } 26. f3?! { [%eval -1.57] } { Inaccuracy. Nd7 was best. } { [%clk 0:12:54] } 26... Nd6 { [%eval -1.62] [%clk 0:07:58] } 27. Nd7 { [%eval -1.85] [%clk 0:12:11] } 27... Nd3 { [%eval -2.08] [%clk 0:07:07] } 28. Nxf8 { [%eval -2.24] [%clk 0:12:14] } 28... Nxc1 { [%eval -2.07] [%clk 0:07:04] } 29. Nd7?? { [%eval -6.28] } { Blunder. Nc5 was best. } { [%clk 0:12:11] } 29... Nxb3 { [%eval -6.11] [%clk 0:06:56] } 30. Nb6 { [%eval -7.08] [%clk 0:12:01] } 30... Rc1 { [%eval -6.85] [%clk 0:06:47] } 31. Rxc1 { [%eval -6.55] [%clk 0:12:07] } 31... Nxc1 { [%eval -6.81] [%clk 0:06:49] } 32. Kf2 { [%eval -6.57] [%clk 0:12:11] } 32... Nc4 { [%eval -6.47] [%clk 0:06:44] } 33. Ke1 { [%eval -6.63] [%clk 0:12:14] } 33... Nxa5 { [%eval -6.25] [%clk 0:06:26] } 34. Kd2 { [%eval -6.28] [%clk 0:12:18] } 34... Na2 { [%eval -6.21] [%clk 0:06:21] } 35. Nd7 { [%eval -6.92] [%clk 0:12:20] } 35... Nc4+ { [%eval -6.92] [%clk 0:06:20] } 36. Kc2 { [%eval -6.92] [%clk 0:12:23] } 36... Nb4+ { [%eval -7.13] [%clk 0:06:23] } 37. Kb3 { [%eval -7.37] [%clk 0:12:27] } 37... a5 { [%eval -7.16] [%clk 0:06:25] } 38. Nc5 { [%eval -7.42] [%clk 0:12:29] } 38... Nc6 { [%eval -7.39] [%clk 0:06:19] } 39. Nd7 { [%eval -8.33] [%clk 0:12:25] } 39... a4+ { [%eval -8.2] [%clk 0:06:22] } 40. Ka2 { [%eval -8.67] [%clk 0:12:29] } 40... Nb4+ { [%eval -8.55] [%clk 0:06:17] } 41. Kb1 { [%eval -8.53] [%clk 0:12:32] } 41... a3 { [%eval -8.72] [%clk 0:06:18] } 42. Nc5 { [%eval -8.69] [%clk 0:12:32] } 42... a2+ { [%eval -8.49] [%clk 0:06:20] } 43. Ka1 { [%eval -8.36] [%clk 0:12:36] } 43... Nxe3 { [%eval -8.1] [%clk 0:06:19] } 44. f4? { [%eval #-3] } { Checkmate is now unavoidable. Kb2 was best. } { [%clk 0:12:39] } 44... Nec2+ { [%eval #-2] [%clk 0:06:22] } 45. Kb2 { [%eval #-2] [%clk 0:12:38] } 45... a1=Q+ { [%eval #-1] [%clk 0:06:22] } 46. Kb3 { [%eval #-1] [%clk 0:12:42] } 46... Qa3# { [%clk 0:06:12] } 0-1