Event: K-12 International Schools Chess Open 2025 G3-G5
Site: Shanghai American School Puxi, China
White: Zhu, Alan
Black: Du, Jonathan
Result: 0-1
ECO: B40
Opening: Sicilian Defense: Four Knights Variation
Variant: Standard
TimeControl: 20+5

1. e4 { [%eval 0.18] [%clk 0:20:09] } 1... c5 { [%eval 0.25] [%clk 0:20:07] } 2. Nf3 { [%eval 0.2] [%clk 0:20:12] } 2... e6 { [%eval 0.28] [%clk 0:20:07] } 3. Nc3 { [%eval 0.26] [%clk 0:20:15] } 3... Nc6 { [%eval 0.31] [%clk 0:19:50] } 4. d4 { [%eval 0.36] [%clk 0:20:18] } 4... cxd4 { [%eval 0.41] [%clk 0:19:45] } 5. Nxd4 { [%eval 0.24] [%clk 0:20:20] } 5... Nf6 { [%eval 0.35] [%clk 0:19:45] } 6. Be3 { [%eval 0.0] [%clk 0:20:07] } 6... Bb4 { [%eval 0.0] [%clk 0:19:43] } 7. a3 { [%eval -0.32] [%clk 0:19:22] } 7... Bxc3+ { [%eval -0.32] [%clk 0:19:24] } 8. bxc3 { [%eval -0.18] [%clk 0:19:24] } 8... Nxe4 { [%eval 0.0] [%clk 0:19:22] } 9. c4?? { [%eval -3.94] } { Blunder. Qg4 was best. } { [%clk 0:18:32] } 9... Qa5+ { [%eval -3.93] [%clk 0:18:34] } 10. Bd2?! { [%eval -5.37] } { Inaccuracy. c3 was best. } { [%clk 0:17:13] } 10... Nxd2 { [%eval -5.37] [%clk 0:18:31] } 11. Nxc6 { [%eval -6.43] [%clk 0:17:16] } 11... Nf3+?! { [%eval -4.09] } { Inaccuracy. dxc6 was best. } { [%clk 0:17:48] } 12. Ke2 { [%eval -4.03] [%clk 0:17:06] } 12... bxc6?! { [%eval -2.56] } { Inaccuracy. Qc3 was best. } { [%clk 0:17:44] } 13. gxf3? { [%eval -4.16] } { Mistake. Kxf3 was best. } { [%clk 0:17:00] } 13... Ba6 { [%eval -3.86] [%clk 0:17:42] } 14. Ke3?! { [%eval -4.93] } { Inaccuracy. Qd4 was best. } { [%clk 0:15:40] } 14... Qe5+ { [%eval -4.9] [%clk 0:17:27] } 15. Kd2 { [%eval -4.32] [%clk 0:15:31] } 15... Qd4+ { [%eval -4.42] [%clk 0:17:14] } 16. Bd3 { [%eval -4.41] [%clk 0:15:34] } 16... Qxf2+ { [%eval -3.76] [%clk 0:16:43] } 17. Qe2 { [%eval -3.71] [%clk 0:15:37] } 17... Qxe2+ { [%eval -3.7] [%clk 0:16:39] } 18. Kxe2 { [%eval -3.77] [%clk 0:15:39] } 18... Rb8 { [%eval -3.68] [%clk 0:16:36] } 19. Rab1 { [%eval -3.58] [%clk 0:15:42] } 19... O-O?! { [%eval -2.72] } { Inaccuracy. Ke7 was best. } { [%clk 0:16:19] } 20. Rb3 { [%eval -3.43] [%clk 0:15:32] } 20... Rxb3 { [%eval -2.81] [%clk 0:16:08] } 21. cxb3 { [%eval -2.7] [%clk 0:15:35] } 21... Re8 { [%eval -2.49] [%clk 0:15:26] } 22. Kf2 { [%eval -2.91] [%clk 0:15:29] } 22... d5 { [%eval -3.01] [%clk 0:15:21] } 23. Rc1 { [%eval -2.94] [%clk 0:15:27] } 23... Rc8 { [%eval -2.86] [%clk 0:14:17] } 24. Bf1 { [%eval -2.81] [%clk 0:15:14] } 24... Rb8 { [%eval -2.67] [%clk 0:13:59] } 25. b4 { [%eval -2.72] [%clk 0:13:51] } 25... Kf8 { [%eval -2.66] [%clk 0:13:10] } 26. c5? { [%eval -4.26] } { Mistake. h4 was best. } { [%clk 0:12:22] } 26... Bxf1 { [%eval -4.12] [%clk 0:12:55] } 27. Kxf1 { [%eval -3.95] [%clk 0:12:24] } 27... Rb5 { [%eval -3.82] [%clk 0:12:22] } 28. Rb1 { [%eval -3.81] [%clk 0:11:16] } 28... a5 { [%eval -3.71] [%clk 0:11:10] } 29. a4?! { [%eval -5.39] } { Inaccuracy. Ke2 was best. } { [%clk 0:10:58] } 29... Rb8?! { [%eval -4.0] } { Inaccuracy. Rxb4 was best. } { [%clk 0:11:07] } 30. b5 { [%eval -4.22] [%clk 0:10:57] } 30... cxb5 { [%eval -3.95] [%clk 0:11:05] } 31. axb5 { [%eval -3.84] [%clk 0:11:01] } 31... Ke8 { [%eval -3.69] [%clk 0:10:35] } 32. b6 { [%eval -4.61] [%clk 0:10:55] } 32... Kd7 { [%eval -4.61] [%clk 0:10:28] } 33. Ra1 { [%eval -4.63] [%clk 0:10:51] } 33... Ra8 { [%eval -4.59] [%clk 0:09:50] } 34. Ke2 { [%eval -4.81] [%clk 0:10:52] } 34... Kc6 { [%eval -4.75] [%clk 0:09:32] } 35. Rc1 { [%eval -5.15] [%clk 0:10:55] } 35... a4 { [%eval -5.13] [%clk 0:08:51] } 36. Kd3 { [%eval -5.05] [%clk 0:10:44] } 36... a3 { [%eval -4.9] [%clk 0:07:58] } 37. Kc2 { [%eval -5.55] [%clk 0:10:02] } 37... Kxc5 { [%eval -5.71] [%clk 0:07:52] } 38. b7 { [%eval -5.73] [%clk 0:10:02] } 38... Rb8 { [%eval -5.74] [%clk 0:07:35] } 39. Kd3+ { [%eval -5.74] [%clk 0:09:34] } 39... Kd6 { [%eval -5.69] [%clk 0:07:27] } 40. Rb1 { [%eval -5.72] [%clk 0:09:18] } 40... a2 { [%eval -5.6] [%clk 0:07:24] } 41. Rb6+ { [%eval -5.81] [%clk 0:09:19] } 41... Kd7 { [%eval -5.66] [%clk 0:07:07] } 42. Ra6 { [%eval -5.66] [%clk 0:09:07] } 42... Rxb7 { [%eval -5.54] [%clk 0:07:00] } 43. Rxa2 { [%eval -5.68] [%clk 0:09:07] } 43... Ke7 { [%eval -5.6] [%clk 0:06:50] } 44. f4 { [%eval -5.88] [%clk 0:08:46] } 44... Kf6 { [%eval -5.92] [%clk 0:06:53] } 45. Kc3 { [%eval -6.45] [%clk 0:08:20] } 45... Kf5 { [%eval -6.36] [%clk 0:06:49] } 46. Ra4 { [%eval -6.46] [%clk 0:08:13] } 46... Rc7+ { [%eval -6.41] [%clk 0:06:53] } 47. Kd2 { [%eval -6.27] [%clk 0:07:46] } 47... f6 { [%eval -6.43] [%clk 0:06:23] } 48. h4 { [%eval -6.45] [%clk 0:07:04] } 48... Rc4 { [%eval -6.33] [%clk 0:06:02] } 49. Ra7 { [%eval -6.18] [%clk 0:07:05] } 49... Kg6 { [%eval -5.78] [%clk 0:06:05] } 50. Ke3 { [%eval -5.89] [%clk 0:07:04] } 50... Re4+ { [%eval -5.87] [%clk 0:06:01] } 51. Kf3 { [%eval -5.32] [%clk 0:07:05] } 51... f5 { [%eval -5.28] [%clk 0:05:58] } 52. Rd7 { [%eval -5.18] [%clk 0:07:01] } 52... Kf6 { [%eval -5.32] [%clk 0:05:40] } 53. Rd8 { [%eval -5.34] [%clk 0:06:16] } 53... Rc4 { [%eval -5.28] [%clk 0:05:41] } 54. Rf8+ { [%eval -5.29] [%clk 0:05:44] } 54... Ke7 { [%eval -5.09] [%clk 0:05:44] } 55. Rh8 { [%eval -5.26] [%clk 0:05:39] } 55... h6 { [%eval -5.16] [%clk 0:05:47] } 56. Rg8 { [%eval -5.57] [%clk 0:05:42] } 56... Kf7 { [%eval -5.57] [%clk 0:05:50] } 57. Ra8 { [%eval -5.44] [%clk 0:05:24] } 57... Re4 { [%eval -5.22] [%clk 0:05:32] } 58. Ra7+ { [%eval -5.43] [%clk 0:05:22] } 58... Kf6 { [%eval -5.26] [%clk 0:05:35] } 59. Ra1 { [%eval -5.33] [%clk 0:05:18] } 59... e5 { [%eval -5.15] [%clk 0:05:23] } 60. fxe5+ { [%eval -5.37] [%clk 0:05:07] } 60... Rxe5 { [%eval -5.18] [%clk 0:05:27] } 61. Rd1 { [%eval -6.39] [%clk 0:04:58] } 61... g5 { [%eval -6.3] [%clk 0:05:14] } 62. hxg5+ { [%eval -6.33] [%clk 0:04:56] } 62... hxg5 { [%eval -7.9] [%clk 0:05:16] } 63. Rh1 { [%eval -12.16] [%clk 0:04:27] } 63... g4+ { [%eval -9.33] [%clk 0:05:19] } 64. Kf4 { [%eval -12.63] [%clk 0:04:28] } 64... Re4+ { [%eval -9.76] [%clk 0:05:23] } 65. Kg3 { [%eval -10.74] [%clk 0:04:30] } 65... Kg5 { [%eval -9.5] [%clk 0:05:26] } 66. Rd1? { [%eval #-17] } { Checkmate is now unavoidable. Rh7 was best. } { [%clk 0:04:25] } 66... d4 { [%eval #-16] [%clk 0:05:28] } 67. Ra1 { [%eval #-9] [%clk 0:04:21] } 67... f4+ { [%eval #-20] [%clk 0:05:27] } 68. Kg2 { [%eval #-11] [%clk 0:03:59] } 68... Re2+ { [%eval #-10] [%clk 0:05:19] } 69. Kf1 { [%eval #-10] [%clk 0:03:59] } 69... d3 { [%eval #-17] [%clk 0:05:22] } 70. Ra4 { [%eval #-8] [%clk 0:03:58] } 70... f3 { [%eval #-7] [%clk 0:05:15] } 71. Ra5+ { [%eval #-7] [%clk 0:03:48] } 71... Kf4 { [%eval #-6] [%clk 0:05:17] } 72. Ra4+ { [%eval #-5] [%clk 0:03:47] } 72... Kg3 { [%eval #-4] [%clk 0:05:20] } 73. Ra1 { [%eval #-4] [%clk 0:02:38] } 73... d2 { [%eval #-4] [%clk 0:05:22] } 74. Rd1 { [%eval #-4] [%clk 0:02:30] } 74... Re1+ { [%eval #-10] [%clk 0:05:24] } 75. Rxe1 { [%eval #-10] [%clk 0:02:30] } 75... dxe1=Q+ { [%eval #-9] [%clk 0:05:25] } 76. Kxe1 { [%eval #-9] [%clk 0:02:30] } 76... Kg2 { [%eval #-9] [%clk 0:05:25] } 77. Kd2 { [%eval #-9] [%clk 0:02:20] } 77... f2 { [%eval #-8] [%clk 0:05:28] } 78. Ke2 { [%eval #-6] [%clk 0:02:20] } 78... f1=Q+ { [%eval #-5] [%clk 0:05:27] } 79. Ke3 { [%eval #-4] [%clk 0:02:13] } 79... Kh3 { [%eval #-6] [%clk 0:05:29] } 80. Kd2 { [%eval #-5] [%clk 0:02:04] } 80... g3 { [%eval #-5] [%clk 0:05:32] } 81. Ke3 { [%eval #-4] [%clk 0:02:08] } 81... g2 { [%eval #-4] [%clk 0:05:34] } 82. Kd2 { [%eval #-3] [%clk 0:02:11] } 82... Qf3 { [%eval #-3] [%clk 0:05:33] } 83. Kc2 { [%eval #-3] [%clk 0:02:11] } 83... g1=R { [%eval #-2] [%clk 0:04:37] } 84. Kb2 { [%eval #-2] [%clk 0:02:11] } 84... Rg2+ { [%eval #-1] [%clk 0:04:38] } 85. Kc1 { [%clk 0:01:50] } 85... Qf1# { [%clk 0:04:37] } 0-1