Event: 2025 O2C Doeberl Cup Premier
Site: Canberra, Australia
Date: 2025-04-21
White: Das, Sayantan
WhiteTitle: GM
WhiteElo: 2416
Black: Zhu, Harvey
BlackElo: 2137
Result: 1-0
ECO: B08
Opening: Pirc Defense: Classical Variation, Quiet System
Variant: Standard
TimeControl: 90 minutes + 30 seconds per move from move 1

1. e4 { [%eval 0.18] [%clk 1:30:44] } 1... g6 { [%eval 0.48] [%clk 1:30:27] } 2. d4 { [%eval 0.48] [%clk 1:30:55] } 2... Bg7 { [%eval 0.48] [%clk 1:30:39] } 3. Nf3 { [%eval 0.5] [%clk 1:28:07] } 3... d6 { [%eval 0.43] [%clk 1:30:10] } 4. Be2 { [%eval 0.35] [%clk 1:28:14] } 4... Nf6 { [%eval 0.37] [%clk 1:29:03] } 5. Nc3 { [%eval 0.33] [%clk 1:28:16] } 5... O-O { [%eval 0.36] [%clk 1:27:35] } 6. O-O { [%eval 0.27] [%clk 1:27:45] } 6... Nbd7 { [%eval 0.57] [%clk 1:18:15] } 7. Bg5 { [%eval 0.22] [%clk 1:24:57] } 7... h6 { [%eval 0.23] [%clk 1:15:31] } 8. Bh4 { [%eval 0.15] [%clk 1:24:28] } 8... g5 { [%eval 0.18] [%clk 1:10:33] } 9. Bg3 { [%eval -0.05] [%clk 1:24:49] } 9... Nh5 { [%eval 0.01] [%clk 1:10:37] } 10. a4 { [%eval 0.02] [%clk 1:21:03] } 10... e6 { [%eval -0.03] [%clk 1:05:01] } 11. a5 { [%eval -0.11] [%clk 1:17:34] } 11... f5?! { [%eval 0.97] } { Inaccuracy. a6 was best. } { [%clk 0:58:52] } 12. exf5 { [%eval 0.98] [%clk 1:10:27] } 12... Nxg3 { [%eval 0.94] [%clk 0:58:17] } 13. hxg3 { [%eval 0.91] [%clk 1:09:03] } 13... exf5 { [%eval 0.99] [%clk 0:56:34] } 14. a6 { [%eval 0.52] [%clk 1:08:38] } 14... Nf6 { [%eval 0.89] [%clk 0:52:34] } 15. d5 { [%eval 0.45] [%clk 1:04:07] } 15... c5 { [%eval 0.57] [%clk 0:41:43] } 16. dxc6 { [%eval 0.19] [%clk 0:57:20] } 16... bxc6 { [%eval 0.29] [%clk 0:41:21] } 17. Nd4 { [%eval 0.2] [%clk 0:57:42] } 17... Bd7 { [%eval 0.32] [%clk 0:38:03] } 18. Qd3 { [%eval 0.34] [%clk 0:54:05] } 18... Qc8 { [%eval 0.34] [%clk 0:25:52] } 19. Na4? { [%eval -0.76] } { Mistake. b4 was best. } { [%clk 0:36:43] } 19... Ne4?! { [%eval -0.17] } { Inaccuracy. Rb8 was best. } { [%clk 0:20:33] } 20. c4 { [%eval -0.69] [%clk 0:32:43] } 20... Qxa6?! { [%eval -0.12] } { Inaccuracy. Qe8 was best. } { [%clk 0:17:45] } 21. g4 { [%eval -0.16] [%clk 0:30:10] } 21... Qc8 { [%eval 0.03] [%clk 0:16:01] } 22. Nb3? { [%eval -1.47] } { Mistake. Bf3 was best. } { [%clk 0:16:23] } 22... Be5 { [%eval -1.21] [%clk 0:15:11] } 23. Bd1?! { [%eval -1.88] } { Inaccuracy. Nd4 was best. } { [%clk 0:13:52] } 23... Nf6?! { [%eval -1.15] } { Inaccuracy. Qe8 was best. } { [%clk 0:14:39] } 24. Re1 { [%eval -0.86] [%clk 0:12:23] } 24... c5? { [%eval 0.65] } { Mistake. Re8 was best. } { [%clk 0:08:55] } 25. Naxc5 { [%eval 0.68] [%clk 0:10:35] } 25... Re8 { [%eval 0.74] [%clk 0:04:23] } 26. Nxd7 { [%eval 0.67] [%clk 0:09:23] } 26... Qxd7 { [%eval 0.77] [%clk 0:04:40] } 27. Bf3 { [%eval 0.4] [%clk 0:08:50] } 27... Rab8 { [%eval 0.67] [%clk 0:04:43] } 28. gxf5 { [%eval 0.6] [%clk 0:07:40] } 28... Bxb2 { [%eval 0.65] [%clk 0:03:33] } 29. Rxe8+ { [%eval 0.41] [%clk 0:06:10] } 29... Rxe8 { [%eval 0.65] [%clk 0:03:39] } 30. Rb1 { [%eval 0.76] [%clk 0:06:32] } 30... Be5 { [%eval 0.82] [%clk 0:03:23] } 31. Na5 { [%eval 0.78] [%clk 0:06:51] } 31... Qa4?? { [%eval 3.04] } { Blunder. Rc8 was best. } { [%clk 0:03:12] } 32. Nc6 { [%eval 2.92] [%clk 0:06:27] } 32... Qa6 { [%eval 2.77] [%clk 0:01:10] } 33. g3 { [%eval 2.97] [%clk 0:05:55] } 33... g4? { [%eval 5.02] } { Mistake. Kh7 was best. } { [%clk 0:01:01] } 34. Bd5+ { [%eval 5.05] [%clk 0:05:41] } 34... Kg7 { [%eval 5.49] [%clk 0:01:05] } 35. Nxe5 { [%eval 5.39] [%clk 0:03:46] } 35... dxe5 { [%eval 5.04] [%clk 0:01:28] } 36. Rb7+ { [%eval 5.16] [%clk 0:02:30] } 36... Kh8 { [%eval 4.99] [%clk 0:01:49] } 37. Qd2 { [%eval 4.99] [%clk 0:02:46] } 37... Nxd5? { [%eval 9.19] } { Mistake. Ng8 was best. } { [%clk 0:01:47] } 38. Qxd5 { [%eval 8.09] [%clk 0:03:11] } 38... Qa1+ { [%eval 10.15] [%clk 0:01:27] } 39. Kg2 { [%eval #16] [%clk 0:03:18] } 39... Qa3 { [%eval #19] [%clk 0:00:44] } 40. Qd7 { [%eval 8.14] [%clk 0:03:05] } 40... Re7? { [%eval #5] } { Checkmate is now unavoidable. Qf3+ was best. } { [%clk 0:00:36] } 41. Qd8+ { [%eval #4] [%clk 0:03:10] } 1-0