Event: Asian Amateur Chess Championship - Open
Site: Oman
Date: 2021-11-16
White: Usukhbayar, Altan-Erdene
Black: Haj Kasem, Kasem.
Result: 1-0
ECO: A48
Opening: London System
Variant: Standard

1. d4 { [%eval 0.0] [%clk 0:15:05] } 1... Nf6 { [%eval 0.24] [%clk 0:14:56] } 2. Nf3 { [%eval 0.12] [%clk 0:15:08] } 2... g6 { [%eval 0.21] [%clk 0:14:57] } 3. Bf4 { [%eval 0.0] [%clk 0:15:10] } 3... Bg7 { [%eval 0.19] [%clk 0:14:58] } 4. e3 { [%eval 0.13] [%clk 0:15:09] } 4... d6 { [%eval 0.21] [%clk 0:15:00] } 5. c4?! { [%eval -0.37] } { Inaccuracy. h3 was best. } { [%clk 0:15:11] } 5... O-O?! { [%eval 0.2] } { Inaccuracy. Nh5 was best. } { [%clk 0:14:56] } 6. Be2 { [%eval -0.13] [%clk 0:15:10] } 6... Bf5 { [%eval 0.06] [%clk 0:14:50] } 7. Qb3 { [%eval -0.27] [%clk 0:15:09] } 7... Nbd7 { [%eval -0.12] [%clk 0:14:31] } 8. O-O { [%eval -0.27] [%clk 0:14:17] } 8... c6?! { [%eval 0.31] } { Inaccuracy. Nh5 was best. } { [%clk 0:14:19] } 9. Qxb7?! { [%eval -0.51] } { Inaccuracy. h3 was best. } { [%clk 0:14:03] } 9... Qb8? { [%eval 0.7] } { Mistake. Rb8 was best. } { [%clk 0:13:56] } 10. Qxb8 { [%eval 0.4] [%clk 0:13:48] } 10... Raxb8 { [%eval 0.82] [%clk 0:13:58] } 11. b3 { [%eval 0.61] [%clk 0:13:51] } 11... Bxb1? { [%eval 1.99] } { Mistake. e5 was best. } { [%clk 0:13:44] } 12. Raxb1 { [%eval 2.47] [%clk 0:13:54] } 12... Ne4 { [%eval 2.14] [%clk 0:13:47] } 13. Bd3 { [%eval 2.5] [%clk 0:13:42] } 13... d5?? { [%eval 7.18] } { Blunder. Nc3 was best. } { [%clk 0:13:30] } 14. Bxe4 { [%eval 6.76] [%clk 0:13:41] } 14... dxe4 { [%eval 6.76] [%clk 0:13:31] } 15. Bxb8 { [%eval 6.66] [%clk 0:13:44] } 15... exf3 { [%eval 6.68] [%clk 0:13:32] } 16. Bg3 { [%eval 6.93] [%clk 0:13:06] } 16... fxg2 { [%eval 6.68] [%clk 0:13:23] } 17. Kxg2 { [%eval 6.85] [%clk 0:13:09] } 17... Rb8 { [%eval 9.08] [%clk 0:13:10] } 18. b4 { [%eval 7.65] [%clk 0:13:08] } 18... Rc8 { [%eval 7.37] [%clk 0:12:58] } 19. a4 { [%eval 7.43] [%clk 0:13:05] } 19... a6 { [%eval 8.29] [%clk 0:12:58] } 20. c5 { [%eval 7.36] [%clk 0:13:03] } 20... Nf6 { [%eval 7.85] [%clk 0:12:31] } 21. b5 { [%eval 8.13] [%clk 0:13:00] } 21... cxb5 { [%eval 7.98] [%clk 0:12:31] } 22. axb5 { [%eval 8.08] [%clk 0:13:03] } 22... axb5 { [%eval 8.06] [%clk 0:12:32] } 23. Rxb5 { [%eval 8.31] [%clk 0:13:07] } 23... Ne4 { [%eval 8.49] [%clk 0:12:35] } 24. Rb8 { [%eval 8.96] [%clk 0:12:44] } 24... Rxb8 { [%eval 8.86] [%clk 0:12:32] } 25. Bxb8 { [%eval 8.81] [%clk 0:12:47] } 25... Nd2 { [%eval 9.57] [%clk 0:12:35] } 26. Ra1 { [%eval 9.58] [%clk 0:12:48] } 26... Nb3 { [%eval 11.92] [%clk 0:12:35] } 27. Ra8 { [%eval 12.3] [%clk 0:12:43] } 27... f6 { [%eval 13.59] [%clk 0:12:27] } 28. Bd6+ { [%eval 11.3] [%clk 0:12:34] } 28... Kf7 { [%eval 11.65] [%clk 0:12:27] } 29. Ra7 { [%eval 9.87] [%clk 0:12:29] } 29... Bf8 { [%eval 12.42] [%clk 0:12:27] } 30. Bg3 { [%eval 10.7] [%clk 0:12:23] } 30... Nd2 { [%eval 11.53] [%clk 0:12:25] } 31. c6 { [%eval 11.9] [%clk 0:12:19] } 31... Ke8?! { [%eval #17] } { Checkmate is now unavoidable. Nc4 was best. } { [%clk 0:12:18] } 32. Ra8+ { [%eval #9] [%clk 0:12:16] } 32... Kf7 { [%eval 16.28] [%clk 0:12:08] } 33. c7 { [%eval #12] [%clk 0:12:19] } 33... Nc4 { [%eval #7] [%clk 0:12:06] } 34. c8=Q { [%eval #6] [%clk 0:12:19] } 34... Nb6 { [%eval #6] [%clk 0:12:00] } 35. Qxf8+ { [%eval #5] [%clk 0:12:21] } 35... Ke6 { [%eval #5] [%clk 0:12:01] } 36. Ra6 { [%eval #5] [%clk 0:12:21] } 36... Kd5 { [%eval #5] [%clk 0:12:02] } 37. Rxb6 { [%eval #4] [%clk 0:12:24] } 37... e5 { [%eval #3] [%clk 0:12:02] } 38. Qf7+ { [%eval #4] [%clk 0:12:25] } 38... Ke4 { [%eval #4] [%clk 0:12:01] } 39. Qxf6 { [%eval #4] [%clk 0:12:28] } 39... exd4?? { [%eval #2] } { Checkmate is now unavoidable. Kd3 was best. } { [%clk 0:11:55] } 40. Qxd4+ { [%eval #1] [%clk 0:12:32] } 40... Kf5 { [%eval #1] [%clk 0:11:40] } 41. Rb5+ { [%eval #3] [%clk 0:12:33] } 41... Ke6 { [%eval #3] [%clk 0:11:39] } 42. Qd6+ { [%eval #2] [%clk 0:12:34] } 42... Kf7 { [%eval #2] [%clk 0:11:38] } 43. Rb7+ { [%eval #1] [%clk 0:12:37] } 43... Ke8 { [%eval #1] [%clk 0:11:40] } 44. Qb8# { [%clk 0:12:40] } 1-0