Event: Las Vegas National Open 2023
Date: 2023-06-18
White: Richard Bitoon
WhiteTitle: GM
Black: Ruiyang Yan
BlackTitle: FM
Result: 1-0
ECO: B50
Opening: Sicilian Defense: Delayed Alapin Variation, with d6
Variant: Standard
TimeControl: G/90 +30 sec inc

1. e4 { [%eval 0.36] [%clk 1:21:07] } 1... c5 { [%eval 0.32] [%clk 1:30:51] } 2. Nf3 { [%eval 0.0] [%clk 1:21:28] } 2... d6 { [%eval 0.0] [%clk 1:31:09] } 3. c3 { [%eval 0.0] [%clk 1:21:44] } 3... Nf6 { [%eval 0.0] [%clk 1:30:41] } 4. h3 { [%eval 0.0] [%clk 1:22:10] } 4... g6 { [%eval 0.08] [%clk 1:30:28] } 5. Bd3 { [%eval 0.13] [%clk 1:22:30] } 5... Bg7 { [%eval 0.0] [%clk 1:30:33] } 6. Bc2 { [%eval 0.01] [%clk 1:22:55] } 6... O-O { [%eval 0.01] [%clk 1:23:21] } 7. d4 { [%eval 0.21] [%clk 1:23:07] } 7... cxd4 { [%eval 0.0] [%clk 1:23:18] } 8. cxd4 { [%eval 0.18] [%clk 1:23:33] } 8... Nc6 { [%eval 0.19] [%clk 1:22:31] } 9. Nc3 { [%eval 0.13] [%clk 1:20:52] } 9... e5 { [%eval 0.09] [%clk 1:17:30] } 10. O-O { [%eval 0.15] [%clk 1:14:38] } 10... h6?! { [%eval 0.87] } { Inaccuracy. exd4 was best. } { [%clk 0:55:41] } 11. Be3 { [%eval 0.97] [%clk 1:12:53] } 11... Bd7 { [%eval 1.04] [%clk 0:54:02] } 12. Qd2 { [%eval 1.01] [%clk 1:10:17] } 12... Kh7 { [%eval 1.01] [%clk 0:53:54] } 13. Rfd1 { [%eval 1.06] [%clk 1:09:50] } 13... a6 { [%eval 1.21] [%clk 0:46:47] } 14. dxe5 { [%eval 1.18] [%clk 1:05:15] } 14... Nxe5 { [%eval 1.33] [%clk 0:45:07] } 15. Nxe5 { [%eval 1.29] [%clk 1:04:56] } 15... dxe5 { [%eval 1.11] [%clk 0:45:33] } 16. Bc5 { [%eval 1.26] [%clk 1:00:01] } 16... Re8 { [%eval 1.25] [%clk 0:44:18] } 17. Qe3 { [%eval 1.29] [%clk 0:59:03] } 17... Bf8 { [%eval 1.44] [%clk 0:30:58] } 18. Bb6?! { [%eval 0.63] } { Inaccuracy. b4 was best. } { [%clk 0:56:34] } 18... Qe7 { [%eval 0.71] [%clk 0:29:19] } 19. Rd3 { [%eval 0.78] [%clk 0:53:55] } 19... Rec8 { [%eval 0.76] [%clk 0:27:45] } 20. Rad1 { [%eval 0.75] [%clk 0:53:16] } 20... Be6 { [%eval 0.79] [%clk 0:25:13] } 21. Bb3 { [%eval 0.78] [%clk 0:46:58] } 21... Bxb3 { [%eval 0.71] [%clk 0:24:36] } 22. axb3 { [%eval 0.84] [%clk 0:47:25] } 22... Qe6 { [%eval 0.92] [%clk 0:16:34] } 23. Nd5 { [%eval 0.84] [%clk 0:46:10] } 23... Nxd5 { [%eval 0.93] [%clk 0:16:56] } 24. exd5 { [%eval 0.91] [%clk 0:46:34] } 24... Qd6 { [%eval 0.8] [%clk 0:17:22] } 25. b4 { [%eval 0.88] [%clk 0:45:34] } 25... Bg7 { [%eval 0.87] [%clk 0:16:19] } 26. Bc5 { [%eval 0.87] [%clk 0:45:40] } 26... Qd7 { [%eval 0.86] [%clk 0:16:44] } 27. d6 { [%eval 0.8] [%clk 0:45:50] } 27... Rc6 { [%eval 0.83] [%clk 0:13:38] } 28. Rd5 { [%eval 0.81] [%clk 0:34:58] } 28... Re8 { [%eval 0.91] [%clk 0:09:04] } 29. b5 { [%eval 0.86] [%clk 0:34:53] } 29... axb5 { [%eval 0.73] [%clk 0:09:17] } 30. Qb3 { [%eval 0.71] [%clk 0:31:29] } 30... Ra6 { [%eval 0.92] [%clk 0:04:04] } 31. Ba3 { [%eval 0.94] [%clk 0:28:21] } 31... Rb6 { [%eval 0.91] [%clk 0:04:10] } 32. Qe3 { [%eval 0.83] [%clk 0:24:54] } 32... Rc6 { [%eval 0.89] [%clk 0:03:51] } 33. Qb3 { [%eval 0.85] [%clk 0:23:38] } 33... Rb6 { [%eval 0.91] [%clk 0:04:08] } 34. Qb4 { [%eval 0.73] [%clk 0:13:26] } 34... e4 { [%eval 0.65] [%clk 0:04:10] } 35. Qc5 { [%eval 0.71] [%clk 0:12:00] } 35... Rc6 { [%eval 0.7] [%clk 0:04:35] } 36. Qxb5 { [%eval 0.52] [%clk 0:11:42] } 36... e3 { [%eval 0.57] [%clk 0:03:56] } 37. fxe3 { [%eval 0.76] [%clk 0:09:09] } 37... Rxe3 { [%eval 0.5] [%clk 0:04:20] } 38. R5d2 { [%eval 0.5] [%clk 0:09:06] } 38... Rg3 { [%eval 0.68] [%clk 0:03:24] } 39. Qe2 { [%eval 0.91] [%clk 0:07:13] } 39... h5 { [%eval 0.86] [%clk 0:01:41] } 40. Kh2 { [%eval 0.98] [%clk 0:04:36] } 40... h4 { [%eval 1.37] [%clk 0:01:24] } 41. Qe4 { [%eval 1.39] [%clk 0:04:32] } 41... Bf6 { [%eval 1.36] [%clk 0:01:20] } 42. Rf2 { [%eval 1.44] [%clk 0:04:15] } 42... Bg5 { [%eval 1.4] [%clk 0:01:32] } 43. Re1? { [%eval 0.28] } { Mistake. Qd5 was best. } { [%clk 0:02:50] } 43... Rc8?? { [%eval 2.45] } { Blunder. f5 was best. } { [%clk 0:01:37] } 44. Qd5?! { [%eval 1.42] } { Inaccuracy. Qd4 was best. } { [%clk 0:02:55] } 44... Rf8?? { [%eval 3.64] } { Blunder. f5 was best. } { [%clk 0:01:28] } 45. Bc5 { [%eval 4.03] [%clk 0:02:21] } 45... Bd8?! { [%eval 5.72] } { Inaccuracy. Kh6 was best. } { [%clk 0:01:17] } 46. Re7 { [%eval 6.18] [%clk 0:01:41] } 46... Bxe7 { [%eval 5.72] [%clk 0:01:03] } 47. dxe7 { [%eval 6.33] [%clk 0:00:53] } 47... Qxd5 { [%eval 5.93] [%clk 0:00:58] } 48. exf8=Q { [%eval 6.24] [%clk 0:01:18] } 48... Rxh3+?! { [%eval 11.87] } { Inaccuracy. f6 was best. } { [%clk 0:00:45] } 49. Kxh3 { [%eval 10.96] [%clk 0:01:21] } 49... Qe6+ { [%eval 14.69] [%clk 0:01:10] } 50. Kh2?! { [%eval 7.66] } { Inaccuracy. Kxh4 was best. } { [%clk 0:01:43] } 50... Qe5+ { [%eval 8.46] [%clk 0:01:35] } 51. Kg1 { [%eval 6.7] [%clk 0:02:07] } 51... Qe1+?? { [%eval #6] } { Checkmate is now unavoidable. f5 was best. } { [%clk 0:02:02] } 52. Rf1 { [%eval #5] [%clk 0:02:32] } 1-0