Event: Tournament
Date: 2021-12-18
White: Pugin, Stepan
Black: Nikolaev, Matvei
Result: 1-0
ECO: B20
Opening: Sicilian Defense: Snyder Variation
Variant: Standard

1. e4 { [%eval 0.2] [%clk 1:30:59] } 1... c5 { [%eval 0.32] [%clk 1:17:42] } 2. b3?! { [%eval -0.21] } { Inaccuracy. Nf3 was best. } { [%clk 1:31:15] } 2... e6 { [%eval 0.13] [%clk 1:18:09] } 3. Bb2 { [%eval 0.13] [%clk 1:31:40] } 3... Nc6 { [%eval 0.08] [%clk 1:18:30] } 4. Nf3 { [%eval 0.01] [%clk 1:31:33] } 4... a6 { [%eval 0.15] [%clk 1:18:42] } 5. Be2 { [%eval 0.03] [%clk 1:26:44] } 5... Qc7 { [%eval 0.51] [%clk 1:18:18] } 6. O-O?! { [%eval -0.4] } { Inaccuracy. d4 was best. } { [%clk 1:23:47] } 6... Nf6 { [%eval -0.12] [%clk 1:17:38] } 7. d3 { [%eval -0.25] [%clk 1:20:13] } 7... Be7 { [%eval -0.33] [%clk 1:17:20] } 8. Nbd2 { [%eval -0.22] [%clk 1:19:31] } 8... O-O { [%eval -0.26] [%clk 1:16:49] } 9. d4 { [%eval -0.45] [%clk 1:15:18] } 9... cxd4 { [%eval -0.28] [%clk 1:05:15] } 10. Nxd4 { [%eval -0.2] [%clk 1:15:24] } 10... d6 { [%eval 0.13] [%clk 1:02:59] } 11. c4 { [%eval 0.13] [%clk 1:10:56] } 11... Qb6 { [%eval 0.41] [%clk 1:02:07] } 12. Nxc6 { [%eval 0.39] [%clk 1:08:08] } 12... bxc6 { [%eval 0.34] [%clk 1:00:05] } 13. Qc2 { [%eval 0.08] [%clk 0:59:23] } 13... Nd7 { [%eval 0.12] [%clk 0:54:20] } 14. Nf3 { [%eval 0.05] [%clk 0:54:33] } 14... e5 { [%eval -0.05] [%clk 0:52:34] } 15. Bc3 { [%eval -0.31] [%clk 0:49:48] } 15... Bb7? { [%eval 0.7] } { Mistake. a5 was best. } { [%clk 0:51:21] } 16. b4 { [%eval 0.6] [%clk 0:48:16] } 16... c5 { [%eval 0.77] [%clk 0:46:31] } 17. b5 { [%eval 1.18] [%clk 0:44:56] } 17... Nf6 { [%eval 1.44] [%clk 0:46:50] } 18. Nd2 { [%eval 1.71] [%clk 0:44:15] } 18... axb5 { [%eval 1.74] [%clk 0:45:52] } 19. cxb5 { [%eval 2.39] [%clk 0:44:28] } 19... d5 { [%eval 2.25] [%clk 0:38:35] } 20. Bxe5?! { [%eval 1.39] } { Inaccuracy. a4 was best. } { [%clk 0:37:58] } 20... Qe6 { [%eval 1.21] [%clk 0:37:35] } 21. Bg3 { [%eval 1.43] [%clk 0:34:10] } 21... dxe4 { [%eval 1.62] [%clk 0:35:40] } 22. Bc4?! { [%eval 0.95] } { Inaccuracy. a4 was best. } { [%clk 0:29:58] } 22... Qg4? { [%eval 2.59] } { Mistake. Nd5 was best. } { [%clk 0:35:26] } 23. Rfe1 { [%eval 2.79] [%clk 0:26:12] } 23... Rfd8 { [%eval 2.7] [%clk 0:23:15] } 24. a4 { [%eval 2.57] [%clk 0:23:08] } 24... Bd6? { [%eval 4.58] } { Mistake. h5 was best. } { [%clk 0:19:22] } 25. Nf1 { [%eval 4.48] [%clk 0:18:23] } 25... h5 { [%eval 5.3] [%clk 0:14:32] } 26. Ne3 { [%eval 5.5] [%clk 0:18:02] } 26... Qg5 { [%eval 5.21] [%clk 0:14:38] } 27. a5 { [%eval 5.26] [%clk 0:12:57] } 27... h4 { [%eval 6.48] [%clk 0:09:59] } 28. Bxd6 { [%eval 6.33] [%clk 0:13:10] } 28... Rxd6 { [%eval 6.39] [%clk 0:10:30] } 29. Red1 { [%eval 6.33] [%clk 0:06:05] } 29... Qe5 { [%eval 6.36] [%clk 0:10:34] } 30. a6 { [%eval 6.94] [%clk 0:05:39] } 30... Rb6 { [%eval 7.02] [%clk 0:10:04] } 31. Bxf7+ { [%eval 6.53] [%clk 0:03:54] } 31... Kxf7 { [%eval 6.08] [%clk 0:00:30] } 32. Nc4 { [%eval 6.19] [%clk 0:04:03] } 32... Qxa1 { [%eval 6.71] [%clk 0:00:33] } 33. Rxa1 { [%eval 6.71] [%clk 0:04:26] } 33... Re6 { [%eval 7.09] [%clk 0:01:03] } 34. Rb1 { [%eval 5.87] [%clk 0:03:51] } 34... Bd5?! { [%eval 9.02] } { Inaccuracy. Bxa6 was best. } { [%clk 0:01:27] } 35. b6?! { [%eval 6.07] } { Inaccuracy. Ne3 was best. } { [%clk 0:03:27] } 35... Rxa6 { [%eval 6.17] [%clk 0:01:25] } 36. b7 { [%eval 6.06] [%clk 0:03:38] } 36... Nd7 { [%eval 7.85] [%clk 0:01:44] } 37. Ne3 { [%eval 6.52] [%clk 0:03:18] } 37... Bc6 { [%eval 7.21] [%clk 0:00:55] } 38. b8=Q { [%eval 5.76] [%clk 0:03:30] } 38... Nxb8 { [%eval 5.48] [%clk 0:01:18] } 39. Rxb8 { [%eval 5.71] [%clk 0:03:49] } 39... Ba4?! { [%eval 8.58] } { Inaccuracy. Ra1+ was best. } { [%clk 0:01:37] } 40. Qb2 { [%eval 8.01] [%clk 0:03:55] } 40... Bc6 { [%eval 8.9] [%clk 0:01:57] } 41. h3 { [%eval 6.85] [%clk 0:03:46] } 41... Ra4 { [%eval 8.72] [%clk 0:02:00] } 42. Nf5 { [%eval 7.52] [%clk 0:03:10] } 42... Rf6 { [%eval 7.99] [%clk 0:02:19] } 43. Qe5 { [%eval 7.94] [%clk 0:02:44] } 43... Ra7 { [%eval 10.73] [%clk 0:02:23] } 44. Nd6+ { [%eval 12.25] [%clk 0:01:44] } 44... Kg6 { [%eval 14.37] [%clk 0:02:20] } 45. Rh8 { [%eval 72.65] [%clk 0:01:48] } 45... Ra1+ { [%eval #11] [%clk 0:02:20] } 46. Qxa1?! { [%eval 12.03] } { Lost forced checkmate sequence. Kh2 was best. } { [%clk 0:01:59] } 46... Rxd6 { [%eval #7] [%clk 0:02:49] } 47. Qe5 { [%eval 12.0] [%clk 0:02:13] } 47... Rd1+ { [%eval #6] [%clk 0:02:11] } 48. Kh2 { [%eval 11.87] [%clk 0:02:39] } 48... Bd7?! { [%eval #12] } { Checkmate is now unavoidable. Kf7 was best. } { [%clk 0:02:31] } 49. Qxe4+?! { [%eval 14.03] } { Lost forced checkmate sequence. Qh5+ was best. } { [%clk 0:02:45] } 49... Bf5?! { [%eval #8] } { Checkmate is now unavoidable. Kf7 was best. } { [%clk 0:03:00] } 50. Qe8+ { [%eval #7] [%clk 0:03:02] } 50... Kf6 { [%eval #6] [%clk 0:03:25] } 51. Rf8+ { [%eval #5] [%clk 0:03:21] } 51... Kg5 { [%eval #5] [%clk 0:03:48] } 52. Rxf5+? { [%eval 9.19] } { Lost forced checkmate sequence. Qe5 was best. } { [%clk 0:03:38] } 1-0