Event: Round 5: Koichi B Nicholas - Yichen Han
Date: 2022-12-03
White: Koichi B Nicholas
Black: Yichen Han
Result: 1-0
ECO: B33
Opening: Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation
Variant: Standard

1. e4 { [%eval 0.36] [%clk 0:03:02] } 1... c5 { [%eval 0.32] [%clk 0:03:01] } 2. Nf3 { [%eval 0.0] [%clk 0:03:03] } 2... Nc6 { [%eval 0.0] [%clk 0:03:02] } 3. d4 { [%eval 0.33] [%clk 0:03:04] } 3... cxd4 { [%eval 0.38] [%clk 0:03:03] } 4. Nxd4 { [%eval 0.29] [%clk 0:03:04] } 4... Nf6 { [%eval 0.36] [%clk 0:03:04] } 5. Nc3 { [%eval 0.32] [%clk 0:03:05] } 5... e5 { [%eval 0.13] [%clk 0:03:05] } 6. Ndb5 { [%eval 0.38] [%clk 0:03:06] } 6... d6 { [%eval 0.35] [%clk 0:03:06] } 7. Bg5 { [%eval 0.0] [%clk 0:03:07] } 7... a6 { [%eval 0.25] [%clk 0:03:08] } 8. Na3 { [%eval 0.28] [%clk 0:03:08] } 8... b5 { [%eval 0.34] [%clk 0:03:09] } 9. Bxf6 { [%eval 0.17] [%clk 0:03:08] } 9... gxf6 { [%eval 0.3] [%clk 0:03:10] } 10. Nd5 { [%eval 0.3] [%clk 0:03:09] } 10... f5 { [%eval 0.17] [%clk 0:03:08] } 11. g3 { [%eval 0.09] [%clk 0:03:09] } 11... Bg7 { [%eval 0.48] [%clk 0:02:47] } 12. Bg2 { [%eval 0.05] [%clk 0:03:10] } 12... O-O?! { [%eval 0.99] } { Inaccuracy. f4 was best. } { [%clk 0:02:40] } 13. exf5 { [%eval 0.66] [%clk 0:03:09] } 13... Bxf5 { [%eval 0.73] [%clk 0:02:20] } 14. Ne3 { [%eval 0.5] [%clk 0:03:09] } 14... Ne7 { [%eval 0.94] [%clk 0:02:03] } 15. Nxf5 { [%eval 0.95] [%clk 0:02:57] } 15... Nxf5 { [%eval 1.0] [%clk 0:02:03] } 16. Qh5 { [%eval 0.77] [%clk 0:02:48] } 16... Nd4 { [%eval 0.71] [%clk 0:01:46] } 17. c3 { [%eval 0.69] [%clk 0:02:29] } 17... b4 { [%eval 0.7] [%clk 0:01:43] } 18. cxd4 { [%eval 0.49] [%clk 0:02:16] } 18... bxa3 { [%eval 0.68] [%clk 0:01:44] } 19. Be4 { [%eval 0.28] [%clk 0:01:47] } 19... Qa5+?? { [%eval 2.53] } { Blunder. h6 was best. } { [%clk 0:01:28] } 20. b4 { [%eval 2.1] [%clk 0:01:34] } 20... Qxb4+ { [%eval 2.5] [%clk 0:01:26] } 21. Kf1 { [%eval 2.37] [%clk 0:01:34] } 21... h6 { [%eval 2.31] [%clk 0:01:03] } 22. Qf5 { [%eval 2.58] [%clk 0:01:26] } 22... Rfc8 { [%eval 2.86] [%clk 0:00:48] } 23. Bxa8 { [%eval 2.65] [%clk 0:01:17] } 23... Rxa8 { [%eval 2.61] [%clk 0:00:46] } 24. Qf3?! { [%eval 1.56] } { Inaccuracy. Kg2 was best. } { [%clk 0:01:00] } 24... Rc8? { [%eval 3.44] } { Mistake. Re8 was best. } { [%clk 0:00:39] } 25. Kg2 { [%eval 3.73] [%clk 0:00:55] } 25... Qxd4 { [%eval 4.5] [%clk 0:00:25] } 26. Rhd1? { [%eval 2.41] } { Mistake. Rac1 was best. } { [%clk 0:00:51] } 26... e4 { [%eval 2.46] [%clk 0:00:20] } 27. Qf5 { [%eval 2.11] [%clk 0:00:40] } 27... Qc4 { [%eval 2.35] [%clk 0:00:13] } 28. Rac1 { [%eval 2.15] [%clk 0:00:37] } 28... Qxc1 { [%eval 2.78] [%clk 0:00:12] } 29. Rxc1 { [%eval 2.49] [%clk 0:00:38] } 29... Rxc1 { [%eval 2.53] [%clk 0:00:13] } 30. Qxe4 { [%eval 2.35] [%clk 0:00:38] } 30... Rc5?! { [%eval 3.2] } { Inaccuracy. Ra1 was best. } { [%clk 0:00:07] } 31. Qa8+ { [%eval 3.46] [%clk 0:00:36] } 31... Kh7 { [%eval 3.52] [%clk 0:00:06] } 32. Qxa6 { [%eval 3.23] [%clk 0:00:36] } 32... Rc3 { [%eval 3.84] [%clk 0:00:04] } 33. Qxd6 { [%eval 3.39] [%clk 0:00:33] } 33... Kg8 { [%eval 3.72] [%clk 0:00:04] } 34. h4 { [%eval 3.62] [%clk 0:00:27] } 34... Kh7? { [%eval 7.37] } { Mistake. Bf8 was best. } { [%clk 0:00:06] } 35. h5? { [%eval 3.66] } { Mistake. Qb8 was best. } { [%clk 0:00:27] } 35... Kg8 { [%eval 3.19] [%clk 0:00:07] } 36. Qd7 { [%eval 2.98] [%clk 0:00:23] } 36... Bf6 { [%eval 3.48] [%clk 0:00:05] } 37. Qf5 { [%eval 3.32] [%clk 0:00:20] } 37... Bg7 { [%eval 3.78] [%clk 0:00:05] } 38. g4 { [%eval 4.25] [%clk 0:00:18] } 38... Rc7 { [%eval 5.11] [%clk 0:00:04] } 39. Qd3 { [%eval 4.25] [%clk 0:00:17] } 39... Bb2?? { [%eval 10.67] } { Blunder. Rc3 was best. } { [%clk 0:00:04] } 40. Qd8+ { [%eval 10.66] [%clk 0:00:17] } 40... Kg7 { [%eval 10.74] [%clk 0:00:05] } 41. Qxc7 { [%eval 10.34] [%clk 0:00:18] } 41... Kf6 { [%eval 11.98] [%clk 0:00:06] } 42. Qc4 { [%eval 11.34] [%clk 0:00:19] } 42... Kg5?! { [%eval #6] } { Checkmate is now unavoidable. Kg7 was best. } { [%clk 0:00:07] } 43. Kf3?! { [%eval 12.2] } { Lost forced checkmate sequence. Qxf7 was best. } { [%clk 0:00:19] } 43... Kh4?! { [%eval #5] } { Checkmate is now unavoidable. Kf6 was best. } { [%clk 0:00:06] } 44. Qxf7 { [%eval #4] [%clk 0:00:17] } 44... Bc1 { [%eval #4] [%clk 0:00:07] } 45. Qc7?! { [%eval 14.43] } { Lost forced checkmate sequence. g5 was best. } { [%clk 0:00:17] } 45... Bb2 { [%eval #5] [%clk 0:00:07] } 46. Qg3+?! { [%eval 15.87] } { Lost forced checkmate sequence. Ke4 was best. } { [%clk 0:00:15] } 46... Kg5 { [%eval #5] [%clk 0:00:08] } 47. Ke4 { [%eval #7] [%clk 0:00:17] } 47... Bc1 { [%eval #4] [%clk 0:00:07] } 48. f4+ { [%eval #8] [%clk 0:00:17] } 48... Kf6 { [%eval #7] [%clk 0:00:08] } 49. Qc3+ { [%eval #6] [%clk 0:00:15] } 1-0