Event: Round 4: Richard Balansag Bitoon - Koustav Chatterjee
Date: 2023-12-28
White: Richard Balansag Bitoon
WhiteTitle: GM
Black: Koustav Chatterjee
BlackTitle: GM
Result: 1-0
ECO: A22
Opening: English Opening: King's English Variation, Two Knights Variation, Smyslov System
Variant: Standard

1. c4 { [%eval 0.15] [%clk 1:30:00] } 1... Nf6 { [%eval 0.29] [%clk 1:26:58] } 2. Nc3 { [%eval 0.15] [%clk 1:30:00] } 2... e5 { [%eval 0.12] [%clk 1:26:18] } 3. g3 { [%eval 0.0] [%clk 1:29:47] } 3... Bb4 { [%eval 0.17] [%clk 1:25:53] } 4. Bg2 { [%eval 0.0] [%clk 1:29:44] } 4... O-O { [%eval 0.0] [%clk 1:24:19] } 5. e4 { [%eval 0.0] [%clk 1:18:51] } 5... Bxc3 { [%eval 0.0] [%clk 1:22:11] } 6. dxc3 { [%eval 0.0] [%clk 1:18:51] } 6... d6 { [%eval -0.51] [%clk 1:19:50] } 7. Qe2 { [%eval -0.34] [%clk 1:15:53] } 7... a6 { [%eval -0.12] [%clk 1:13:12] } 8. Nf3 { [%eval -0.02] [%clk 1:07:48] } 8... b5 { [%eval 0.0] [%clk 1:10:39] } 9. O-O { [%eval 0.02] [%clk 1:05:52] } 9... bxc4 { [%eval 0.0] [%clk 1:08:50] } 10. Qxc4 { [%eval -0.02] [%clk 1:05:52] } 10... a5 { [%eval 0.0] [%clk 1:02:59] } 11. Rd1 { [%eval 0.0] [%clk 0:53:56] } 11... Nbd7 { [%eval 0.0] [%clk 1:00:49] } 12. Qe2 { [%eval -0.04] [%clk 0:49:36] } 12... Bb7 { [%eval -0.14] [%clk 0:55:04] } 13. Nh4 { [%eval -0.02] [%clk 0:49:19] } 13... Ra6 { [%eval 0.19] [%clk 0:46:10] } 14. Nf5 { [%eval 0.2] [%clk 0:40:57] } 14... Qa8 { [%eval 0.5] [%clk 0:45:17] } 15. f3 { [%eval 0.42] [%clk 0:40:57] } 15... g6 { [%eval 0.56] [%clk 0:44:34] } 16. Nh6+ { [%eval 0.6] [%clk 0:36:54] } 16... Kg7 { [%eval 0.66] [%clk 0:44:07] } 17. Bh3 { [%eval 0.44] [%clk 0:21:20] } 17... Nc5 { [%eval 0.54] [%clk 0:34:58] } 18. Be3 { [%eval 0.26] [%clk 0:19:12] } 18... Ne6? { [%eval 1.45] } { Mistake. Bc8 was best. } { [%clk 0:34:01] } 19. Bxe6 { [%eval 1.39] [%clk 0:11:47] } 19... fxe6 { [%eval 1.41] [%clk 0:34:01] } 20. Bg5 { [%eval 1.35] [%clk 0:11:47] } 20... Rb6 { [%eval 1.69] [%clk 0:31:06] } 21. Be3?! { [%eval 0.91] } { Inaccuracy. c4 was best. } { [%clk 0:08:29] } 21... Ba6 { [%eval 0.94] [%clk 0:29:43] } 22. Qg2 { [%eval 0.68] [%clk 0:08:06] } 22... Rb7 { [%eval 0.73] [%clk 0:28:41] } 23. Rd2 { [%eval 0.25] [%clk 0:08:06] } 23... Qe8?! { [%eval 1.01] } { Inaccuracy. a4 was best. } { [%clk 0:28:10] } 24. Re1?! { [%eval 0.31] } { Inaccuracy. Rc1 was best. } { [%clk 0:06:09] } 24... a4 { [%eval 0.41] [%clk 0:27:34] } 25. Qh3 { [%eval 0.0] [%clk 0:05:39] } 25... Bc4 { [%eval 0.0] [%clk 0:26:32] } 26. a3 { [%eval 0.0] [%clk 0:05:39] } 26... Rb3?! { [%eval 0.65] } { Inaccuracy. Qb8 was best. } { [%clk 0:24:50] } 27. Rf2 { [%eval 0.53] [%clk 0:05:34] } 27... Rb5 { [%eval 0.66] [%clk 0:20:29] } 28. Qh4 { [%eval 0.45] [%clk 0:05:34] } 28... Nd7?! { [%eval 1.31] } { Inaccuracy. Qb8 was best. } { [%clk 0:18:58] } 29. Ng4 { [%eval 1.39] [%clk 0:04:05] } 29... Rf7 { [%eval 1.39] [%clk 0:18:58] } 30. Nh6 { [%eval 1.38] [%clk 0:04:05] } 30... Rf8 { [%eval 1.35] [%clk 0:18:54] } 31. Ng4 { [%eval 1.21] [%clk 0:04:05] } 31... Kh8 { [%eval 1.31] [%clk 0:18:15] } 32. Bh6 { [%eval 1.45] [%clk 0:04:05] } 32... Rf7 { [%eval 1.22] [%clk 0:18:15] } 33. Rd1 { [%eval 1.36] [%clk 0:04:05] } 33... Rb8 { [%eval 1.42] [%clk 0:16:50] } 34. Bg5 { [%eval 0.9] [%clk 0:04:05] } 34... Qf8? { [%eval 2.69] } { Mistake. h5 was best. } { [%clk 0:13:20] } 35. Kg2?? { [%eval 0.49] } { Blunder. Nh6 was best. } { [%clk 0:03:18] } 35... h5 { [%eval 0.44] [%clk 0:10:15] } 36. Bh6 { [%eval 0.42] [%clk 0:03:08] } 36... Qc8 { [%eval 0.5] [%clk 0:10:00] } 37. Bg5 { [%eval 0.49] [%clk 0:02:28] } 37... Nc5?! { [%eval 1.3] } { Inaccuracy. Qf8 was best. } { [%clk 0:05:24] } 38. Nh6 { [%eval 1.32] [%clk 0:00:15] } 38... Rd7?? { [%eval 3.48] } { Blunder. Qf8 was best. } { [%clk 0:05:24] } 39. g4 { [%eval 3.59] [%clk 0:00:15] } 39... Qe8 { [%eval 3.89] [%clk 0:04:09] } 40. gxh5 { [%eval 3.92] [%clk 0:00:15] } 40... gxh5 { [%eval 3.7] [%clk 0:04:09] } 41. Kh1 { [%eval 3.69] [%clk 0:24:12] } 41... Nd3 { [%eval 4.21] [%clk 0:27:29] } 42. Rg2 { [%eval 3.92] [%clk 0:21:20] } 42... Rxb2 { [%eval 4.24] [%clk 0:27:29] } 43. Bd2 { [%eval 3.98] [%clk 0:16:11] } 43... Nf4 { [%eval 4.0] [%clk 0:22:16] } 44. Qf6+ { [%eval 4.29] [%clk 0:10:29] } 44... Kh7 { [%eval 4.21] [%clk 0:22:16] } 45. Rg8 { [%eval 4.35] [%clk 0:09:07] } 45... Qxg8 { [%eval 4.33] [%clk 0:22:16] } 46. Nxg8 { [%eval 4.68] [%clk 0:09:07] } 46... Rg7 { [%eval 4.5] [%clk 0:21:21] } 47. Bxf4 { [%eval 4.53] [%clk 0:08:56] } 47... Be2?? { [%eval #8] } { Checkmate is now unavoidable. exf4 was best. } { [%clk 0:20:03] } 48. Bxe5 { [%eval #7] [%clk 0:06:27] } 1-0