Event: Round 3: Claudio Emanuele Costantino - Ottavio Mammi
Date: 2023-12-09
White: Claudio Emanuele Costantino
WhiteElo: 1887
Black: Ottavio Mammi
BlackElo: 1939
Result: 1/2-1/2
ECO: B90
Opening: Sicilian Defense: Najdorf Variation, Lipnitsky Attack
Variant: Standard

1. e4 { [%eval 0.36] [%clk 1:30:59] } 1... c5 { [%eval 0.33] [%clk 1:23:55] } 2. Nf3 { [%eval 0.0] [%clk 1:31:21] } 2... d6 { [%eval 0.0] [%clk 1:24:15] } 3. d4 { [%eval 0.25] [%clk 1:31:46] } 3... cxd4 { [%eval 0.13] [%clk 1:24:36] } 4. Nxd4 { [%eval 0.27] [%clk 1:32:14] } 4... Nf6 { [%eval 0.3] [%clk 1:24:57] } 5. Nc3 { [%eval 0.21] [%clk 1:32:36] } 5... a6 { [%eval 0.39] [%clk 1:25:20] } 6. Bc4 { [%eval 0.0] [%clk 1:33:01] } 6... e6 { [%eval 0.06] [%clk 1:25:34] } 7. Bb3 { [%eval 0.0] [%clk 1:33:25] } 7... Be7 { [%eval 0.45] [%clk 1:25:50] } 8. g4 { [%eval 0.65] [%clk 1:33:49] } 8... O-O { [%eval 0.49] [%clk 1:21:36] } 9. Be3 { [%eval 0.62] [%clk 1:31:02] } 9... b5 { [%eval 1.04] [%clk 1:18:09] } 10. g5 { [%eval 1.36] [%clk 1:28:30] } 10... Ne8 { [%eval 1.1] [%clk 1:14:32] } 11. h4 { [%eval 1.1] [%clk 1:23:51] } 11... Nc7 { [%eval 1.61] [%clk 1:10:17] } 12. Qd2 { [%eval 1.05] [%clk 1:21:39] } 12... Bb7 { [%eval 1.39] [%clk 1:08:48] } 13. f3 { [%eval 0.93] [%clk 1:16:14] } 13... Nd7 { [%eval 1.41] [%clk 1:02:55] } 14. O-O-O { [%eval 1.37] [%clk 1:13:23] } 14... b4? { [%eval 2.82] } { Mistake. a5 was best. } { [%clk 1:01:18] } 15. Na4 { [%eval 2.84] [%clk 1:08:29] } 15... d5 { [%eval 3.25] [%clk 1:01:41] } 16. h5 { [%eval 3.14] [%clk 1:02:55] } 16... Ne5 { [%eval 3.86] [%clk 0:35:48] } 17. g6 { [%eval 4.25] [%clk 0:54:04] } 17... Qe8? { [%eval 8.24] } { Mistake. Qd6 was best. } { [%clk 0:25:51] } 18. h6 { [%eval 8.42] [%clk 0:49:34] } 18... Bf6 { [%eval 9.53] [%clk 0:21:11] } 19. gxh7+ { [%eval 7.25] [%clk 0:45:46] } 19... Kh8 { [%eval 7.14] [%clk 0:21:16] } 20. hxg7+ { [%eval 7.04] [%clk 0:44:35] } 20... Bxg7 { [%eval 7.01] [%clk 0:20:37] } 21. Bf4 { [%eval 5.44] [%clk 0:30:11] } 21... Nb5 { [%eval 5.55] [%clk 0:16:39] } 22. Nxb5 { [%eval 5.65] [%clk 0:21:46] } 22... axb5 { [%eval 5.67] [%clk 0:09:52] } 23. Nc5 { [%eval 5.47] [%clk 0:22:00] } 23... Nc4 { [%eval 5.86] [%clk 0:10:17] } 24. Bxc4 { [%eval 5.49] [%clk 0:20:11] } 24... bxc4 { [%eval 7.19] [%clk 0:10:34] } 25. Qxb4?? { [%eval 1.49] } { Blunder. Bh6 was best. } { [%clk 0:19:17] } 25... Rxa2 { [%eval 1.45] [%clk 0:10:49] } 26. c3 { [%eval 1.68] [%clk 0:18:42] } 26... Bc6 { [%eval 2.17] [%clk 0:08:25] } 27. Bd6 { [%eval 1.95] [%clk 0:15:49] } 27... d4?? { [%eval 4.5] } { Blunder. Ra1+ was best. } { [%clk 0:05:54] } 28. Bxf8 { [%eval 4.29] [%clk 0:12:52] } 28... Qxf8 { [%eval 5.71] [%clk 0:06:17] } 29. Qxc4 { [%eval 4.45] [%clk 0:12:30] } 29... Qa8?! { [%eval 6.27] } { Inaccuracy. Ra1+ was best. } { [%clk 0:05:55] } 30. Kb1?! { [%eval 4.05] } { Inaccuracy. cxd4 was best. } { [%clk 0:08:21] } 30... Ra1+ { [%eval 3.82] [%clk 0:01:26] } 31. Kc2 { [%eval 3.52] [%clk 0:08:45] } 31... Ba4+? { [%eval 6.45] } { Mistake. Rxd1 was best. } { [%clk 0:01:55] } 32. Nxa4 { [%eval 5.48] [%clk 0:07:11] } 32... Rxa4 { [%eval 6.5] [%clk 0:02:20] } 33. Qc7 { [%eval 6.25] [%clk 0:07:07] } 33... Ra7 { [%eval 6.87] [%clk 0:02:27] } 34. Qb6 { [%eval 6.41] [%clk 0:07:09] } 34... Rb7 { [%eval 6.78] [%clk 0:02:38] } 35. Ra1?? { [%eval 1.4] } { Blunder. Qd6 was best. } { [%clk 0:06:33] } 35... Qb8 { [%clk 0:02:50] } 36. Qa6 { [%clk 0:05:27] } 36... Rxb2+ { [%clk 0:03:00] } 37. Kd3 { [%clk 0:05:53] } 37... Qd8 { [%clk 0:02:16] } 38. Qa5 { [%clk 0:05:26] } 38... Qd6 { [%clk 0:02:15] } 39. Qa6 { [%clk 0:04:50] } 39... Qc5 { [%clk 0:00:48] } 40. Qa5 { [%clk 0:03:49] } 40... Qd6 { [%clk 0:00:57] } 41. Qa6 { [%clk 0:03:55] } 41... Qc7 { [%clk 0:00:50] } 42. Qa5 { [%clk 0:03:56] } 1/2-1/2