Event: Round 11: Richardson, John R - Siva Mahadevan
Date: 2025-05-05
White: Richardson, John R
WhiteTitle: FM
WhiteElo: 2253
Black: Siva Mahadevan
BlackTitle: IM
BlackElo: 2385
Result: 0-1
ECO: D43
Opening: Semi-Slav Defense: Anti-Moscow Gambit
Variant: Standard

1. d4 { [%eval 0.17] [%clk 1:30:59] } 1... d5 { [%eval 0.2] [%clk 1:30:37] } 2. c4 { [%eval 0.26] [%clk 1:31:26] } 2... c6 { [%eval 0.21] [%clk 1:30:49] } 3. Nc3 { [%eval 0.17] [%clk 1:31:51] } 3... Nf6 { [%eval 0.2] [%clk 1:31:06] } 4. Nf3 { [%eval 0.16] [%clk 1:32:15] } 4... e6 { [%eval 0.12] [%clk 1:31:18] } 5. Bg5 { [%eval 0.1] [%clk 1:32:41] } 5... h6 { [%eval 0.14] [%clk 1:30:36] } 6. Bh4 { [%eval 0.1] [%clk 1:33:07] } 6... dxc4 { [%eval 0.2] [%clk 1:30:45] } 7. e4 { [%eval 0.15] [%clk 1:33:15] } 7... g5 { [%eval 0.15] [%clk 1:30:50] } 8. Bg3 { [%eval 0.37] [%clk 1:33:41] } 8... b5 { [%eval 0.44] [%clk 1:31:15] } 9. Be2 { [%eval 0.42] [%clk 1:30:30] } 9... Bb7 { [%eval 0.4] [%clk 1:30:49] } 10. O-O { [%eval 0.33] [%clk 1:29:20] } 10... Nbd7 { [%eval 0.36] [%clk 1:31:08] } 11. Re1? { [%eval -0.78] } { Mistake. Ne5 was best. } { [%clk 1:21:41] } 11... Qb6?! { [%eval 0.0] } { Inaccuracy. Nh5 was best. } { [%clk 1:22:39] } 12. h4 { [%eval -0.53] [%clk 1:09:29] } 12... g4? { [%eval 0.61] } { Mistake. Rg8 was best. } { [%clk 1:09:30] } 13. Ne5 { [%eval 0.87] [%clk 1:09:43] } 13... Rg8 { [%eval 0.99] [%clk 1:09:51] } 14. a4 { [%eval 0.69] [%clk 1:07:22] } 14... Bb4?! { [%eval 1.35] } { Inaccuracy. a6 was best. } { [%clk 0:56:44] } 15. Nxd7 { [%eval 1.37] [%clk 1:00:26] } 15... Nxd7 { [%eval 1.45] [%clk 0:56:39] } 16. d5 { [%eval 1.51] [%clk 0:59:49] } 16... a6 { [%eval 1.69] [%clk 0:46:35] } 17. dxe6 { [%eval 1.74] [%clk 0:58:51] } 17... fxe6 { [%eval 1.53] [%clk 0:47:03] } 18. Bxg4 { [%eval 1.5] [%clk 0:59:10] } 18... O-O-O { [%eval 1.61] [%clk 0:40:28] } 19. Kh2 { [%eval 1.59] [%clk 0:56:20] } 19... Nc5 { [%eval 1.47] [%clk 0:40:46] } 20. Qe2 { [%eval 1.77] [%clk 0:56:20] } 20... Rd3 { [%eval 1.9] [%clk 0:40:52] } 21. Bh3 { [%eval 1.76] [%clk 0:41:45] } 21... Qd8 { [%eval 2.0] [%clk 0:37:09] } 22. Qh5 { [%eval 1.89] [%clk 0:41:28] } 22... Qf6 { [%eval 1.97] [%clk 0:37:21] } 23. axb5 { [%eval 1.82] [%clk 0:35:45] } 23... axb5 { [%eval 1.88] [%clk 0:33:31] } 24. Rab1? { [%eval 0.62] } { Mistake. Red1 was best. } { [%clk 0:17:24] } 24... Qg7 { [%eval 0.77] [%clk 0:24:05] } 25. Ne2 { [%eval 0.92] [%clk 0:13:56] } 25... Kd8 { [%eval 0.85] [%clk 0:17:13] } 26. Red1?! { [%eval 0.29] } { Inaccuracy. Ra1 was best. } { [%clk 0:13:02] } 26... Ke7?! { [%eval 1.16] } { Inaccuracy. Nxe4 was best. } { [%clk 0:15:43] } 27. Rxd3 { [%eval 1.12] [%clk 0:11:50] } 27... Nxd3 { [%eval 1.56] [%clk 0:16:02] } 28. Nf4? { [%eval 0.12] } { Mistake. f4 was best. } { [%clk 0:09:56] } 28... Bd6 { [%eval 0.1] [%clk 0:15:23] } 29. Nxd3 { [%eval 0.28] [%clk 0:06:36] } 29... Bxg3+ { [%eval 0.18] [%clk 0:15:43] } 30. fxg3 { [%eval 0.2] [%clk 0:07:04] } 30... Qxg3+ { [%eval 0.1] [%clk 0:16:04] } 31. Kh1 { [%eval 0.15] [%clk 0:07:31] } 31... cxd3 { [%eval 0.21] [%clk 0:15:40] } 32. Qxh6 { [%eval 0.0] [%clk 0:07:40] } 32... Qe5 { [%eval 0.0] [%clk 0:13:38] } 33. Rf1 { [%eval 0.0] [%clk 0:05:53] } 33... c5?? { [%eval 2.73] } { Blunder. b4 was best. } { [%clk 0:07:10] } 34. Bxe6 { [%eval 2.7] [%clk 0:06:03] } 34... Rh8 { [%eval 2.52] [%clk 0:07:33] } 35. Rf7+ { [%eval 1.72] [%clk 0:04:52] } 35... Kd6?? { [%eval 6.04] } { Blunder. Ke8 was best. } { [%clk 0:08:02] } 36. Rh7?? { [%eval -5.14] } { Blunder. Qg6 was best. } { [%clk 0:04:30] } 36... Rxh7 { [%eval -4.42] [%clk 0:06:30] } 37. Qxh7 { [%eval -4.21] [%clk 0:05:00] } 37... Qxe6 { [%eval -4.85] [%clk 0:01:29] } 38. Qxb7 { [%eval -4.64] [%clk 0:05:23] } 38... d2?? { [%eval 0.0] } { Blunder. Ke5 was best. } { [%clk 0:01:13] } 39. Qb6+?? { [%eval -7.58] } { Blunder. Qb8+ was best. } { [%clk 0:05:38] } 39... Ke5 { [%eval -6.55] [%clk 0:00:40] } 40. Qxc5+ { [%eval -7.06] [%clk 0:05:50] } 40... Kxe4 { [%eval -7.75] [%clk 0:01:07] } 41. Qc2+ { [%eval -7.92] [%clk 0:03:26] } 41... Ke3 { [%eval -7.34] [%clk 0:30:24] } 42. Qc3+ { [%eval -7.86] [%clk 0:33:23] } 42... Ke2 { [%eval -8.04] [%clk 0:30:49] } 43. Qf3+ { [%eval -8.96] [%clk 0:33:34] } 43... Ke1 { [%eval -8.89] [%clk 0:31:14] } 44. Qg3+ { [%eval -9.0] [%clk 0:33:47] } 44... Kd1 { [%eval -8.09] [%clk 0:31:36] } 45. Kh2 { [%eval -8.04] [%clk 0:29:03] } 45... Qd5 { [%eval -7.73] [%clk 0:29:20] } 46. Qc3? { [%eval #-14] } { Checkmate is now unavoidable. Qc7 was best. } { [%clk 0:19:59] } 46... Ke2 { [%eval #-14] [%clk 0:27:37] } 47. Qc2 { [%eval #-15] [%clk 0:18:02] } 47... Qc4 { [%eval -27.03] [%clk 0:28:02] } 0-1