Event: Round 4: Montero Martinez, Cristhian - Roos, Louis
Site: https://lichess.org/broadcast/fide-world-senior-championship-2025--open-65/round-4/9mgBGVnn/Bbk5Isnp
Date: 2025-10-24
White: Montero Martinez, Cristhian
WhiteTitle: FM
WhiteElo: 2028
Black: Roos, Louis
BlackTitle: IM
BlackElo: 2285
Result: 0-1
ECO: C00
Opening: French Defense: King's Indian Attack
Variant: Standard

1. e4 { [%eval 0.18] [%clk 1:30:56] } 1... e6 { [%eval 0.3] [%clk 1:30:31] } 2. d3 { [%eval 0.0] [%clk 1:31:01] } 2... d5 { [%eval 0.0] [%clk 1:30:24] } 3. Nd2 { [%eval 0.0] [%clk 1:31:11] } 3... Nf6 { [%eval 0.0] [%clk 1:29:24] } 4. Ngf3 { [%eval -0.08] [%clk 1:31:12] } 4... Be7 { [%eval 0.0] [%clk 1:29:34] } 5. g3 { [%eval -0.05] [%clk 1:31:27] } 5... a5 { [%eval -0.09] [%clk 1:29:53] } 6. Bg2 { [%eval -0.29] [%clk 1:31:37] } 6... a4 { [%eval -0.16] [%clk 1:30:15] } 7. a3 { [%eval -0.19] [%clk 1:31:51] } 7... Nc6 { [%eval 0.13] [%clk 1:30:27] } 8. O-O { [%eval 0.08] [%clk 1:31:55] } 8... O-O { [%eval 0.11] [%clk 1:29:07] } 9. Re1 { [%eval 0.07] [%clk 1:29:42] } 9... dxe4 { [%eval 0.13] [%clk 1:28:05] } 10. dxe4 { [%eval 0.0] [%clk 1:29:57] } 10... e5 { [%eval 0.01] [%clk 1:28:20] } 11. c3?! { [%eval -0.88] } { Inaccuracy. b3 was best. } { [%clk 1:19:29] } 11... Bc5 { [%eval -0.87] [%clk 1:26:24] } 12. h3 { [%eval -1.07] [%clk 1:19:43] } 12... h6 { [%eval -1.03] [%clk 1:24:13] } 13. Qe2 { [%eval -1.1] [%clk 1:09:25] } 13... b6 { [%eval -0.79] [%clk 1:15:35] } 14. Nh4 { [%eval -1.16] [%clk 1:05:28] } 14... Ba6 { [%eval -0.84] [%clk 1:07:16] } 15. Qf3 { [%eval -1.2] [%clk 1:05:33] } 15... Qd3 { [%eval -1.16] [%clk 1:04:00] } 16. Bf1 { [%eval -0.95] [%clk 1:05:00] } 16... Qxf3 { [%eval -0.94] [%clk 1:02:47] } 17. Nhxf3 { [%eval -1.12] [%clk 1:05:16] } 17... Rfe8 { [%eval -0.86] [%clk 0:55:38] } 18. Bxa6 { [%eval -0.97] [%clk 1:00:03] } 18... Rxa6 { [%eval -0.98] [%clk 0:55:59] } 19. Nc4 { [%eval -0.97] [%clk 0:58:27] } 19... b5 { [%eval -0.69] [%clk 0:52:32] } 20. Be3 { [%eval -0.73] [%clk 0:55:35] } 20... Bf8 { [%eval -0.29] [%clk 0:51:16] } 21. Ncd2 { [%eval -0.33] [%clk 0:55:12] } 21... Na5 { [%eval -0.4] [%clk 0:51:34] } 22. Rad1 { [%eval -0.4] [%clk 0:54:36] } 22... c5 { [%eval -0.34] [%clk 0:51:26] } 23. Kf1 { [%eval -0.45] [%clk 0:50:04] } 23... Bd6 { [%eval -0.18] [%clk 0:45:08] } 24. Nh4 { [%eval -0.27] [%clk 0:47:55] } 24... b4 { [%eval -0.16] [%clk 0:41:44] } 25. Nf5 { [%eval -0.19] [%clk 0:47:27] } 25... Bf8 { [%eval -0.09] [%clk 0:42:02] } 26. axb4 { [%eval -0.29] [%clk 0:45:15] } 26... cxb4 { [%eval -0.22] [%clk 0:42:19] } 27. Ra1? { [%eval -1.48] } { Mistake. cxb4 was best. } { [%clk 0:45:33] } 27... bxc3 { [%eval -1.35] [%clk 0:37:09] } 28. bxc3 { [%eval -1.36] [%clk 0:45:57] } 28... a3 { [%eval -1.65] [%clk 0:37:31] } 29. c4 { [%eval -1.92] [%clk 0:44:46] } 29... Nb7?! { [%eval -1.12] } { Inaccuracy. Bb4 was best. } { [%clk 0:36:28] } 30. Ra2 { [%eval -1.49] [%clk 0:42:21] } 30... Nd7 { [%eval -1.43] [%clk 0:28:39] } 31. Rea1 { [%eval -1.45] [%clk 0:40:53] } 31... Rea8 { [%eval -1.43] [%clk 0:28:27] } 32. Ke2 { [%eval -1.78] [%clk 0:33:56] } 32... Nd8 { [%eval -1.69] [%clk 0:27:33] } 33. Nb1 { [%eval -1.81] [%clk 0:31:33] } 33... Nc6 { [%eval -2.06] [%clk 0:27:21] } 34. c5 { [%eval -2.41] [%clk 0:30:40] } 34... g6?? { [%eval 0.0] } { Blunder. Nxc5 was best. } { [%clk 0:20:43] } 35. Nxh6+?? { [%eval -2.98] } { Blunder. Nd6 was best. } { [%clk 0:30:12] } 35... Bxh6 { [%eval -2.84] [%clk 0:21:01] } 36. Bxh6 { [%eval -3.56] [%clk 0:30:35] } 36... Nd4+ { [%eval -3.44] [%clk 0:21:16] } 37. Kd3?! { [%eval -5.12] } { Inaccuracy. Kd1 was best. } { [%clk 0:24:13] } 37... Nxc5+ { [%eval -5.13] [%clk 0:19:33] } 38. Kc4 { [%eval -5.03] [%clk 0:24:25] } 38... Ncb3 { [%eval -5.07] [%clk 0:19:47] } 39. Nc3 { [%eval -5.36] [%clk 0:24:28] } 39... Nxa1 { [%eval -5.26] [%clk 0:18:32] } 40. Rxa1 { [%eval -5.35] [%clk 0:24:56] } 40... a2 { [%eval -5.13] [%clk 0:18:41] } 0-1