Event: Round 1: Fiorentini, Mauro - Koehler, Gerhard, Dr.
Site: https://lichess.org/broadcast/fide-world-senior-championship-2025--open-65/round-1/Cb9z7AQN/OfLooqRj
Date: 2025-10-21
White: Fiorentini, Mauro
WhiteElo: 1884
Black: Koehler, Gerhard, Dr.
BlackElo: 2142
Result: 0-1
ECO: B96
Opening: Sicilian Defense: Najdorf Variation
Variant: Standard

1. e4 { [%eval 0.18] [%clk 1:30:53] } 1... c5 { [%eval 0.24] [%clk 1:30:54] } 2. Nf3 { [%eval 0.2] [%clk 1:31:16] } 2... d6 { [%eval 0.31] [%clk 1:31:15] } 3. d4 { [%eval 0.22] [%clk 1:31:40] } 3... cxd4 { [%eval 0.19] [%clk 1:31:39] } 4. Nxd4 { [%eval 0.18] [%clk 1:32:03] } 4... Nf6 { [%eval 0.31] [%clk 1:32:00] } 5. Nc3 { [%eval 0.32] [%clk 1:32:27] } 5... a6 { [%eval 0.25] [%clk 1:32:23] } 6. Bg5 { [%eval 0.0] [%clk 1:32:46] } 6... e6 { [%eval 0.17] [%clk 1:32:41] } 7. f4 { [%eval 0.04] [%clk 1:33:10] } 7... Qc7 { [%eval 0.51] [%clk 1:32:47] } 8. Qf3 { [%eval 0.24] [%clk 1:32:26] } 8... Nbd7 { [%eval 0.23] [%clk 1:32:11] } 9. O-O-O { [%eval 0.33] [%clk 1:32:46] } 9... b5 { [%eval 0.15] [%clk 1:22:27] } 10. a3 { [%eval 0.29] [%clk 1:26:36] } 10... Bb7 { [%eval 0.18] [%clk 1:21:46] } 11. g4 { [%eval 0.26] [%clk 1:25:40] } 11... Be7 { [%eval 0.14] [%clk 1:19:23] } 12. Bxf6 { [%eval 0.24] [%clk 1:25:37] } 12... gxf6?! { [%eval 0.99] } { Inaccuracy. Bxf6 was best. } { [%clk 1:18:58] } 13. f5 { [%eval 0.93] [%clk 1:22:28] } 13... e5 { [%eval 1.0] [%clk 1:07:16] } 14. Nde2?! { [%eval -0.02] } { Inaccuracy. Nb3 was best. } { [%clk 1:19:29] } 14... Nb6?! { [%eval 0.71] } { Inaccuracy. Rc8 was best. } { [%clk 1:07:06] } 15. Nd5?! { [%eval 0.03] } { Inaccuracy. Ng3 was best. } { [%clk 1:18:19] } 15... Bxd5 { [%eval 0.22] [%clk 1:02:01] } 16. exd5 { [%eval 0.14] [%clk 1:18:37] } 16... Rc8 { [%eval 0.22] [%clk 1:00:50] } 17. Nc3 { [%eval 0.16] [%clk 1:16:11] } 17... Na4 { [%eval 0.21] [%clk 0:58:35] } 18. Rd3 { [%eval 0.19] [%clk 1:15:25] } 18... Nc5 { [%eval 0.24] [%clk 0:58:38] } 19. Rd2 { [%eval 0.29] [%clk 1:14:26] } 19... Bf8 { [%eval 0.53] [%clk 0:58:31] } 20. Kb1 { [%eval 0.0] [%clk 1:13:08] } 20... Bh6 { [%eval 0.53] [%clk 0:57:50] } 21. Rf2?! { [%eval -0.22] } { Inaccuracy. Re2 was best. } { [%clk 1:12:08] } 21... Qb6 { [%eval -0.42] [%clk 0:56:10] } 22. b4 { [%eval -0.72] [%clk 1:00:19] } 22... Nd7 { [%eval -0.91] [%clk 0:54:25] } 23. Ne4 { [%eval -0.76] [%clk 1:00:08] } 23... Ke7 { [%eval -0.81] [%clk 0:53:41] } 24. c3 { [%eval -0.86] [%clk 0:56:26] } 24... a5 { [%eval -0.94] [%clk 0:49:40] } 25. Bd3 { [%eval -0.86] [%clk 0:54:54] } 25... Ra8 { [%eval -0.85] [%clk 0:47:41] } 26. Ra2 { [%eval -0.71] [%clk 0:53:11] } 26... Rhc8?! { [%eval 0.12] } { Inaccuracy. Ra7 was best. } { [%clk 0:46:06] } 27. h4 { [%eval 0.04] [%clk 0:49:21] } 27... Bf4 { [%eval 0.12] [%clk 0:45:48] } 28. Re1 { [%eval -0.37] [%clk 0:47:25] } 28... Ra7 { [%eval -0.37] [%clk 0:36:57] } 29. Qf2 { [%eval -0.77] [%clk 0:35:08] } 29... Qxf2 { [%eval -1.01] [%clk 0:36:19] } 30. Nxf2?? { [%eval -3.07] } { Blunder. Rxf2 was best. } { [%clk 0:35:32] } 30... Rxc3 { [%eval -3.12] [%clk 0:35:30] } 31. Bxb5 { [%eval -3.0] [%clk 0:35:41] } 31... axb4 { [%eval -2.95] [%clk 0:35:32] } 32. Nd3?! { [%eval -4.42] } { Inaccuracy. a4 was best. } { [%clk 0:32:58] } 32... bxa3 { [%eval -4.46] [%clk 0:31:02] } 33. Nxf4 { [%eval -4.45] [%clk 0:30:30] } 33... Rb3+ { [%eval -4.36] [%clk 0:30:41] } 34. Kc2 { [%eval -4.92] [%clk 0:30:55] } 34... Rxb5 { [%eval -4.97] [%clk 0:30:56] } 35. Nd3 { [%eval -5.07] [%clk 0:26:56] } 35... Rc7+ { [%eval -4.71] [%clk 0:22:34] } 36. Kd2 { [%eval -4.68] [%clk 0:27:08] } 36... Rxd5 { [%eval -4.58] [%clk 0:22:43] } 37. Rxa3 { [%eval -4.51] [%clk 0:26:45] } 37... Rd4 { [%eval -4.5] [%clk 0:22:23] } 38. Rg1?! { [%eval -5.92] } { Inaccuracy. Ke2 was best. } { [%clk 0:26:27] } 38... e4 { [%eval -5.59] [%clk 0:19:25] } 39. Re1 { [%eval -6.54] [%clk 0:26:48] } 39... Ne5 { [%eval -6.53] [%clk 0:19:43] } 0-1