Event: Round 1: Fontanesi, Riccardo - Theon, Pierre
Site: https://lichess.org/broadcast/fide-world-senior-championship-2025--open-65/round-1/Cb9z7AQN/caYSfYVV
Date: 2025-10-21
White: Fontanesi, Riccardo
WhiteElo: 1744
Black: Theon, Pierre
BlackElo: 2033
Result: 1/2-1/2
ECO: E81
Opening: King's Indian Defense: Sämisch Variation, Normal Defense
Variant: Standard

1. d4 { [%eval 0.17] [%clk 1:30:57] } 1... Nf6 { [%eval 0.19] [%clk 1:30:52] } 2. c4 { [%eval 0.18] [%clk 1:31:22] } 2... g6 { [%eval 0.28] [%clk 1:31:19] } 3. Nc3 { [%eval 0.18] [%clk 1:31:33] } 3... Bg7 { [%eval 0.46] [%clk 1:31:42] } 4. e4 { [%eval 0.4] [%clk 1:31:35] } 4... d6 { [%eval 0.55] [%clk 1:32:04] } 5. f3 { [%eval 0.26] [%clk 1:31:37] } 5... O-O { [%eval 0.37] [%clk 1:32:15] } 6. Be3 { [%eval 0.25] [%clk 1:31:49] } 6... a6 { [%eval 0.42] [%clk 1:30:46] } 7. Qd2 { [%eval 0.3] [%clk 1:31:24] } 7... c6 { [%eval 0.52] [%clk 1:31:09] } 8. O-O-O { [%eval 0.7] [%clk 1:20:55] } 8... b5 { [%eval 0.69] [%clk 1:30:41] } 9. a3?! { [%eval -0.11] } { Inaccuracy. h4 was best. } { [%clk 1:20:00] } 9... Nbd7 { [%eval 0.0] [%clk 1:24:43] } 10. Kb1?! { [%eval -0.84] } { Inaccuracy. h4 was best. } { [%clk 1:12:41] } 10... Rb8 { [%eval -0.91] [%clk 1:18:04] } 11. Bd3 { [%eval -1.11] [%clk 1:05:00] } 11... Nb6 { [%eval -0.83] [%clk 1:12:00] } 12. c5 { [%eval -0.84] [%clk 1:01:15] } 12... Nc4? { [%eval 0.62] } { Mistake. dxc5 was best. } { [%clk 1:08:19] } 13. Bxc4 { [%eval 0.61] [%clk 0:56:43] } 13... bxc4 { [%eval 0.56] [%clk 1:08:36] } 14. Nge2 { [%eval 0.44] [%clk 0:55:02] } 14... Nd7?! { [%eval 1.49] } { Inaccuracy. dxc5 was best. } { [%clk 0:51:16] } 15. cxd6 { [%eval 1.3] [%clk 0:47:53] } 15... exd6 { [%eval 1.32] [%clk 0:51:31] } 16. Bg5 { [%eval 1.08] [%clk 0:44:12] } 16... Qc7 { [%eval 0.99] [%clk 0:48:12] } 17. Rhf1?! { [%eval 0.33] } { Inaccuracy. h4 was best. } { [%clk 0:37:43] } 17... Re8 { [%eval 0.19] [%clk 0:47:40] } 18. f4?? { [%eval -1.61] } { Blunder. h4 was best. } { [%clk 0:35:13] } 18... Qa5?! { [%eval -0.53] } { Inaccuracy. h6 was best. } { [%clk 0:39:40] } 19. Ka2?! { [%eval -1.12] } { Inaccuracy. Ka1 was best. } { [%clk 0:30:23] } 19... h6 { [%eval -1.18] [%clk 0:26:20] } 20. Bh4 { [%eval -1.08] [%clk 0:30:10] } 20... Nb6 { [%eval -0.74] [%clk 0:23:15] } 21. e5?! { [%eval -1.83] } { Inaccuracy. Bf6 was best. } { [%clk 0:29:08] } 21... Na4 { [%eval -1.85] [%clk 0:18:17] } 22. Nxa4 { [%eval -1.79] [%clk 0:28:52] } 22... Qxa4 { [%eval -1.99] [%clk 0:18:45] } 23. Nc3 { [%eval -2.23] [%clk 0:28:16] } 23... Qb3+ { [%eval -2.21] [%clk 0:19:12] } 24. Ka1 { [%eval -1.82] [%clk 0:28:18] } 24... c5?! { [%eval -0.81] } { Inaccuracy. Bf5 was best. } { [%clk 0:14:21] } 25. dxc5 { [%eval -0.8] [%clk 0:21:32] } 25... dxe5 { [%eval -0.8] [%clk 0:14:28] } 26. Nd5?? { [%eval -3.67] } { Blunder. fxe5 was best. } { [%clk 0:21:20] } 26... Be6?? { [%eval -1.53] } { Blunder. Bg4 was best. } { [%clk 0:12:25] } 27. Rf3 { [%eval -1.3] [%clk 0:19:51] } 27... Qb7? { [%eval 0.0] } { Mistake. Qa4 was best. } { [%clk 0:05:27] } 28. Nf6+ { [%eval 0.0] [%clk 0:11:55] } 28... Bxf6 { [%eval 0.0] [%clk 0:05:54] } 29. Bxf6 { [%eval 0.0] [%clk 0:12:24] } 29... Bg4 { [%eval 0.0] [%clk 0:05:39] } 30. fxe5 { [%eval -0.4] [%clk 0:09:16] } 30... Bxf3 { [%eval -0.52] [%clk 0:05:35] } 31. gxf3 { [%eval -0.59] [%clk 0:07:46] } 31... Qxf3 { [%eval -0.74] [%clk 0:04:58] } 32. Rc1 { [%eval -0.71] [%clk 0:03:57] } 32... Qb3? { [%eval 0.78] } { Mistake. Kh7 was best. } { [%clk 0:03:58] } 33. Rc3 { [%eval 0.83] [%clk 0:04:00] } 33... Qb7?? { [%eval 3.47] } { Blunder. Qb5 was best. } { [%clk 0:04:11] } 34. Rc2?? { [%eval 0.04] } { Blunder. c6 was best. } { [%clk 0:03:19] } 34... Kh7 { [%eval 0.12] [%clk 0:04:25] } 35. Rxc4 { [%eval 0.27] [%clk 0:03:19] } 35... h5 { [%eval 0.55] [%clk 0:04:22] } 36. c6 { [%eval 0.55] [%clk 0:03:22] } 36... Qb5 { [%eval 0.84] [%clk 0:04:13] } 37. Qc2 { [%eval 0.51] [%clk 0:03:29] } 37... a5?? { [%eval 2.56] } { Blunder. Rec8 was best. } { [%clk 0:02:56] } 38. c7 { [%eval 2.32] [%clk 0:03:19] } 38... Rbc8 { [%eval 2.17] [%clk 0:03:25] } 39. Rc5 { [%eval 2.19] [%clk 0:03:16] } 39... Qf1+ { [%eval 2.83] [%clk 0:03:38] } 40. Ka2 { [%eval 2.54] [%clk 0:03:07] } 40... Qf5 { [%eval 2.91] [%clk 0:01:36] } 41. Qxf5 { [%eval 3.21] [%clk 0:23:28] } 41... gxf5 { [%eval 3.0] [%clk 0:32:04] } 42. Bd8?? { [%eval 0.23] } { Blunder. b4 was best. } { [%clk 0:10:49] } 42... f4 { [%eval 0.29] [%clk 0:32:01] } 43. Rc4 { [%eval 0.0] [%clk 0:10:48] } 43... Rxe5 { [%eval 0.0] [%clk 0:31:58] } 44. Rxf4 { [%eval 0.0] [%clk 0:22:44] } 44... f5 { [%eval 0.07] [%clk 0:20:19] } 1/2-1/2