Event: Round 4: Algars, Olle - Serra Olives, Tomas
Site: https://lichess.org/broadcast/fide-world-senior-championship-2025--open-65/round-4/9mgBGVnn/xRqQZOGV
Date: 2025-10-24
White: Algars, Olle
WhiteElo: 1867
Black: Serra Olives, Tomas
BlackTitle: FM
BlackElo: 2026
Result: 1/2-1/2
ECO: B92
Opening: Sicilian Defense: Najdorf Variation, Opocensky Variation
Variant: Standard

1. e4 { [%eval 0.18] [%clk 1:30:56] } 1... c5 { [%eval 0.24] [%clk 1:30:55] } 2. Nf3 { [%eval 0.2] [%clk 1:31:19] } 2... d6 { [%eval 0.31] [%clk 1:31:19] } 3. d4 { [%eval 0.22] [%clk 1:31:44] } 3... cxd4 { [%eval 0.19] [%clk 1:31:44] } 4. Nxd4 { [%eval 0.18] [%clk 1:32:08] } 4... Nf6 { [%eval 0.31] [%clk 1:32:08] } 5. Nc3 { [%eval 0.32] [%clk 1:32:27] } 5... a6 { [%eval 0.25] [%clk 1:32:33] } 6. Be2 { [%eval 0.19] [%clk 1:31:43] } 6... b5?! { [%eval 0.8] } { Inaccuracy. e5 was best. } { [%clk 1:30:29] } 7. a3?! { [%eval 0.15] } { Inaccuracy. a4 was best. } { [%clk 1:28:25] } 7... e5 { [%eval 0.55] [%clk 1:30:05] } 8. Nb3 { [%eval 0.29] [%clk 1:28:31] } 8... Bb7 { [%eval 0.14] [%clk 1:30:06] } 9. Bg5 { [%eval 0.2] [%clk 1:24:06] } 9... Be7?! { [%eval 0.75] } { Inaccuracy. Nbd7 was best. } { [%clk 1:29:32] } 10. Bxf6 { [%eval 0.78] [%clk 1:21:08] } 10... Bxf6 { [%eval 0.74] [%clk 1:29:21] } 11. Nd5 { [%eval 0.23] [%clk 1:18:53] } 11... Nd7 { [%eval 0.29] [%clk 1:22:30] } 12. f3?! { [%eval -0.64] } { Inaccuracy. a4 was best. } { [%clk 1:13:16] } 12... Bg5 { [%eval -0.69] [%clk 1:15:18] } 13. a4 { [%eval -0.78] [%clk 1:09:34] } 13... bxa4 { [%eval -0.68] [%clk 1:11:14] } 14. Rxa4 { [%eval -0.6] [%clk 1:05:09] } 14... O-O { [%eval -0.75] [%clk 1:11:29] } 15. O-O { [%eval -0.56] [%clk 1:01:00] } 15... Nb6 { [%eval -0.38] [%clk 1:08:05] } 16. Nxb6 { [%eval -0.31] [%clk 1:01:14] } 16... Qxb6+ { [%eval -0.43] [%clk 1:07:33] } 17. Kh1 { [%eval -0.44] [%clk 1:01:40] } 17... a5 { [%eval -0.33] [%clk 0:53:23] } 18. Bd3 { [%eval -0.49] [%clk 0:58:34] } 18... Bc6 { [%eval -0.6] [%clk 0:50:31] } 19. Ra2 { [%eval -0.72] [%clk 0:56:29] } 19... g6 { [%eval -0.5] [%clk 0:49:31] } 20. Nd2 { [%eval -0.64] [%clk 0:56:40] } 20... d5 { [%eval -0.3] [%clk 0:45:40] } 21. Qe2 { [%eval -0.52] [%clk 0:52:45] } 21... Bxd2 { [%eval -0.11] [%clk 0:42:29] } 22. Qxd2 { [%eval -0.14] [%clk 0:53:08] } 22... Rfd8 { [%eval -0.08] [%clk 0:42:33] } 23. Qe2 { [%eval -0.12] [%clk 0:51:46] } 23... Rac8 { [%eval -0.03] [%clk 0:38:02] } 24. b3 { [%eval 0.0] [%clk 0:51:09] } 24... Re8 { [%eval 0.18] [%clk 0:23:53] } 25. Rfa1 { [%eval 0.06] [%clk 0:51:27] } 25... Ra8 { [%eval 0.14] [%clk 0:22:04] } 26. Qe1 { [%eval 0.03] [%clk 0:50:13] } 26... Qb4 { [%eval 0.2] [%clk 0:20:27] } 27. exd5 { [%eval 0.17] [%clk 0:46:29] } 27... Bxd5 { [%eval 0.05] [%clk 0:17:58] } 28. h3 { [%eval 0.0] [%clk 0:40:52] } 28... Bc6 { [%eval 0.0] [%clk 0:16:31] } 29. Be4 { [%eval -0.06] [%clk 0:31:23] } 29... Qxe1+ { [%eval 0.12] [%clk 0:13:24] } 30. Rxe1 { [%eval 0.0] [%clk 0:31:45] } 30... Bxe4 { [%eval 0.05] [%clk 0:13:38] } 31. Rxe4 { [%eval 0.05] [%clk 0:32:04] } 31... f6?! { [%eval 0.87] } { Inaccuracy. f5 was best. } { [%clk 0:12:24] } 32. f4?! { [%eval 0.06] } { Inaccuracy. Rea4 was best. } { [%clk 0:29:45] } 32... exf4 { [%eval 0.0] [%clk 0:10:43] } 33. Rxf4 { [%eval -0.08] [%clk 0:29:28] } 33... Kg7 { [%eval 0.0] [%clk 0:10:23] } 34. Rfa4 { [%eval 0.0] [%clk 0:26:35] } 34... Rec8 { [%eval 0.0] [%clk 0:07:05] } 35. b4 { [%eval 0.67] [%clk 0:25:21] } 35... Re8? { [%eval 1.84] } { Mistake. Rc3 was best. } { [%clk 0:01:54] } 36. Rxa5?! { [%eval 1.15] } { Inaccuracy. c4 was best. } { [%clk 0:24:54] } 36... Rab8?! { [%eval 2.35] } { Inaccuracy. Rad8 was best. } { [%clk 0:02:12] } 37. Rb2? { [%eval 0.75] } { Mistake. b5 was best. } { [%clk 0:22:05] } 37... f5?? { [%eval 3.06] } { Blunder. Re1+ was best. } { [%clk 0:01:21] } 38. b5 { [%eval 2.9] [%clk 0:22:29] } 38... f4?! { [%eval 3.87] } { Inaccuracy. Kf6 was best. } { [%clk 0:01:40] } 39. b6 { [%eval 3.67] [%clk 0:22:44] } 39... Re1+ { [%eval 3.96] [%clk 0:01:36] } 40. Kh2 { [%eval 4.03] [%clk 0:23:06] } 40... Rd8 { [%eval 4.32] [%clk 0:01:57] } 41. Rb4 { [%eval 4.28] [%clk 0:21:57] } 41... Rdd1?! { [%eval 5.41] } { Inaccuracy. Rd2 was best. } { [%clk 0:00:39] } 42. Rxf4 { [%eval 5.1] [%clk 0:21:57] } 42... Rb1 { [%eval 5.58] [%clk 0:00:52] } 43. Ra7+ { [%eval 5.59] [%clk 0:21:37] } 43... Kh6 { [%eval 5.41] [%clk 0:01:02] } 44. b7 { [%eval 5.14] [%clk 0:20:17] } 44... Kg5 { [%eval 6.16] [%clk 0:30:12] } 45. Rf3 { [%eval 4.99] [%clk 0:49:52] } 45... h5?! { [%eval 6.45] } { Inaccuracy. Re4 was best. } { [%clk 0:30:03] } 46. Rb3 { [%eval 6.4] [%clk 0:48:01] } 46... Rh1+ { [%eval 6.31] [%clk 0:30:17] } 47. Kg3 { [%eval 6.28] [%clk 0:48:25] } 47... h4+ { [%eval 6.24] [%clk 0:30:02] } 48. Kf2?? { [%eval 0.0] } { Blunder. Kf3 was best. } { [%clk 0:48:42] } 48... Rbe1 { [%eval 0.0] [%clk 0:29:54] } 49. Ra5+ { [%eval 0.0] [%clk 0:48:25] } 49... Kh6 { [%eval 0.0] [%clk 0:29:40] } 50. g4 { [%eval 0.0] [%clk 0:43:07] } 50... Rhf1+ { [%eval 0.0] [%clk 0:29:13] } 51. Kg2 { [%eval 0.0] [%clk 0:43:25] } 51... Rg1+ { [%eval 0.0] [%clk 0:29:27] } 52. Kf2 { [%eval 0.0] [%clk 0:43:28] } 1/2-1/2