Event: Round 4: Ortega, Agustin - Olivares Olivares, Claudio
Site: https://lichess.org/broadcast/maipu-chess-open-2025/round-4/Lv4LSFnf/KBtLwvcA
Date: 2025-09-06
White: Ortega, Agustin
WhiteElo: 1841
Black: Olivares Olivares, Claudio
BlackTitle: FM
BlackElo: 2257
Result: 0-1
ECO: B47
Opening: Sicilian Defense: Taimanov Variation, Bastrikov Variation
Variant: Standard
TimeControl: 60+30

1. e4 { [%eval 0.18] [%clk 0:56:36] } 1... c5 { [%eval 0.24] [%clk 1:00:50] } 2. Nf3 { [%eval 0.2] [%clk 0:56:23] } 2... e6 { [%eval 0.28] [%clk 1:01:00] } 3. d4 { [%eval 0.4] [%clk 0:56:19] } 3... cxd4 { [%eval 0.29] [%clk 1:01:21] } 4. Nxd4 { [%eval 0.35] [%clk 0:56:28] } 4... Nc6 { [%eval 0.28] [%clk 1:01:32] } 5. Nc3 { [%eval 0.26] [%clk 0:55:43] } 5... Qc7 { [%eval 0.35] [%clk 1:01:52] } 6. a3 { [%eval 0.14] [%clk 0:51:52] } 6... a6 { [%eval 0.22] [%clk 1:02:09] } 7. Be2 { [%eval 0.23] [%clk 0:50:07] } 7... Nf6 { [%eval 0.23] [%clk 1:02:32] } 8. Be3 { [%eval 0.17] [%clk 0:49:22] } 8... Be7 { [%eval 0.25] [%clk 1:02:25] } 9. O-O { [%eval 0.16] [%clk 0:48:36] } 9... O-O { [%eval 0.23] [%clk 1:01:38] } 10. Nxc6?! { [%eval -0.32] } { Inaccuracy. f4 was best. } { [%clk 0:45:28] } 10... bxc6 { [%eval -0.32] [%clk 1:01:59] } 11. Bf3 { [%eval -0.53] [%clk 0:38:22] } 11... d5 { [%eval -0.32] [%clk 1:01:16] } 12. Re1 { [%eval -0.53] [%clk 0:33:38] } 12... Rd8 { [%eval -0.33] [%clk 1:00:44] } 13. exd5 { [%eval -0.3] [%clk 0:33:03] } 13... cxd5 { [%eval -0.37] [%clk 1:01:00] } 14. Bd4 { [%eval -0.69] [%clk 0:33:05] } 14... Rb8 { [%eval -0.74] [%clk 1:01:20] } 15. Be5 { [%eval -0.85] [%clk 0:27:55] } 15... Bd6 { [%eval -0.91] [%clk 1:01:43] } 16. Bxd6 { [%eval -0.95] [%clk 0:26:45] } 16... Qxd6 { [%eval -0.77] [%clk 1:02:05] } 17. Qd4 { [%eval -0.79] [%clk 0:26:05] } 17... Bd7 { [%eval -0.75] [%clk 1:01:46] } 18. Ne4?! { [%eval -1.56] } { Inaccuracy. Rab1 was best. } { [%clk 0:24:54] } 18... Nxe4 { [%eval -1.33] [%clk 1:01:52] } 19. Bxe4 { [%eval -1.6] [%clk 0:21:23] } 19... Qb6 { [%eval -1.55] [%clk 1:02:00] } 20. Qxb6 { [%eval -1.44] [%clk 0:19:20] } 20... Rxb6 { [%eval -1.41] [%clk 1:02:23] } 21. Bd3 { [%eval -1.53] [%clk 0:19:39] } 21... Rxb2 { [%eval -1.51] [%clk 1:02:47] } 22. Bxa6?! { [%eval -2.22] } { Inaccuracy. Reb1 was best. } { [%clk 0:18:49] } 22... Rxc2 { [%eval -2.15] [%clk 1:03:10] } 23. a4 { [%eval -2.32] [%clk 0:16:00] } 23... Ra8 { [%eval -2.59] [%clk 0:59:30] } 24. Bb5 { [%eval -2.69] [%clk 0:13:43] } 24... Bxb5 { [%eval -2.66] [%clk 0:59:54] } 25. axb5 { [%eval -2.5] [%clk 0:14:10] } 25... Rxa1 { [%eval -2.41] [%clk 1:00:17] } 26. Rxa1 { [%eval -2.3] [%clk 0:14:35] } 26... Kf8 { [%eval -2.2] [%clk 1:00:44] } 27. Rb1 { [%eval -2.6] [%clk 0:14:53] } 27... Rc7 { [%eval -2.51] [%clk 1:01:07] } 28. f3 { [%eval -2.93] [%clk 0:14:17] } 28... Ke7 { [%eval -3.06] [%clk 1:01:33] } 29. Kf2 { [%eval -2.97] [%clk 0:14:19] } 29... Kd6 { [%eval -2.87] [%clk 1:01:58] } 30. Ke3 { [%eval -2.97] [%clk 0:13:55] } 30... Kc5 { [%eval -3.0] [%clk 1:02:18] } 0-1