Event: Round 4: Juan Martin IBARRA - Tobias KOELLE
Date: 2023-09-23
White: Juan Martin IBARRA
WhiteElo: 2219
Black: Tobias KOELLE
BlackTitle: IM
BlackElo: 2458
Result: 0-1
ECO: B33
Opening: Sicilian Defense: Lasker-Pelikan Variation
Variant: Standard

1. e4 { [%eval 0.36] [%clk 1:30:47] } 1... c5 { [%eval 0.32] [%clk 1:30:55] } 2. Nf3 { [%eval 0.0] [%clk 1:31:14] } 2... Nc6 { [%eval 0.0] [%clk 1:31:18] } 3. d4 { [%eval 0.33] [%clk 1:31:35] } 3... cxd4 { [%eval 0.38] [%clk 1:31:43] } 4. Nxd4 { [%eval 0.29] [%clk 1:32:03] } 4... Nf6 { [%eval 0.36] [%clk 1:32:06] } 5. Nc3 { [%eval 0.32] [%clk 1:32:29] } 5... e5 { [%eval 0.13] [%clk 1:32:31] } 6. Ndb5 { [%eval 0.38] [%clk 1:32:23] } 6... d6 { [%eval 0.35] [%clk 1:32:46] } 7. Nd5 { [%eval 0.29] [%clk 1:28:04] } 7... Nxd5 { [%eval 0.38] [%clk 1:32:25] } 8. exd5 { [%eval 0.33] [%clk 1:27:39] } 8... Nb8 { [%eval 0.19] [%clk 1:32:50] } 9. c4 { [%eval 0.19] [%clk 1:25:52] } 9... Be7 { [%eval 0.25] [%clk 1:30:13] } 10. Bd3 { [%eval 0.16] [%clk 1:13:34] } 10... O-O { [%eval 0.39] [%clk 1:30:26] } 11. O-O { [%eval 0.21] [%clk 1:10:23] } 11... a6 { [%eval 0.28] [%clk 1:27:11] } 12. Nc3 { [%eval 0.27] [%clk 1:10:49] } 12... f5 { [%eval 0.29] [%clk 1:26:55] } 13. Qc2?! { [%eval -0.37] } { Inaccuracy. f3 was best. } { [%clk 1:11:12] } 13... e4 { [%eval -0.39] [%clk 1:16:58] } 14. Be2 { [%eval -0.44] [%clk 1:10:22] } 14... Nd7 { [%eval -0.41] [%clk 1:16:34] } 15. a3 { [%eval -0.57] [%clk 0:50:18] } 15... Bf6 { [%eval -0.64] [%clk 1:09:44] } 16. Rd1 { [%eval -0.91] [%clk 0:45:40] } 16... Be5 { [%eval -0.9] [%clk 1:07:46] } 17. Bd2 { [%eval -1.01] [%clk 0:35:14] } 17... Qf6 { [%eval -0.99] [%clk 1:00:56] } 18. Rac1 { [%eval -1.41] [%clk 0:31:34] } 18... Qg6?! { [%eval -0.78] } { Inaccuracy. g5 was best. } { [%clk 1:00:00] } 19. b4?! { [%eval -1.66] } { Inaccuracy. f4 was best. } { [%clk 0:22:06] } 19... Nf6 { [%eval -1.47] [%clk 0:57:49] } 20. c5?? { [%eval -4.25] } { Blunder. f4 was best. } { [%clk 0:13:43] } 20... f4 { [%eval -4.05] [%clk 0:57:18] } 21. f3 { [%eval -4.48] [%clk 0:13:05] } 21... Bf5 { [%eval -4.01] [%clk 0:52:51] } 22. fxe4 { [%eval -5.01] [%clk 0:10:46] } 22... Nxe4 { [%eval -4.36] [%clk 0:52:23] } 23. Qb3?? { [%eval #-10] } { Checkmate is now unavoidable. Nxe4 was best. } { [%clk 0:07:50] } 23... Bh3 { [%eval #-9] [%clk 0:49:08] } 24. Bf3 { [%eval #-9] [%clk 0:07:52] } 24... Bxg2 { [%eval #-20] [%clk 0:48:26] } 25. Nxe4 { [%eval #-9] [%clk 0:07:34] } 25... Bxf3+ { [%eval #-8] [%clk 0:48:44] } 0-1