Event: ZONAL 2.5 ABSOLUTO CHILE 2025
Site: Polideportivo Estadio Nacional, Chile
Date: 2025-03-10
White: Heinichen R., Juan Uvaldo
WhiteTitle: CM
WhiteElo: 2123
Black: Melian, Juan Sebastian
BlackTitle: FM
BlackElo: 2341
Result: 1/2-1/2
ECO: B28
Opening: Sicilian Defense: O'Kelly Variation, Venice System, Barcza Line
Variant: Standard
TimeControl: 90 minutes with 30 seconds increment from move 1

1. e4 { [%eval 0.18] [%clk 1:30:56] } 1... c5 { [%eval 0.25] [%clk 1:26:45] } 2. Nf3 { [%eval 0.2] [%clk 1:31:09] } 2... a6 { [%eval 0.5] [%clk 1:27:11] } 3. c3 { [%eval 0.28] [%clk 1:30:09] } 3... Nf6 { [%eval 0.39] [%clk 1:25:58] } 4. e5 { [%eval 0.3] [%clk 1:27:46] } 4... Nd5 { [%eval 0.34] [%clk 1:26:22] } 5. Bc4 { [%eval 0.34] [%clk 1:24:44] } 5... Nb6 { [%eval 0.42] [%clk 1:24:00] } 6. Bb3 { [%eval 0.25] [%clk 1:23:43] } 6... e6 { [%eval 0.64] [%clk 1:24:14] } 7. O-O { [%eval 0.74] [%clk 1:23:36] } 7... d6 { [%eval 0.72] [%clk 1:23:12] } 8. d4 { [%eval 0.89] [%clk 1:21:07] } 8... cxd4 { [%eval 1.08] [%clk 1:23:02] } 9. cxd4 { [%eval 0.78] [%clk 1:21:13] } 9... Be7 { [%eval 0.91] [%clk 1:21:25] } 10. Nc3 { [%eval 0.97] [%clk 1:21:05] } 10... O-O { [%eval 1.13] [%clk 1:19:27] } 11. Ne4?! { [%eval 0.28] } { Inaccuracy. Qe2 was best. } { [%clk 1:12:50] } 11... Nc6 { [%eval 0.67] [%clk 1:16:45] } 12. Bf4?! { [%eval 0.05] } { Inaccuracy. Qe2 was best. } { [%clk 1:03:48] } 12... d5 { [%eval 0.55] [%clk 1:12:51] } 13. Ned2 { [%eval 0.03] [%clk 1:03:43] } 13... Bd7 { [%eval 0.06] [%clk 1:11:12] } 14. a3 { [%eval 0.09] [%clk 0:48:52] } 14... Rc8 { [%eval 0.5] [%clk 1:06:47] } 15. Bc2 { [%eval 0.03] [%clk 0:44:37] } 15... Na5?! { [%eval 0.84] } { Inaccuracy. f5 was best. } { [%clk 1:02:59] } 16. Qb1?! { [%eval 0.21] } { Inaccuracy. Re1 was best. } { [%clk 0:42:09] } 16... h6 { [%eval 0.19] [%clk 1:00:47] } 17. b3 { [%eval 0.15] [%clk 0:39:54] } 17... Nc6 { [%eval 0.37] [%clk 0:55:16] } 18. Rc1?! { [%eval -0.27] } { Inaccuracy. Qb2 was best. } { [%clk 0:36:05] } 18... Na7 { [%eval 0.22] [%clk 0:53:11] } 19. g3 { [%eval -0.05] [%clk 0:31:44] } 19... Nb5 { [%eval 0.34] [%clk 0:52:36] } 20. Qb2 { [%eval 0.39] [%clk 0:32:02] } 20... a5 { [%eval 0.57] [%clk 0:45:03] } 21. Kg2 { [%eval 0.55] [%clk 0:24:12] } 21... Rc7?! { [%eval 1.18] } { Inaccuracy. f5 was best. } { [%clk 0:40:28] } 22. a4?! { [%eval 0.58] } { Inaccuracy. Nb1 was best. } { [%clk 0:21:04] } 22... Na7 { [%eval 0.82] [%clk 0:40:28] } 23. Bd3 { [%eval 0.89] [%clk 0:20:49] } 23... Nc6 { [%eval 0.87] [%clk 0:39:47] } 24. Be2? { [%eval -0.25] } { Mistake. h4 was best. } { [%clk 0:19:22] } 24... Qb8?! { [%eval 0.7] } { Inaccuracy. Be8 was best. } { [%clk 0:36:08] } 25. h4 { [%eval 0.72] [%clk 0:19:19] } 25... Rfc8 { [%eval 0.77] [%clk 0:36:26] } 26. Nf1 { [%eval 0.26] [%clk 0:19:40] } 26... Nb4 { [%eval 0.28] [%clk 0:30:16] } 27. Ne3 { [%eval 0.27] [%clk 0:18:37] } 27... Na8 { [%eval 0.81] [%clk 0:26:15] } 28. h5 { [%eval 0.81] [%clk 0:18:19] } 28... Rxc1 { [%eval 1.1] [%clk 0:23:31] } 29. Rxc1 { [%eval 1.06] [%clk 0:18:42] } 29... Rxc1 { [%eval 0.97] [%clk 0:23:56] } 30. Qxc1 { [%eval 1.1] [%clk 0:19:07] } 30... b5? { [%eval 2.6] } { Mistake. Qc8 was best. } { [%clk 0:23:44] } 31. axb5 { [%eval 2.5] [%clk 0:16:18] } 31... Nc7 { [%eval 2.18] [%clk 0:24:02] } 32. Bxh6 { [%eval 2.14] [%clk 0:12:33] } 32... gxh6?! { [%eval 3.46] } { Inaccuracy. Nxb5 was best. } { [%clk 0:19:31] } 33. Ng4?? { [%eval 0.04] } { Blunder. b6 was best. } { [%clk 0:13:02] } 33... Bxb5 { [%eval 0.24] [%clk 0:19:14] } 34. Bxb5 { [%eval 0.0] [%clk 0:11:49] } 34... Nxb5 { [%eval 0.08] [%clk 0:19:42] } 35. Qxh6 { [%eval 0.0] [%clk 0:12:10] } 35... Qf8 { [%eval 0.0] [%clk 0:19:18] } 36. Nf6+? { [%eval -1.4] } { Mistake. Qf4 was best. } { [%clk 0:07:29] } 36... Bxf6 { [%eval -1.35] [%clk 0:19:41] } 37. Qxf6 { [%eval -1.29] [%clk 0:07:56] } 37... Nc7? { [%eval 0.05] } { Mistake. Nc3 was best. } { [%clk 0:16:10] } 38. Qg5+ { [%eval 0.08] [%clk 0:05:42] } 38... Kh8 { [%eval 0.26] [%clk 0:16:23] } 39. Qf6+ { [%eval 0.09] [%clk 0:04:52] } 39... Kg8 { [%eval 0.15] [%clk 0:16:51] } 40. Qg5+ { [%eval 0.06] [%clk 0:03:25] } 40... Kh8 { [%eval 0.12] [%clk 0:17:15] } 41. Qf6+ { [%eval 0.0] [%clk 0:03:14] } 1/2-1/2