Event: Nacional Sub 20 Absoluto 2025
Site: Polideportivo Estadio Nacional, Chile
Date: 2025-01-24
White: Cordero Alchahueni, Jorge Marcelo
WhiteElo: 1841
Black: Perez Rojas, Felipe
BlackElo: 1891
Result: 0-1
ECO: D31
Opening: Semi-Slav Defense: Marshall Gambit, Main Line
Variant: Standard
TimeControl: 90 minutes with 30 seconds increment from move 1

1. d4 { [%eval 0.17] [%clk 1:22:33] } 1... d5 { [%eval 0.24] [%clk 1:30:55] } 2. c4 { [%eval 0.26] [%clk 1:22:59] } 2... e6 { [%eval 0.27] [%clk 1:31:21] } 3. Nc3 { [%eval 0.18] [%clk 1:23:24] } 3... c6 { [%eval 0.26] [%clk 1:31:46] } 4. e4 { [%eval 0.05] [%clk 1:23:51] } 4... dxe4 { [%eval 0.28] [%clk 1:32:10] } 5. Nxe4 { [%eval 0.11] [%clk 1:24:12] } 5... Bb4+ { [%eval 0.17] [%clk 1:32:23] } 6. Bd2 { [%eval 0.1] [%clk 1:24:02] } 6... Qxd4 { [%eval 0.21] [%clk 1:32:40] } 7. Bxb4 { [%eval 0.18] [%clk 1:24:54] } 7... Qxe4+ { [%eval 0.13] [%clk 1:33:05] } 8. Be2 { [%eval 0.33] [%clk 1:25:18] } 8... Na6 { [%eval 0.31] [%clk 1:30:36] } 9. Bd6 { [%eval 0.39] [%clk 1:25:22] } 9... Qxg2 { [%eval 0.22] [%clk 1:08:54] } 10. Qd2 { [%eval 0.2] [%clk 1:24:37] } 10... Qg6?? { [%eval 2.57] } { Blunder. e5 was best. } { [%clk 1:03:02] } 11. O-O-O { [%eval 2.44] [%clk 1:17:57] } 11... Bd7?! { [%eval 3.71] } { Inaccuracy. Nf6 was best. } { [%clk 0:58:25] } 12. Ba3?? { [%eval 0.16] } { Blunder. Nf3 was best. } { [%clk 1:05:09] } 12... O-O-O { [%eval 0.28] [%clk 0:57:00] } 13. Qe3?! { [%eval -0.81] } { Inaccuracy. Nf3 was best. } { [%clk 0:54:55] } 13... Kb8?? { [%eval 2.82] } { Blunder. c5 was best. } { [%clk 0:49:21] } 14. Bd6+?? { [%eval -0.44] } { Blunder. Nf3 was best. } { [%clk 0:55:07] } 14... Ka8 { [%eval -0.41] [%clk 0:49:33] } 15. Nf3 { [%eval -0.41] [%clk 0:49:46] } 15... f6 { [%eval -0.38] [%clk 0:49:38] } 16. Rhg1?! { [%eval -0.96] } { Inaccuracy. Qa3 was best. } { [%clk 0:48:08] } 16... Qf7 { [%eval -1.1] [%clk 0:49:46] } 17. Qa3 { [%eval -1.19] [%clk 0:44:51] } 17... Rc8? { [%eval 0.0] } { Mistake. e5 was best. } { [%clk 0:40:44] } 18. c5 { [%eval 0.0] [%clk 0:43:58] } 18... Nc7?? { [%eval 4.03] } { Blunder. e5 was best. } { [%clk 0:41:03] } 19. Nd2 { [%eval 3.75] [%clk 0:43:31] } 19... Nb5 { [%eval 3.68] [%clk 0:41:00] } 20. Bxb5?? { [%eval -2.21] } { Blunder. Qa5 was best. } { [%clk 0:42:37] } 20... cxb5 { [%eval -2.18] [%clk 0:41:29] } 21. Rg3 { [%eval -2.25] [%clk 0:40:43] } 21... a6 { [%eval -2.17] [%clk 0:39:59] } 22. Qa5 { [%eval -2.79] [%clk 0:37:39] } 22... Nh6 { [%eval -2.69] [%clk 0:40:09] } 23. Rd3 { [%eval -2.79] [%clk 0:25:51] } 23... Nf5 { [%eval -2.81] [%clk 0:39:05] } 24. b4 { [%eval -2.72] [%clk 0:25:49] } 24... Rc6?! { [%eval -1.74] } { Inaccuracy. e5 was best. } { [%clk 0:37:55] } 25. Ne4?! { [%eval -2.85] } { Inaccuracy. Nb3 was best. } { [%clk 0:26:04] } 25... Rhc8? { [%eval -1.02] } { Mistake. e5 was best. } { [%clk 0:36:59] } 26. Bf4? { [%eval -2.67] } { Mistake. a4 was best. } { [%clk 0:24:55] } 26... Be8? { [%eval -1.15] } { Mistake. e5 was best. } { [%clk 0:36:51] } 27. Nd6 { [%eval -1.42] [%clk 0:23:49] } 27... Nxd6 { [%eval -1.62] [%clk 0:36:42] } 28. Bxd6 { [%eval -1.55] [%clk 0:24:13] } 28... e5 { [%eval -1.37] [%clk 0:36:32] } 29. Kb2? { [%eval -3.11] } { Mistake. Rc3 was best. } { [%clk 0:23:37] } 29... Qc4 { [%eval -2.91] [%clk 0:31:15] } 30. R1d2?! { [%eval -4.58] } { Inaccuracy. Qa3 was best. } { [%clk 0:21:55] } 30... Bg6 { [%eval -4.43] [%clk 0:30:50] } 31. Rc3 { [%eval -4.45] [%clk 0:18:46] } 31... Qe4 { [%eval -3.97] [%clk 0:30:44] } 32. Rdc2?! { [%eval -6.25] } { Inaccuracy. Rcd3 was best. } { [%clk 0:10:57] } 32... Qe1 { [%eval -5.2] [%clk 0:29:11] } 33. a4 { [%eval -5.89] [%clk 0:10:00] } 33... Bxc2 { [%eval -5.6] [%clk 0:29:04] } 34. Rxc2 { [%eval -5.13] [%clk 0:09:37] } 34... Qd1 { [%eval -5.0] [%clk 0:26:08] } 35. axb5?! { [%eval -7.93] } { Inaccuracy. Be7 was best. } { [%clk 0:09:17] } 35... Rxd6 { [%eval -7.9] [%clk 0:26:30] } 36. c6 { [%eval -7.71] [%clk 0:09:41] } 36... Qd4+ { [%eval -7.97] [%clk 0:25:20] } 37. Kb1 { [%eval -7.87] [%clk 0:09:39] } 37... Qd3 { [%eval -7.63] [%clk 0:23:23] } 38. Qb6? { [%eval #-5] } { Checkmate is now unavoidable. f4 was best. } { [%clk 0:07:44] } 38... Qb3+ { [%eval #-4] [%clk 0:23:47] } 0-1