Event: Round 5: Mafra, Kaiser Luiz - Sierra Vallina, Lionel
Date: 2025-04-17
White: Mafra, Kaiser Luiz
WhiteTitle: CM
WhiteElo: 2098
Black: Sierra Vallina, Lionel
BlackTitle: FM
BlackElo: 2342
Result: 0-1
ECO: B23
Opening: Sicilian Defense: Closed, Traditional
Variant: Standard
TimeControl: 90+30

1. e4 { [%eval 0.18] [%clk 1:30:56] } 1... c5 { [%eval 0.25] [%clk 1:30:37] } 2. Nc3 { [%eval 0.26] [%clk 1:31:20] } 2... Nc6 { [%eval 0.16] [%clk 1:31:02] } 3. Nf3 { [%eval 0.2] [%clk 1:31:45] } 3... d6 { [%eval 0.41] [%clk 1:28:36] } 4. b3 { [%eval -0.11] [%clk 1:31:10] } 4... Nf6 { [%eval 0.0] [%clk 1:23:29] } 5. Bb2 { [%eval -0.32] [%clk 1:31:35] } 5... e6 { [%eval 0.21] [%clk 1:23:22] } 6. g3 { [%eval -0.28] [%clk 1:30:53] } 6... d5 { [%eval -0.07] [%clk 1:17:50] } 7. d3?! { [%eval -0.7] } { Inaccuracy. Bb5 was best. } { [%clk 1:29:21] } 7... d4 { [%eval -0.64] [%clk 1:11:25] } 8. Ne2 { [%eval -0.71] [%clk 1:29:12] } 8... e5 { [%eval -0.7] [%clk 1:11:16] } 9. Bg2 { [%eval -0.69] [%clk 1:29:35] } 9... Be7 { [%eval -0.64] [%clk 1:07:45] } 10. O-O { [%eval -0.64] [%clk 1:28:50] } 10... O-O { [%eval -0.37] [%clk 1:07:35] } 11. h3 { [%eval -0.6] [%clk 1:28:21] } 11... Ne8 { [%eval -0.53] [%clk 1:02:44] } 12. Nh2 { [%eval -0.62] [%clk 1:28:33] } 12... Be6 { [%eval -0.33] [%clk 1:02:55] } 13. f4 { [%eval -0.43] [%clk 1:28:54] } 13... f6 { [%eval -0.38] [%clk 1:03:22] } 14. f5?! { [%eval -0.99] } { Inaccuracy. Bc1 was best. } { [%clk 1:29:07] } 14... Bf7 { [%eval -1.03] [%clk 1:03:45] } 15. g4 { [%eval -1.09] [%clk 1:29:30] } 15... b5 { [%eval -1.11] [%clk 0:56:29] } 16. h4 { [%eval -1.28] [%clk 1:28:17] } 16... c4 { [%eval -0.89] [%clk 0:55:49] } 17. Ng3 { [%eval -1.33] [%clk 1:28:22] } 17... Rc8?! { [%eval -0.56] } { Inaccuracy. a5 was best. } { [%clk 0:51:49] } 18. Nf3 { [%eval -0.68] [%clk 1:26:45] } 18... cxd3 { [%eval -0.73] [%clk 0:47:42] } 19. cxd3 { [%eval -0.6] [%clk 1:25:20] } 19... Nb4 { [%eval -0.67] [%clk 0:41:15] } 20. Rf2 { [%eval -0.76] [%clk 1:25:27] } 20... a5 { [%eval -0.5] [%clk 0:41:40] } 21. g5? { [%eval -1.94] } { Mistake. a3 was best. } { [%clk 1:21:02] } 21... fxg5 { [%eval -1.84] [%clk 0:33:09] } 22. hxg5 { [%eval -2.05] [%clk 1:17:25] } 22... Bxg5 { [%eval -1.85] [%clk 0:32:47] } 23. Nxg5?! { [%eval -2.53] } { Inaccuracy. a3 was best. } { [%clk 1:17:04] } 23... Qxg5 { [%eval -2.37] [%clk 0:33:12] } 24. Kh2?? { [%eval -4.85] } { Blunder. a3 was best. } { [%clk 1:15:43] } 24... Nf6?! { [%eval -3.68] } { Inaccuracy. Qh4+ was best. } { [%clk 0:32:53] } 25. Bh3?! { [%eval -4.73] } { Inaccuracy. Bf3 was best. } { [%clk 1:15:01] } 25... Qe3 { [%eval -3.89] [%clk 0:31:08] } 26. Rf3 { [%eval -4.33] [%clk 1:09:09] } 26... Rc2+ { [%eval -4.23] [%clk 0:31:09] } 27. Qxc2 { [%eval -4.24] [%clk 1:08:04] } 27... Qxf3 { [%eval -4.28] [%clk 0:30:59] } 0-1