Event: Round 4: Perez Leyton, Jafet Yesid - Piza Vera, Andres
Site: https://lichess.org/broadcast/fide-world-youth-u16-chess-olympiad-2025--matches-19/round-4/k5SDHQho/qYBn8Hf1
White: Perez Leyton, Jafet Yesid
WhiteElo: 1701
Black: Piza Vera, Andres
BlackElo: 1772
Result: 1-0
ECO: B22
Opening: Sicilian Defense: Alapin Variation
Variant: Standard
TimeControl: 45+10

1. e4 { [%eval 0.18] [%clk 0:45:12] } 1... c5 { [%eval 0.24] [%clk 0:45:17] } 2. c3 { [%eval 0.0] [%clk 0:45:08] } 2... g6 { [%eval 0.28] [%clk 0:45:09] } 3. d4 { [%eval 0.31] [%clk 0:45:10] } 3... cxd4 { [%eval 0.54] [%clk 0:45:14] } 4. cxd4 { [%eval 0.57] [%clk 0:45:15] } 4... d5 { [%eval 0.47] [%clk 0:45:15] } 5. e5 { [%eval 0.46] [%clk 0:44:57] } 5... Bg7 { [%eval 0.55] [%clk 0:45:19] } 6. Nc3 { [%eval 0.5] [%clk 0:44:38] } 6... Nc6 { [%eval 0.67] [%clk 0:45:17] } 7. Bb5 { [%eval 0.6] [%clk 0:43:41] } 7... Nh6 { [%eval 0.71] [%clk 0:44:48] } 8. Qa4?! { [%eval 0.06] } { Inaccuracy. h3 was best. } { [%clk 0:39:16] } 8... Qd7?! { [%eval 1.1] } { Inaccuracy. O-O was best. } { [%clk 0:43:13] } 9. Bf4 { [%eval 0.95] [%clk 0:26:38] } 9... O-O { [%eval 0.94] [%clk 0:42:18] } 10. Nf3 { [%eval 0.97] [%clk 0:24:15] } 10... Rd8 { [%eval 1.54] [%clk 0:39:01] } 11. O-O { [%eval 1.56] [%clk 0:23:38] } 11... Qc7 { [%eval 1.55] [%clk 0:33:44] } 12. Rac1 { [%eval 1.65] [%clk 0:21:37] } 12... Qb6 { [%eval 2.16] [%clk 0:32:46] } 13. Bxc6 { [%eval 1.58] [%clk 0:17:15] } 13... bxc6 { [%eval 1.77] [%clk 0:32:06] } 14. b4?? { [%eval -0.61] } { Blunder. h3 was best. } { [%clk 0:17:24] } 14... Ba6?? { [%eval 1.1] } { Blunder. Bg4 was best. } { [%clk 0:31:35] } 15. Rfe1 { [%eval 1.05] [%clk 0:16:39] } 15... e6?! { [%eval 1.75] } { Inaccuracy. Nf5 was best. } { [%clk 0:31:17] } 16. Qb3?! { [%eval 0.94] } { Inaccuracy. Qd1 was best. } { [%clk 0:15:39] } 16... Bc4 { [%eval 1.01] [%clk 0:31:00] } 17. Qb2?! { [%eval 0.39] } { Inaccuracy. Qd1 was best. } { [%clk 0:15:37] } 17... a5 { [%eval 0.51] [%clk 0:30:53] } 18. Bg5 { [%eval 0.0] [%clk 0:12:37] } 18... Rd7? { [%eval 1.28] } { Mistake. Re8 was best. } { [%clk 0:29:11] } 19. Rb1? { [%eval -0.18] } { Mistake. Na4 was best. } { [%clk 0:12:30] } 19... Nf5?? { [%eval 2.28] } { Blunder. axb4 was best. } { [%clk 0:25:34] } 20. Na4 { [%eval 2.34] [%clk 0:10:19] } 20... Qb5 { [%eval 2.44] [%clk 0:24:32] } 21. Nc5 { [%eval 2.37] [%clk 0:10:15] } 21... Rda7 { [%eval 2.41] [%clk 0:24:17] } 22. a4 { [%eval 2.34] [%clk 0:09:50] } 22... Qxb4?! { [%eval 3.43] } { Inaccuracy. Qb6 was best. } { [%clk 0:24:03] } 23. Qa1 { [%eval 3.44] [%clk 0:08:55] } 23... Bf8 { [%eval 3.23] [%clk 0:20:20] } 24. Rxb4 { [%eval 3.13] [%clk 0:07:17] } 24... axb4 { [%eval 2.99] [%clk 0:20:28] } 25. Qc1?! { [%eval 2.1] } { Inaccuracy. g4 was best. } { [%clk 0:07:26] } 25... h6 { [%eval 2.58] [%clk 0:19:24] } 26. Bf6 { [%eval 2.31] [%clk 0:06:46] } 26... Kh7 { [%eval 2.47] [%clk 0:19:07] } 27. g4 { [%eval 2.09] [%clk 0:06:44] } 27... Nxd4 { [%eval 2.06] [%clk 0:18:28] } 28. Nxd4 { [%eval 2.18] [%clk 0:06:53] } 28... Bxc5 { [%eval 2.17] [%clk 0:18:36] } 29. Nf3 { [%eval 1.96] [%clk 0:07:02] } 29... Rxa4?! { [%eval 2.67] } { Inaccuracy. Bf8 was best. } { [%clk 0:18:39] } 30. Ng5+ { [%eval 2.85] [%clk 0:07:09] } 30... Kg8 { [%eval 2.84] [%clk 0:17:15] } 31. Nxe6 { [%eval 2.61] [%clk 0:01:28] } 31... fxe6 { [%eval 2.99] [%clk 0:15:34] } 32. Qxh6 { [%eval 2.92] [%clk 0:01:37] } 32... Kf7 { [%eval 2.92] [%clk 0:12:52] } 33. Qh7+ { [%eval 2.65] [%clk 0:01:14] } 33... Ke8 { [%eval 2.79] [%clk 0:12:58] } 34. Qxg6+ { [%eval 2.99] [%clk 0:01:17] } 34... Kd7 { [%eval 2.89] [%clk 0:13:07] } 35. Qf7+ { [%eval 2.96] [%clk 0:01:26] } 35... Kc8 { [%eval 2.94] [%clk 0:13:15] } 36. Qxe6+ { [%eval 2.66] [%clk 0:01:33] } 36... Kb7?? { [%eval 5.72] } { Blunder. Kc7 was best. } { [%clk 0:13:23] } 37. Qd7+ { [%eval 5.62] [%clk 0:01:42] } 37... Kb6 { [%eval 5.46] [%clk 0:13:32] } 38. Bd8+ { [%eval 5.45] [%clk 0:01:46] } 38... Rxd8 { [%eval 5.36] [%clk 0:13:08] } 39. Qxd8+ { [%eval 5.01] [%clk 0:01:55] } 39... Kb5 { [%eval 4.95] [%clk 0:13:17] } 40. e6 { [%eval 4.79] [%clk 0:02:00] } 40... Ra2 { [%eval 4.64] [%clk 0:13:26] } 41. Qf6 { [%eval 4.46] [%clk 0:01:04] } 41... b3?! { [%eval 6.15] } { Inaccuracy. Ka4 was best. } { [%clk 0:05:23] } 42. e7 { [%eval 6.06] [%clk 0:01:04] } 42... Bxe7 { [%eval 5.88] [%clk 0:05:30] } 43. Rxe7 { [%eval 5.57] [%clk 0:01:13] } 43... b2?? { [%eval #4] } { Checkmate is now unavoidable. Ra6 was best. } { [%clk 0:05:21] } 44. Rb7+ { [%eval #3] [%clk 0:01:21] } 44... Kc5 { [%eval #2] [%clk 0:05:28] } 45. Qe7+ { [%eval #1] [%clk 0:01:28] } 45... Kd4 { [%eval #1] [%clk 0:05:36] } 46. Qe3# { [%clk 0:01:38] } 1-0