Event: Round 1: Piza Vera, Andres - Sanchez Barreto, Josue Efrain
Site: https://lichess.org/broadcast/fide-world-youth-u16-chess-olympiad-2025--matches-19/round-1/0GAlFyS6/m5vb4IoR
White: Piza Vera, Andres
WhiteElo: 1772
Black: Sanchez Barreto, Josue Efrain
BlackElo: 2012
Result: 1-0
ECO: D05
Opening: Queen's Pawn Game: Colle System, Traditional Colle
Variant: Standard
TimeControl: 45+10

1. d4 { [%eval 0.17] [%clk 0:45:18] } 1... Nf6 { [%eval 0.19] [%clk 0:44:05] } 2. Nf3 { [%eval 0.11] [%clk 0:44:22] } 2... d5 { [%eval 0.11] [%clk 0:44:03] } 3. e3 { [%eval 0.0] [%clk 0:42:29] } 3... e6 { [%eval 0.1] [%clk 0:43:38] } 4. Bd3 { [%eval 0.03] [%clk 0:42:19] } 4... c5 { [%eval 0.07] [%clk 0:42:59] } 5. c3 { [%eval -0.02] [%clk 0:42:16] } 5... Nbd7 { [%eval 0.0] [%clk 0:42:42] } 6. Nbd2 { [%eval 0.0] [%clk 0:40:43] } 6... b6 { [%eval -0.06] [%clk 0:40:37] } 7. Ne5 { [%eval -0.14] [%clk 0:40:40] } 7... Nxe5 { [%eval 0.0] [%clk 0:39:16] } 8. dxe5 { [%eval -0.04] [%clk 0:40:44] } 8... Nd7 { [%eval -0.02] [%clk 0:39:20] } 9. f4 { [%eval -0.12] [%clk 0:40:39] } 9... Qh4+ { [%eval 0.28] [%clk 0:39:15] } 10. g3 { [%eval 0.31] [%clk 0:40:40] } 10... Qd8 { [%eval 0.34] [%clk 0:39:17] } 11. Qe2?! { [%eval -0.33] } { Inaccuracy. c4 was best. } { [%clk 0:39:13] } 11... a6 { [%eval 0.18] [%clk 0:37:48] } 12. Nf3 { [%eval 0.08] [%clk 0:37:48] } 12... Bb7 { [%eval 0.1] [%clk 0:36:06] } 13. e4?! { [%eval -0.45] } { Inaccuracy. O-O was best. } { [%clk 0:37:43] } 13... c4 { [%eval -0.39] [%clk 0:35:30] } 14. Bc2 { [%eval -0.44] [%clk 0:37:34] } 14... Nc5 { [%eval -0.39] [%clk 0:35:28] } 15. exd5 { [%eval -0.46] [%clk 0:26:31] } 15... Qxd5 { [%eval -0.35] [%clk 0:30:18] } 16. O-O { [%eval -0.33] [%clk 0:26:32] } 16... Nd3 { [%eval -0.27] [%clk 0:28:53] } 17. Be3 { [%eval -0.26] [%clk 0:25:59] } 17... O-O-O { [%eval -0.22] [%clk 0:28:18] } 18. b3 { [%eval -0.3] [%clk 0:24:10] } 18... Qe4 { [%eval -0.21] [%clk 0:27:06] } 19. Rae1 { [%eval -0.25] [%clk 0:23:40] } 19... Qc6 { [%eval -0.26] [%clk 0:26:07] } 20. Rd1 { [%eval -0.24] [%clk 0:23:09] } 20... Qe4?! { [%eval 0.48] } { Inaccuracy. Bc5 was best. } { [%clk 0:22:02] } 21. Rd2 { [%eval 0.45] [%clk 0:20:36] } 21... b5 { [%eval 0.55] [%clk 0:17:03] } 22. b4?! { [%eval -0.21] } { Inaccuracy. bxc4 was best. } { [%clk 0:17:48] } 22... Rd7 { [%eval -0.1] [%clk 0:15:57] } 23. Bd4?? { [%eval -2.73] } { Blunder. a3 was best. } { [%clk 0:15:36] } 23... Bxb4?? { [%eval 0.0] } { Blunder. Qxe2 was best. } { [%clk 0:13:31] } 24. Bxd3 { [%eval 0.0] [%clk 0:14:25] } 24... cxd3 { [%eval 0.0] [%clk 0:13:18] } 25. Qxd3?! { [%eval -1.06] } { Inaccuracy. Qxe4 was best. } { [%clk 0:14:03] } 25... Ba5?! { [%eval -0.2] } { Inaccuracy. Ba3 was best. } { [%clk 0:07:33] } 26. Qxe4 { [%eval -0.12] [%clk 0:13:03] } 26... Bxe4 { [%eval -0.3] [%clk 0:07:41] } 27. Ng5? { [%eval -1.48] } { Mistake. Rb2 was best. } { [%clk 0:12:45] } 27... Bd5 { [%eval -1.19] [%clk 0:07:37] } 28. f5? { [%eval -2.51] } { Mistake. Re1 was best. } { [%clk 0:11:17] } 28... exf5 { [%eval -2.51] [%clk 0:06:24] } 29. Rxf5 { [%eval -3.02] [%clk 0:11:02] } 29... h6 { [%eval -2.83] [%clk 0:06:33] } 30. Nf3 { [%eval -2.89] [%clk 0:10:27] } 30... g6?? { [%eval 3.24] } { Blunder. Be6 was best. } { [%clk 0:06:42] } 31. e6 { [%eval 3.17] [%clk 0:09:10] } 31... fxe6?! { [%eval 4.07] } { Inaccuracy. Bxe6 was best. } { [%clk 0:06:50] } 32. Rxd5 { [%eval 3.94] [%clk 0:09:16] } 32... Rxd5 { [%eval 4.44] [%clk 0:01:54] } 33. Bxh8 { [%eval 4.39] [%clk 0:09:24] } 33... Rf5 { [%eval 4.47] [%clk 0:02:02] } 34. Nh4 { [%eval 3.98] [%clk 0:08:45] } 34... Rf8 { [%eval 4.74] [%clk 0:00:49] } 35. Nxg6 { [%eval 4.79] [%clk 0:07:22] } 35... Rf3?! { [%eval 6.68] } { Inaccuracy. Rf7 was best. } { [%clk 0:00:27] } 36. Kg2?! { [%eval 5.02] } { Inaccuracy. Ne7+ was best. } { [%clk 0:06:51] } 36... Re3 { [%eval 5.02] [%clk 0:00:20] } 37. Bd4 { [%eval 5.03] [%clk 0:06:32] } 37... Re1 { [%eval 4.96] [%clk 0:00:28] } 38. Rc2 { [%eval 4.63] [%clk 0:06:25] } 38... Kb7 { [%eval 4.71] [%clk 0:00:19] } 39. Ne5 { [%eval 4.71] [%clk 0:05:56] } 39... Ra1 { [%eval 4.84] [%clk 0:00:15] } 40. c4 { [%eval 4.85] [%clk 0:05:50] } 40... Rd1 { [%eval 4.77] [%clk 0:00:24] } 41. Bf2 { [%eval 4.64] [%clk 0:05:37] } 41... Bc7 { [%eval 4.32] [%clk 0:00:16] } 42. Nf7 { [%eval 4.35] [%clk 0:05:08] } 42... bxc4 { [%eval 5.25] [%clk 0:00:17] } 43. Nxh6 { [%eval 5.13] [%clk 0:04:57] } 43... c3 { [%eval 5.26] [%clk 0:00:17] } 44. Rxc3 { [%eval 5.16] [%clk 0:04:27] } 44... Rd2 { [%eval 5.04] [%clk 0:00:22] } 45. Rb3+ { [%eval 5.27] [%clk 0:04:36] } 45... Kc6 { [%eval 5.06] [%clk 0:00:32] } 46. a3 { [%eval 5.13] [%clk 0:04:36] } 46... a5 { [%eval 5.38] [%clk 0:00:22] } 47. Ng4 { [%eval 5.25] [%clk 0:04:36] } 47... Ra2 { [%eval 5.75] [%clk 0:00:22] } 48. h4 { [%eval 5.57] [%clk 0:03:58] } 48... Kd5 { [%eval 6.17] [%clk 0:00:19] } 49. h5 { [%eval 6.24] [%clk 0:03:56] } 49... a4 { [%eval 6.68] [%clk 0:00:22] } 50. Rb5+ { [%eval 6.62] [%clk 0:03:32] } 50... Kc6 { [%eval 6.28] [%clk 0:00:22] } 51. h6 { [%eval 6.59] [%clk 0:03:18] } 51... Kxb5 { [%eval 6.11] [%clk 0:00:19] } 52. h7 { [%eval 6.16] [%clk 0:03:27] } 52... Rxa3?! { [%eval 8.5] } { Inaccuracy. Rxf2+ was best. } { [%clk 0:00:17] } 53. h8=Q { [%eval 7.93] [%clk 0:03:34] } 53... Rb3? { [%eval #13] } { Checkmate is now unavoidable. Rd3 was best. } { [%clk 0:00:17] } 54. Qe8+ { [%eval #13] [%clk 0:03:40] } 54... Ka5 { [%eval 12.69] [%clk 0:00:17] } 55. Qxe6 { [%eval 12.12] [%clk 0:03:34] } 55... Rb5?! { [%eval #9] } { Checkmate is now unavoidable. Bb6 was best. } { [%clk 0:00:16] } 1-0