Event: Nacional Sub 20 Absoluto 2025
Site: Polideportivo Estadio Nacional, Chile
Date: 2025-01-21
White: Rivadeneira Maturana, Benjamin
WhiteElo: 1854
Black: Rossel Grandon, Cristobal
BlackElo: 1722
Result: 1-0
ECO: C20
Opening: English Opening: The Whale
Variant: Standard
TimeControl: 90 minutes with 30 seconds increment from move 1

1. e4 { [%eval 0.18] [%clk 1:30:57] } 1... e5 { [%eval 0.21] [%clk 1:30:50] } 2. c4 { [%eval -0.23] [%clk 1:30:43] } 2... Nf6 { [%eval -0.06] [%clk 1:30:02] } 3. Nc3 { [%eval -0.1] [%clk 1:30:57] } 3... Nc6 { [%eval 0.1] [%clk 1:29:41] } 4. g3 { [%eval -0.09] [%clk 1:30:35] } 4... Bc5 { [%eval -0.17] [%clk 1:27:55] } 5. Bg2 { [%eval -0.14] [%clk 1:28:06] } 5... d6 { [%eval -0.11] [%clk 1:25:56] } 6. Na4?! { [%eval -0.67] } { Inaccuracy. h3 was best. } { [%clk 1:27:28] } 6... Bd4 { [%eval -0.37] [%clk 1:22:26] } 7. Ne2 { [%eval -0.49] [%clk 1:26:44] } 7... Bg4 { [%eval -0.02] [%clk 1:22:01] } 8. f3 { [%eval -0.11] [%clk 1:26:46] } 8... Be6 { [%eval 0.01] [%clk 1:21:59] } 9. d3 { [%eval 0.03] [%clk 1:26:22] } 9... Qd7 { [%eval 0.02] [%clk 1:15:51] } 10. Nxd4 { [%eval 0.0] [%clk 1:25:27] } 10... Nxd4 { [%eval 0.23] [%clk 1:16:08] } 11. Be3 { [%eval 0.18] [%clk 1:24:44] } 11... c5 { [%eval 0.34] [%clk 1:11:55] } 12. Nc3 { [%eval 0.42] [%clk 1:23:39] } 12... Bh3 { [%eval 0.41] [%clk 1:07:02] } 13. O-O { [%eval 0.3] [%clk 1:23:36] } 13... Bxg2 { [%eval 0.32] [%clk 1:06:34] } 14. Kxg2 { [%eval 0.35] [%clk 1:23:57] } 14... O-O { [%eval 0.29] [%clk 1:03:17] } 15. Bg5 { [%eval 0.0] [%clk 1:21:50] } 15... Ne8 { [%eval 0.01] [%clk 1:00:21] } 16. Nd5 { [%eval -0.27] [%clk 1:21:22] } 16... f6 { [%eval 0.15] [%clk 0:59:37] } 17. Be3 { [%eval 0.13] [%clk 1:21:32] } 17... Nc7 { [%eval 0.15] [%clk 0:59:10] } 18. Nxc7 { [%eval 0.17] [%clk 1:21:35] } 18... Qxc7 { [%eval 0.16] [%clk 0:59:35] } 19. Bxd4 { [%eval 0.23] [%clk 1:21:43] } 19... cxd4 { [%eval 0.19] [%clk 0:57:35] } 20. b4 { [%eval 0.19] [%clk 1:21:34] } 20... a5 { [%eval 0.11] [%clk 0:51:15] } 21. Qb3 { [%eval 0.02] [%clk 1:20:06] } 21... axb4 { [%eval 0.0] [%clk 0:47:48] } 22. Qxb4 { [%eval 0.0] [%clk 1:19:59] } 22... Ra7 { [%eval 0.05] [%clk 0:43:29] } 23. Rfb1 { [%eval 0.0] [%clk 1:19:44] } 23... Rfa8 { [%eval 0.01] [%clk 0:40:37] } 24. a4 { [%eval 0.0] [%clk 1:19:54] } 24... Qc5 { [%eval 0.0] [%clk 0:37:56] } 25. Kf2 { [%eval 0.0] [%clk 1:18:55] } 25... h6 { [%eval 0.0] [%clk 0:36:16] } 26. Ke2 { [%eval -0.16] [%clk 1:17:45] } 26... Qc8 { [%eval -0.12] [%clk 0:23:37] } 27. g4 { [%eval -0.38] [%clk 1:15:59] } 27... Qc5 { [%eval 0.0] [%clk 0:22:09] } 28. Kd2 { [%eval -0.16] [%clk 1:14:55] } 28... Qc6 { [%eval 0.0] [%clk 0:17:03] } 29. a5 { [%eval 0.0] [%clk 1:14:23] } 29... Qc5 { [%eval 0.0] [%clk 0:14:19] } 30. Qxc5 { [%eval 0.0] [%clk 1:13:20] } 30... dxc5 { [%eval 0.0] [%clk 0:14:42] } 31. Rb5 { [%eval 0.0] [%clk 1:13:02] } 31... Rc8?! { [%eval 0.8] } { Inaccuracy. b6 was best. } { [%clk 0:10:54] } 32. Kc2 { [%eval 0.31] [%clk 1:12:34] } 32... Kf7 { [%eval 0.54] [%clk 0:10:09] } 33. Kb3 { [%eval 0.27] [%clk 1:12:46] } 33... Rc6 { [%eval 0.46] [%clk 0:06:52] } 34. Ka4 { [%eval 0.51] [%clk 1:11:27] } 34... b6 { [%eval 0.84] [%clk 0:03:13] } 35. Kb3?! { [%eval 0.25] } { Inaccuracy. Rab1 was best. } { [%clk 1:10:58] } 35... bxa5?! { [%eval 0.83] } { Inaccuracy. Kg6 was best. } { [%clk 0:02:24] } 36. Raxa5?! { [%eval 0.01] } { Inaccuracy. h4 was best. } { [%clk 1:11:20] } 36... Rac7? { [%eval 1.66] } { Mistake. Rxa5 was best. } { [%clk 0:02:20] } 37. Ra8? { [%eval 0.23] } { Mistake. Ka4 was best. } { [%clk 1:10:55] } 37... Kg6 { [%eval 0.31] [%clk 0:02:02] } 38. h4 { [%eval 0.22] [%clk 1:09:53] } 38... Kf7?? { [%eval 2.01] } { Blunder. Rc8 was best. } { [%clk 0:01:45] } 39. Rab8?? { [%eval 0.0] } { Blunder. Ka4 was best. } { [%clk 1:09:23] } 39... Ke7? { [%eval 1.32] } { Mistake. Ra6 was best. } { [%clk 0:00:47] } 40. R8b7? { [%eval 0.0] } { Mistake. Rg8 was best. } { [%clk 1:09:26] } 40... Kd6 { [%eval 0.0] [%clk 0:00:47] } 41. Rxc7 { [%eval 0.0] [%clk 1:09:30] } 41... Rxc7 { [%eval 0.0] [%clk 0:00:49] } 42. Ka4 { [%eval 0.0] [%clk 1:09:30] } 42... Kc6 { [%eval 0.0] [%clk 0:00:42] } 43. Ra5 { [%eval 0.0] [%clk 1:05:58] } 43... Kb6 { [%eval 0.0] [%clk 0:00:39] } 44. Ra8 { [%eval 0.0] [%clk 1:04:51] } 44... Kb7 { [%eval 0.0] [%clk 0:00:35] } 45. Re8 { [%eval 0.05] [%clk 1:04:39] } 45... Kb6?? { [%eval 4.02] } { Blunder. Kc6 was best. } { [%clk 0:00:34] } 46. Re6+ { [%eval 3.66] [%clk 1:05:00] } 46... Rc6? { [%eval 7.05] } { Mistake. Kb7 was best. } { [%clk 0:00:34] } 47. Rxc6+ { [%eval 7.49] [%clk 1:05:02] } 47... Kxc6 { [%eval 7.14] [%clk 0:01:03] } 48. Ka5 { [%eval 7.87] [%clk 1:05:27] } 48... g6 { [%eval 7.77] [%clk 0:00:51] } 49. Ka6 { [%eval 7.5] [%clk 1:05:23] } 49... h5 { [%eval 10.42] [%clk 0:00:36] } 50. gxh5 { [%eval 10.33] [%clk 1:05:47] } 50... gxh5 { [%eval #22] [%clk 0:00:49] } 51. Ka5 { [%eval #20] [%clk 1:06:12] } 51... Kd7 { [%eval #22] [%clk 0:00:34] } 52. Kb5 { [%eval #21] [%clk 1:06:32] } 52... Kd6 { [%eval #28] [%clk 0:00:52] } 53. Kb6 { [%eval 11.18] [%clk 1:06:54] } 53... Ke6?! { [%eval #15] } { Checkmate is now unavoidable. f5 was best. } { [%clk 0:00:40] } 54. Kxc5 { [%eval #14] [%clk 1:07:11] } 54... Kd7 { [%eval #16] [%clk 0:00:44] } 55. Kd5 { [%eval #18] [%clk 1:07:30] } 1-0