Event: Biel Chess Festival BTZ
Site: Biel, Switzerland
Date: 2024-07-21
White: Mendonca, Leon Luke
WhiteTitle: GM
WhiteElo: 2468
Black: Song, Ethan
Result: 1-0
ECO: A46
Opening: Indian Defense: London System
Variant: Standard
TimeControl: 3' + 2''/mv from move 1

1. d4 { [%eval 0.16] [%clk 0:03:04] } 1... Nf6 { [%eval 0.17] [%clk 0:03:03] } 2. Nf3 { [%eval 0.23] [%clk 0:03:05] } 2... e6 { [%eval 0.14] [%clk 0:03:04] } 3. Bf4 { [%eval 0.0] [%clk 0:03:07] } 3... d5 { [%eval 0.16] [%clk 0:03:06] } 4. e3 { [%eval 0.08] [%clk 0:03:08] } 4... Bd6 { [%eval 0.1] [%clk 0:03:07] } 5. Bg3 { [%eval 0.11] [%clk 0:03:09] } 5... O-O { [%eval 0.1] [%clk 0:03:04] } 6. c4 { [%eval 0.07] [%clk 0:03:10] } 6... dxc4 { [%eval 0.24] [%clk 0:03:03] } 7. Bxc4 { [%eval 0.13] [%clk 0:03:11] } 7... a6 { [%eval 0.41] [%clk 0:03:04] } 8. O-O { [%eval 0.21] [%clk 0:03:07] } 8... b5 { [%eval 0.55] [%clk 0:03:06] } 9. Be2 { [%eval 0.48] [%clk 0:03:06] } 9... Bb7 { [%eval 0.45] [%clk 0:03:07] } 10. a4 { [%eval 0.43] [%clk 0:03:07] } 10... b4?! { [%eval 1.22] } { Inaccuracy. Nbd7 was best. } { [%clk 0:03:02] } 11. Nbd2 { [%eval 1.12] [%clk 0:03:08] } 11... Nbd7 { [%eval 1.37] [%clk 0:03:01] } 12. Rc1 { [%eval 1.37] [%clk 0:03:09] } 12... a5 { [%eval 1.43] [%clk 0:02:59] } 13. Nb3 { [%eval 1.13] [%clk 0:03:06] } 13... Ne4 { [%eval 1.12] [%clk 0:02:57] } 14. Nfd2 { [%eval 0.98] [%clk 0:03:06] } 14... Ndf6 { [%eval 1.4] [%clk 0:02:51] } 15. Bf3?! { [%eval 0.83] } { Inaccuracy. Bh4 was best. } { [%clk 0:02:58] } 15... Nxd2 { [%eval 1.03] [%clk 0:02:39] } 16. Nxd2 { [%eval 1.02] [%clk 0:02:56] } 16... Bxf3 { [%eval 1.08] [%clk 0:02:37] } 17. Qxf3 { [%eval 0.97] [%clk 0:02:56] } 17... Qd7 { [%eval 1.21] [%clk 0:02:31] } 18. Qc6 { [%eval 1.17] [%clk 0:02:57] } 18... Qe7 { [%eval 1.62] [%clk 0:02:30] } 19. Ne4?! { [%eval 0.77] } { Inaccuracy. Nc4 was best. } { [%clk 0:02:41] } 19... Nxe4 { [%eval 0.83] [%clk 0:02:29] } 20. Qxe4 { [%eval 0.89] [%clk 0:02:42] } 20... Ra6? { [%eval 2.69] } { Mistake. b3 was best. } { [%clk 0:02:09] } 21. Rc4?! { [%eval 1.45] } { Inaccuracy. Qb7 was best. } { [%clk 0:02:38] } 21... Qd7 { [%eval 1.67] [%clk 0:01:53] } 22. b3 { [%eval 1.58] [%clk 0:02:38] } 22... Rc8 { [%eval 1.91] [%clk 0:01:49] } 23. Rfc1 { [%eval 1.88] [%clk 0:02:39] } 23... Rb6? { [%eval 3.48] } { Mistake. Raa8 was best. } { [%clk 0:01:40] } 24. Bxd6 { [%eval 3.42] [%clk 0:02:34] } 24... Qxd6 { [%eval 3.75] [%clk 0:01:41] } 25. Rc5 { [%eval 3.66] [%clk 0:02:35] } 25... f5 { [%eval 3.73] [%clk 0:01:26] } 26. Qe5 { [%eval 3.65] [%clk 0:02:12] } 26... Qxe5 { [%eval 3.56] [%clk 0:01:11] } 27. Rxe5 { [%eval 3.57] [%clk 0:02:13] } 27... Kf7 { [%eval 3.65] [%clk 0:01:09] } 28. Rxa5 { [%eval 3.69] [%clk 0:02:13] } 28... c6 { [%eval 4.29] [%clk 0:01:08] } 29. Ra7+ { [%eval 4.27] [%clk 0:02:10] } 29... Kf6 { [%eval 4.2] [%clk 0:01:08] } 30. Kf1 { [%eval 4.27] [%clk 0:02:11] } 30... h5 { [%eval 4.37] [%clk 0:01:09] } 31. h4 { [%eval 4.33] [%clk 0:02:12] } 31... Rd8 { [%eval 5.27] [%clk 0:01:06] } 32. Rc5 { [%eval 4.42] [%clk 0:02:07] } 32... Rd6 { [%eval 4.81] [%clk 0:01:03] } 33. g3 { [%eval 4.57] [%clk 0:02:04] } 33... g6 { [%eval 5.24] [%clk 0:00:58] } 34. Ke2 { [%eval 5.22] [%clk 0:02:05] } 34... Rd5 { [%eval 5.25] [%clk 0:00:54] } 35. Kd3 { [%eval 5.25] [%clk 0:02:05] } 35... e5 { [%eval 5.36] [%clk 0:00:50] } 36. Rxd5 { [%eval 5.4] [%clk 0:01:50] } 36... cxd5 { [%eval 5.35] [%clk 0:00:50] } 37. dxe5+ { [%eval 5.32] [%clk 0:01:51] } 37... Kxe5 { [%eval 5.41] [%clk 0:00:51] } 38. Re7+ { [%eval 5.26] [%clk 0:01:52] } 38... Kf6 { [%eval 5.37] [%clk 0:00:44] } 39. Rc7 { [%eval 5.34] [%clk 0:01:53] } 39... Ke5 { [%eval 5.43] [%clk 0:00:45] } 40. Rc5 { [%eval 5.36] [%clk 0:01:54] } 40... Kd6 { [%eval 5.73] [%clk 0:00:43] } 41. Kd4 { [%eval 5.65] [%clk 0:01:55] } 41... Ke6 { [%eval 5.58] [%clk 0:00:43] } 42. Rb5 { [%eval 5.59] [%clk 0:01:41] } 42... Rc6 { [%eval 5.8] [%clk 0:00:42] } 43. Rxb4 { [%eval 5.73] [%clk 0:01:42] } 43... Rc2 { [%eval 5.9] [%clk 0:00:42] } 44. Rb6+ { [%eval 5.71] [%clk 0:01:44] } 44... Kf7 { [%eval 6.0] [%clk 0:00:43] } 45. f4 { [%eval 6.18] [%clk 0:01:40] } 45... Rd2+ { [%eval 5.99] [%clk 0:00:43] } 46. Ke5 { [%eval 5.97] [%clk 0:01:40] } 46... Rd3 { [%eval 6.82] [%clk 0:00:44] } 47. Rb7+ { [%eval 6.8] [%clk 0:01:41] } 47... Kg8 { [%eval 7.65] [%clk 0:00:44] } 48. a5 { [%eval 7.44] [%clk 0:01:42] } 48... Rxe3+ { [%eval 7.44] [%clk 0:00:44] } 49. Kxd5 { [%eval 7.0] [%clk 0:01:43] } 49... Rxg3?? { [%eval #16] } { Checkmate is now unavoidable. Rd3+ was best. } { [%clk 0:00:44] } 50. a6 { [%eval #14] [%clk 0:01:45] } 50... Rd3+?? { [%eval #13] } { Checkmate is now unavoidable. Rg1 was best. } { [%clk 0:00:45] } 51. Ke6 { [%eval #13] [%clk 0:01:44] } 51... g5 { [%eval #7] [%clk 0:00:43] } 52. a7 { [%eval #6] [%clk 0:01:44] } 1-0