Event: Round 3: Tobar B, Carlos Andres - Alzate Arango, John Ubaldo
Date: 2024-05-30
White: Tobar B, Carlos Andres
WhiteTitle: CM
WhiteElo: 1963
Black: Alzate Arango, John Ubaldo
BlackElo: 1723
Result: 1-0
ECO: A04
Opening: Zukertort Opening: Slav Invitation
Variant: Standard

1. Nf3 { [%eval 0.14] [%clk 0:04:02] } 1... c6 { [%eval 0.29] [%clk 0:04:03] } 2. e4 { [%eval 0.27] [%clk 0:04:01] } 2... d5 { [%eval 0.27] [%clk 0:04:04] } 3. exd5 { [%eval 0.13] [%clk 0:04:02] } 3... cxd5 { [%eval 0.12] [%clk 0:04:05] } 4. d4 { [%eval 0.1] [%clk 0:04:03] } 4... Bf5 { [%eval 0.28] [%clk 0:04:04] } 5. Bd3 { [%eval -0.04] [%clk 0:04:04] } 5... Bxd3 { [%eval -0.05] } 6. Qxd3 { [%eval -0.07] [%clk 0:04:05] } 6... Nf6 { [%eval 0.0] [%clk 0:04:05] } 7. O-O { [%eval -0.11] [%clk 0:04:04] } 7... e6 { [%eval -0.1] [%clk 0:04:07] } 8. Re1 { [%eval -0.01] [%clk 0:04:04] } 8... Be7 { [%eval -0.03] [%clk 0:04:08] } 9. Bf4 { [%eval -0.05] [%clk 0:04:02] } 9... O-O { [%eval -0.01] [%clk 0:04:04] } 10. Nbd2 { [%eval -0.1] [%clk 0:03:59] } 10... Nc6 { [%eval -0.07] [%clk 0:04:06] } 11. c3 { [%eval -0.02] [%clk 0:03:58] } 11... Rc8 { [%eval 0.07] [%clk 0:04:07] } 12. Ne5 { [%eval 0.0] [%clk 0:03:57] } 12... h6 { [%eval 0.15] [%clk 0:04:01] } 13. Qh3 { [%eval 0.15] [%clk 0:03:50] } 13... b5 { [%eval 0.13] [%clk 0:03:46] } 14. Re3 { [%eval 0.19] [%clk 0:03:42] } 14... Nh7 { [%eval 0.19] [%clk 0:03:28] } 15. Rg3 { [%eval 0.0] [%clk 0:03:17] } 15... Nxe5 { [%eval 0.5] [%clk 0:03:23] } 16. Bxe5 { [%eval 0.59] [%clk 0:02:49] } 16... Ng5 { [%eval 0.58] [%clk 0:03:22] } 17. Qg4 { [%eval 0.59] [%clk 0:02:49] } 17... f5 { [%eval 0.62] [%clk 0:03:11] } 18. Qh5 { [%eval 0.75] [%clk 0:02:25] } 18... Qe8 { [%eval 0.98] [%clk 0:03:11] } 19. Qxe8 { [%eval 1.01] [%clk 0:02:18] } 19... Rcxe8?? { [%eval 4.19] } { Blunder. Rfxe8 was best. } { [%clk 0:03:09] } 20. f4 { [%eval 4.23] [%clk 0:02:14] } 20... Ne4?! { [%eval 6.72] } { Inaccuracy. b4 was best. } { [%clk 0:03:10] } 21. Rxg7+ { [%eval 6.63] [%clk 0:02:14] } 21... Kh8 { [%eval 6.62] [%clk 0:03:08] } 22. Nxe4 { [%eval 6.34] [%clk 0:02:08] } 22... dxe4 { [%eval 7.58] [%clk 0:02:43] } 23. Rxe7+ { [%eval 7.46] [%clk 0:02:09] } 23... Kg8 { [%eval 7.38] [%clk 0:02:41] } 24. Rg7+ { [%eval 7.26] [%clk 0:02:07] } 24... Kh8 { [%eval 7.71] [%clk 0:02:40] } 25. Rxa7+ { [%eval 7.45] [%clk 0:02:08] } 25... Kg8 { [%eval 7.6] [%clk 0:02:40] } 26. a4 { [%eval 6.65] [%clk 0:02:03] } 26... bxa4?? { [%eval #14] } { Checkmate is now unavoidable. Rf7 was best. } { [%clk 0:02:16] } 27. R1xa4?? { [%eval 5.68] } { Lost forced checkmate sequence. Rg7+ was best. } { [%clk 0:02:02] } 27... Rc8?? { [%eval #5] } { Checkmate is now unavoidable. Rf7 was best. } { [%clk 0:02:09] } 28. Rg7+ { [%eval #4] [%clk 0:02:02] } 28... Kh8 { [%eval #4] [%clk 0:02:10] } 29. Raa7 { [%eval #3] [%clk 0:02:02] } 1-0