[Event "Chess Tournament 1st 26 Arena"] [Site "https://lichess.org/YJphfVqp"] [Date "2026.01.31"] [Round "-"] [White "DERECK2018i"] [Black "TomasMontenegro"] [Result "1-0"] [GameId "YJphfVqp"] [UTCDate "2026.01.31"] [UTCTime "22:55:39"] [WhiteElo "556"] [BlackElo "581"] [WhiteRatingDiff "+84"] [BlackRatingDiff "-118"] [Variant "Standard"] [TimeControl "240+0"] [ECO "C20"] [Opening "Portuguese Opening"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 { [%eval 0.18] } 1... e5 { [%eval 0.22] } 2. Bb5 { [%eval -0.21] } { C20 Portuguese Opening } 2... c6 { [%eval -0.2] } 3. Ba4 { [%eval -0.26] } 3... a5 { [%eval -0.12] } 4. Nf3?! { (-0.12 → -1.02) Inaccuracy. c3 was best. } { [%eval -1.02] } (4. c3 d5 5. exd5 Qxd5 6. Nf3 Bg4 7. Qe2 Be7 8. d3 Bxf3) 4... Na6? { (-1.02 → 0.55) Mistake. d5 was best. } { [%eval 0.55] } (4... d5 5. Nxe5 b5 6. Nxc6 Nxc6 7. Bxb5 Bd7 8. exd5 Qe7+ 9. Kf1) 5. O-O { [%eval 0.27] } 5... Nb4? { (0.27 → 1.47) Mistake. Nc5 was best. } { [%eval 1.47] } (5... Nc5 6. c4 d6 7. d4 Nxa4 8. Qxa4 Bg4 9. d5 Qd7 10. Nc3 Bxf3 11. gxf3) 6. c3?! { (1.47 → 0.35) Inaccuracy. a3 was best. } { [%eval 0.35] } (6. a3 Na6 7. Nxe5 Nc5 8. c4 Nxa4 9. Qxa4 d6 10. Nf3 Be7 11. d4 Nf6) 6... Na6?? { (0.35 → 2.29) Blunder. Nd3 was best. } { [%eval 2.29] } (6... Nd3 7. Bc2 Nxc1 8. Nxe5 d6 9. Nc4 Be6 10. Ne3 Nxa2 11. d4 Nf6 12. Nd2) 7. Na3? { (2.29 → 0.97) Mistake. Nxe5 was best. } { [%eval 0.97] } (7. Nxe5 d6 8. Nf3 Nf6 9. Bc2 Nc7 10. d4 d5 11. e5 Nh5 12. Nbd2 Be7) 7... g5?? { (0.97 → 2.94) Blunder. b5 was best. } { [%eval 2.94] } (7... b5 8. Bb3 d6 9. d4 a4 10. Bc2 Qc7 11. c4 b4 12. Nb1 Nf6 13. Bxa4) 8. Nxg5?? { (2.94 → -0.49) Blunder. d4 was best. } { [%eval -0.49] } (8. d4 b5 9. Bc2 d6 10. dxe5 g4 11. Nd4 dxe5 12. Nxc6 Qc7 13. Qd5 Bxa3) 8... f6?? { (-0.49 → 7.19) Blunder. Qxg5 was best. } { [%eval 7.19] } (8... Qxg5 9. f4 Qh4 10. fxe5 Nc5 11. Bc2 d5 12. exd5 Bg4 13. Qe1 Qxe1 14. Rxe1) 9. Nf3?? { (7.19 → 2.81) Blunder. Qh5+ was best. } { [%eval 2.81] } (9. Qh5+ Ke7 10. Qf7+ Kd6 11. Nc4+ Kc7 12. Ne6+ Kb8 13. Nxd8 Ne7 14. Qxf6 Ng6) 9... c5? { (2.81 → 5.50) Mistake. b5 was best. } { [%eval 5.5] } (9... b5 10. Bc2 d6 11. d4 Ne7 12. Nh4 Qd7 13. f4 Qg4 14. Qe1 exd4 15. cxd4) 10. Nb5 { [%eval 4.68] } 10... b6 { [%eval 5.72] } 11. Nd6+?? { (5.72 → 1.50) Blunder. Nxe5 was best. } { [%eval 1.5] } (11. Nxe5 h5 12. Ng6 Rh7 13. d4 Nc7 14. Nxc7+ Qxc7 15. Bf4 Qd8 16. e5 Ne7) 11... Ke7?? { (1.50 → 6.80) Blunder. Bxd6 was best. } { [%eval 6.8] } (11... Bxd6 12. d4 cxd4 13. cxd4 Qc7 14. Be3 Bb7 15. Rc1 Bc6 16. Bb3 a4 17. Bc4) 12. Nf5+ { [%eval 6.63] } 12... Ke6 { [%eval 7.17] } 13. N5d4+?? { (7.17 → 1.57) Blunder. Bb3+ was best. } { [%eval 1.57] } (13. Bb3+ d5 14. Bxd5+ Qxd5 15. exd5+ Kxd5 16. d4 Bxf5 17. Nh4 Bg6 18. dxc5+ Ke6) 13... Ke7?? { (1.57 → 7.09) Blunder. exd4 was best. } { [%eval 7.09] } (13... exd4 14. cxd4 Kf7 15. Ne5+ Ke7 16. d3 cxd4 17. Bb3 fxe5 18. Bg5+ Nf6 19. f4) 14. Nf5+ { [%eval 6.57] } 14... Ke6 { [%eval 7.11] } 15. Ng3?! { (7.11 → 4.77) Inaccuracy. Bb3+ was best. } { [%eval 4.77] } (15. Bb3+ d5 16. Bxd5+ Qxd5 17. exd5+ Kxd5 18. Ne3+ Kd6 19. d4 Bb7 20. dxe5+ Kc7) 15... Ke7 { [%eval 5.42] } 16. c4? { (5.42 → 3.16) Mistake. d4 was best. } { [%eval 3.16] } (16. d4 Kd6 17. dxe5+ Kc7 18. exf6 Nxf6 19. Bb3 h6 20. Ne5 Qe8 21. Bf4 d6) 16... d6 { [%eval 3.89] } 17. b3 { [%eval 3.1] } 17... Nh6?! { (3.10 → 4.06) Inaccuracy. Bh6 was best. } { [%eval 4.06] } (17... Bh6 18. Nh4 Qf8 19. Nhf5+ Kd8 20. a3 Ra7 21. h3 Bxf5 22. Nxf5 Bf4 23. b4) 18. Bb2?! { (4.06 → 3.16) Inaccuracy. Nh4 was best. } { [%eval 3.16] } (18. Nh4 Bg4 19. f3 Bd7 20. d4 Bxa4 21. Bxh6 Bd7 22. Nhf5+ Bxf5 23. Nxf5+ Ke8) 18... Ng4 { [%eval 3.84] } 19. h3 { [%eval 3.5] } 19... Nh6 { [%eval 3.57] } 20. d3 { [%eval 3.42] } 20... Rg8 { [%eval 4.12] } 21. Bd4?? { (4.12 → -1.98) Blunder. Nh4 was best. } { [%eval -1.98] } (21. Nh4 Ra7 22. Bc1 Kf7 23. Qh5+ Kg7 24. Bxh6+ Kh8 25. Bxf8 Qxf8 26. Qd1 Qh6) 21... cxd4 { [%eval -1.82] } 22. Nd2?! { (-1.82 → -2.81) Inaccuracy. Bc6 was best. } { White offers draw } { [%eval -2.81] } (22. Bc6 Ra7 23. Bd5 Be6 24. Nh4 Nc7 25. Kh2 Kd7 26. Rb1 Kc8 27. b4 a4) 22... f5? { (-2.81 → -1.18) Mistake. Ra7 was best. } { [%eval -1.18] } (22... Ra7 23. Nh5 Nc5 24. f4 Bxh3 25. fxe5 Rxg2+ 26. Kh1 Rg6 27. Qf3 Bg2+ 28. Qxg2) 23. exf5?! { (-1.18 → -1.85) Inaccuracy. Bc6 was best. } { [%eval -1.85] } (23. Bc6 Bd7 24. Bd5 f4 25. Nf5+ Kf6 26. Bxg8 Nxg8 27. g4 Kf7 28. Kh2 Nh6) 23... e4?? { (-1.85 → 2.39) Blunder. Bb7 was best. } { [%eval 2.39] } (23... Bb7 24. Nde4 Kf7 25. f4 Kg7 26. f6+ Kh8 27. fxe5 Nc5) 24. dxe4?! { (2.39 → 1.63) Inaccuracy. Qh5 was best. } { [%eval 1.63] } (24. Qh5 Bd7 25. Ndxe4 Bxa4 26. bxa4 Kd7 27. Rfe1 Nb4 28. Qf3 Kc7 29. Nh5 Nc2) 24... Kf6? { (1.63 → 3.60) Mistake. Bb7 was best. } { [%eval 3.6] } (24... Bb7 25. Nf3 Bg7 26. Nxd4 Nc5 27. Nc6+ Bxc6 28. Bxc6 Bxa1 29. Qxa1 Ra7 30. Nh5) 25. e5+? { (3.60 → 1.76) Mistake. Bc6 was best. } { [%eval 1.76] } (25. Bc6 Ra7 26. Nf3 d3 27. Nh5+ Ke7 28. f6+ Kf7 29. Bd5+ Ke8 30. e5 Nb4) 25... Kxe5?? { (1.76 → 6.22) Blunder. dxe5 was best. } { [%eval 6.22] } (25... dxe5 26. Nh5+ Kf7 27. Bc6 Nc7 28. f4 Nxf5 29. fxe5 Qg5 30. Rf2 Ra7 31. Ne4) 26. Nf3+ { [%eval 6.32] } 26... Kf4?? { (6.32 → Mate in 1) Checkmate is now unavoidable. Kf6 was best. } { [%eval #1] } (26... Kf6 27. Qxd4+ Kf7 28. Ne5+ dxe5 29. Qxd8 Kg7 30. Qd5 Kh8 31. Qxa8 Bc5 32. Qc6) 27. Qxd4# { White wins by checkmate. } 1-0