[Event "Kelas week 12 Arena"] [Site "https://lichess.org/fPTj2ifY"] [Date "2025.12.31"] [Round "-"] [White "B142420033"] [Black "d132510356"] [Result "1-0"] [GameId "fPTj2ifY"] [UTCDate "2025.12.31"] [UTCTime "07:05:01"] [WhiteElo "821"] [BlackElo "826"] [WhiteRatingDiff "+11"] [BlackRatingDiff "-24"] [Variant "Standard"] [TimeControl "180+2"] [ECO "A40"] [Opening "Polish Defense"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 { [%eval 0.17] } 1... b5?! { (0.17 → 0.73) Inaccuracy. Nf6 was best. } { [%eval 0.73] } { A40 Polish Defense } (1... Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 O-O 6. e3) 2. Nc3?! { (0.73 → 0.10) Inaccuracy. e4 was best. } { [%eval 0.1] } (2. e4 a6 3. Nd2 e6 4. a4 b4 5. Bd3 Nf6 6. e5 Nd5) 2... Nc6? { (0.10 → 1.25) Mistake. b4 was best. } { [%eval 1.25] } (2... b4 3. Na4 Nf6 4. e3 e6 5. Nf3 Be7 6. Bd3 d6 7. c3) 3. Nf3?! { (1.25 → 0.59) Inaccuracy. Nxb5 was best. } { [%eval 0.59] } (3. Nxb5 Nf6 4. Nf3 e6 5. e3 a6 6. Nc3 d5 7. Bd3 Nb4) 3... Nf6?! { (0.59 → 1.28) Inaccuracy. b4 was best. } { [%eval 1.28] } (3... b4 4. Na4 Nf6 5. c4 d6 6. g3 g6 7. Bg2 Rb8 8. O-O) 4. Ne5?! { (1.28 → 0.37) Inaccuracy. Nxb5 was best. } { [%eval 0.37] } (4. Nxb5 e6 5. c4 Ne4 6. c5 Bb7 7. e3 Be7 8. Nc3 f5) 4... Na5?! { (0.37 → 1.25) Inaccuracy. b4 was best. } { [%eval 1.25] } (4... b4) 5. Nxb5 { [%eval 1.23] } 5... c6?! { (1.23 → 1.88) Inaccuracy. e6 was best. } { [%eval 1.88] } (5... e6) 6. Bg5?? { (1.88 → -2.69) Blunder. Nc3 was best. } { [%eval -2.69] } (6. Nc3 d6 7. Nf3 d5 8. e3 Bf5 9. Ne5 Qc7 10. Bd2 Rb8 11. b3 Nb7) 6... cxb5 { [%eval -2.85] } 7. g4?! { (-2.85 → -3.68) Inaccuracy. e4 was best. } { [%eval -3.68] } (7. e4 Qb6 8. a4 b4 9. Be3 Qc7 10. Bd3 e6 11. Bf4 Qb6 12. Be3 Ba6) 7... Nxg4?? { (-3.68 → -0.58) Blunder. h6 was best. } { [%eval -0.58] } (7... h6 8. Bf4 e6 9. e4 Nc6 10. Nxc6 dxc6 11. h4 Bb7 12. f3 Nd7 13. Qd2) 8. Nxg4 { [%eval -0.56] } 8... f6 { [%eval -0.37] } 9. Bg2? { (-0.37 → -1.87) Mistake. Bc1 was best. } { [%eval -1.87] } (9. Bc1 Bb7 10. Rg1 Rc8 11. Qd3 Nc4 12. Bg2 d5 13. a4 Qa5+ 14. Kf1 b4) 9... fxg5?? { (-1.87 → 2.26) Blunder. d5 was best. } { [%eval 2.26] } (9... d5 10. e4 Bxg4 11. Qxg4 fxg5 12. h4 Rb8 13. hxg5 g6 14. exd5 Nc4 15. a4) 10. Bxa8 { [%eval 2.25] } 10... Nc6 { [%eval 2.87] } 11. O-O { [%eval 2.62] } 11... Nxd4? { (2.62 → 4.85) Mistake. e6 was best. } { [%eval 4.85] } (11... e6 12. Bxc6 dxc6 13. e3 Bd6 14. Qf3 Qc7 15. Ne5 c5 16. Qc6+ Qxc6 17. Nxc6) 12. Qxd4 { [%eval 4.89] } 12... Ba6 { [%eval 5.72] } 13. Qe4 { [%eval 5.05] } 13... Qxa8? { (5.05 → 10.81) Mistake. Qc7 was best. } { [%eval 10.81] } (13... Qc7 14. Rad1 e6 15. Qe5 Qc8 16. Be4 b4 17. Rd2 Be7 18. Qxg7 Rf8 19. Bxh7) 14. Qxa8+ { [%eval 10.36] } 14... Kf7 { [%eval 10.29] } 15. Ne5+ { [%eval 9.96] } 15... Kg8 { [%eval 11.25] } 16. Rad1 { [%eval 9.73] } 16... d6? { (9.73 → Mate in 2) Checkmate is now unavoidable. h5 was best. } { [%eval #2] } (16... h5 17. Nxd7 Kh7 18. f3 Rg8 19. Nxf8+ Kh6 20. Qc6+ g6 21. Qe6 Rxf8 22. Qxa6) 17. f4 { [%eval #5] } 17... dxe5 { [%eval #2] } 18. Rd8 { [%eval #9] } 18... exf4 { [%eval #1] } 19. b4? { (Mate in 1 → 7.90) Lost forced checkmate sequence. Rxf8# was best. } { [%eval 7.9] } (19. Rxf8#) 19... h5? { (7.90 → Mate in 4) Checkmate is now unavoidable. Kf7 was best. } { [%eval #4] } (19... Kf7 20. Rd7 g6 21. Qd5+ Kf6 22. Qc6+ Kf7 23. Qxa6 Bh6 24. Kh1 Re8 25. Qxb5) 20. h4? { (Mate in 4 → 8.77) Lost forced checkmate sequence. Rxf8+ was best. } { [%eval 8.77] } (20. Rxf8+ Kh7 21. Qe4+ g6 22. Qxe7+ Kh6 23. Rxh8#) 20... Rh6? { (8.77 → Mate in 3) Checkmate is now unavoidable. Kh7 was best. } { [%eval #3] } (20... Kh7 21. Rxf8 Rxf8 22. Qxf8 Bb7 23. hxg5 a6 24. Rd1 Be4 25. Rd7 Kg6) 21. Rxf8+ { [%eval #2] } 21... Kh7 { [%eval #2] } 22. Qe4+ { [%eval #5] } 22... g6 { [%eval #1] } 23. Qxe7# { White wins by checkmate. } 1-0