lichess dev

[Event "Masterclass Arena"] [Site "http://chess-academy.net/xc4Hw9g2"] [Date "2022.01.04"] [Round "-"] [White "raul"] [Black "PATRICK"] [Result "0-1"] [UTCDate "2022.01.04"] [UTCTime "15:37:22"] [WhiteElo "1332"] [BlackElo "1361"] [WhiteRatingDiff "-12"] [BlackRatingDiff "+72"] [Variant "Standard"] [TimeControl "300+2"] [ECO "A40"] [Opening "Horwitz Defense"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. d4 e6 { A40 Horwitz Defense } 2. Qd3? { (0.38 → -0.71) Mistake. Best move was e4. } (2. e4 d5 3. exd5 exd5 4. Nf3 Nf6 5. Bd3 c5 6. O-O c4) 2... Be7? { (-0.71 → 0.63) Mistake. Best move was d5. } (2... d5 3. Nf3 c5 4. Bf4 Nc6 5. e3 Nf6 6. c3 Nh5 7. Bg3 Nxg3 8. hxg3 h6 9. Nbd2) 3. f3? { (0.63 → -0.94) Mistake. Best move was e4. } (3. e4 d5) 3... Nf6?! { (-0.94 → -0.30) Inaccuracy. Best move was d5. } (3... d5 4. Nc3) 4. f4? { (-0.30 → -1.37) Mistake. Best move was e4. } (4. e4 O-O) 4... O-O 5. f5? { (-0.89 → -3.08) Mistake. Best move was e4. } (5. e4 c5) 5... exf5?! { (-3.08 → -2.42) Inaccuracy. Best move was c5. } (5... c5 6. c3 Qc7 7. Na3 d5 8. Nf3 Nc6 9. g3 Ne4 10. Bg2 cxd4 11. cxd4 Bb4+ 12. Kf1) 6. g4?? { (-2.42 → -5.75) Blunder. Best move was g3. } (6. g3 d5 7. Nf3 Ne4 8. Bg2 c5 9. O-O Nc6 10. c3 Re8 11. Qd1 cxd4 12. cxd4 Be6) 6... fxg4? { (-5.75 → -4.09) Mistake. Best move was Ne4. } (6... Ne4 7. Be3) 7. h3 gxh3? { (-4.52 → -2.25) Mistake. Best move was d5. } (7... d5 8. hxg4 c5 9. g5 c4 10. Qf3 Ne4 11. Nd2 Nxg5 12. Qg2 Nc6 13. c3 Bf5 14. Ngf3) 8. Rxh3?? { (-2.25 → -5.98) Blunder. Best move was Bxh3. } (8. Bxh3) 8... Nd5?? { (-5.98 → Mate in 1) Checkmate is now unavoidable. Best move was d5. } (8... d5) 9. Rh5?? { (Mate in 1 → -4.17) Lost forced checkmate sequence. Best move was Qxh7#. } (9. Qxh7#) 9... Nf4?? { (-4.17 → Mate in 1) Checkmate is now unavoidable. Best move was Nf6. } (9... Nf6) 10. Qe3?? { (Mate in 1 → -9.13) Lost forced checkmate sequence. Best move was Qxh7#. } (10. Qxh7#) 10... Nxh5 11. Qh3?! { (-8.88 → -9.44) Inaccuracy. Best move was Nc3. } (11. Nc3 Re8 12. Qf3 Bh4+ 13. Kd1 Ng3 14. e3 Nxf1 15. Qxf1 d5 16. Nf3 Bf6 17. Ne2 Nc6) 11... Nf6 12. Qh4?! { (-9.18 → -9.80) Inaccuracy. Best move was Qb3. } (12. Qb3 Nc6) 12... Nd5?! { (-9.80 → -9.13) Inaccuracy. Best move was d5. } (12... d5) 13. Qe4 Nf6 14. Qd5?! { (-9.10 → -23.11) Inaccuracy. Best move was Qh1. } (14. Qh1 Nc6 15. Nf3 d5 16. Qg1 Ne4 17. Be3 f5 18. c3 f4 19. Bf2 Bf5 20. Kd1 Nxf2+) 14... Nxd5 15. Bg2 Bh4+ 16. Kf1 Nf4 17. Bxb7 Bxb7 18. d5?! { (-30.58 → Mate in 7) Checkmate is now unavoidable. Best move was Bxf4. } (18. Bxf4 Qf6) 18... Bxd5?! { (Mate in 7 → -37.34) Lost forced checkmate sequence. Best move was Qg5. } (18... Qg5 19. Bxf4 Qxd5 20. Bg3 Bxg3 21. Nf3 Qh5 22. Kg1 Bxf3 23. exf3 Qh2+ 24. Kf1 Qf2#) 19. Bxf4 Qf6 20. e4?! { (-29.55 → Mate in 4) Checkmate is now unavoidable. Best move was Nd2. } (20. Nd2 Qxf4+) 20... Bxe4?! { (Mate in 4 → -40.33) Lost forced checkmate sequence. Best move was Qxf4+. } (20... Qxf4+ 21. Ke2 Bc4+ 22. Kd1 Qf1+ 23. Kd2 Qe1#) 21. Nh3?! { (-40.33 → Mate in 4) Checkmate is now unavoidable. Best move was Ne2. } (21. Ne2 Qxb2) 21... Qd4?! { (Mate in 4 → Mate in 10) Not the best checkmate sequence. Best move was Qa6+. } (21... Qa6+ 22. c4 Qxc4+ 23. Kg1 Qe2 24. Bxc7 Qg2#) 22. Nf2 Bxf2?! { (Mate in 1 → -32.92) Lost forced checkmate sequence. Best move was Qxf2#. } (22... Qxf2#) 23. Ke2?! { (-32.92 → Mate in 4) Checkmate is now unavoidable. Best move was Nc3. } (23. Nc3 Bxc2) 23... Bh4 24. c3 Qf2+?! { (Mate in 1 → Mate in 1) Not the best checkmate sequence. Best move was Qd3#. } (24... Qd3#) 25. Kd1 Qxf4?! { (Mate in 1 → Mate in 4) Not the best checkmate sequence. Best move was Qc2#. } (25... Qc2#) 26. Nd2 Bg5 27. Nxe4 Qxe4 28. b3 Qf4?! { (Mate in 2 → Mate in 2) Not the best checkmate sequence. Best move was Qd3+. } (28... Qd3+ 29. Ke1 Bh4#) 29. c4 Qd2# { Black wins by checkmate. } 0-1