lichess dev

[Event "Masterclass Arena"] [Site "http://chess-academy.net/bqPXlwDm"] [Date "2021.11.26"] [Round "-"] [White "Mariaj"] [Black "Dancer"] [Result "0-1"] [UTCDate "2021.11.26"] [UTCTime "17:02:44"] [WhiteElo "1613"] [BlackElo "1731"] [WhiteRatingDiff "-22"] [BlackRatingDiff "+82"] [Variant "Standard"] [TimeControl "420+0"] [ECO "A06"] [Opening "Réti Opening"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. Nf3 d5 { A06 Réti Opening } 2. g4? { (0.44 → -2.23) Mistake. Best move was d4. } (2. d4 Bf5 3. c4 e6 4. Nc3 Nc6 5. cxd5 exd5 6. Bg5 Be7) 2... Nf6? { (-2.23 → -0.11) Mistake. Best move was Bxg4. } (2... Bxg4) 3. h3?! { (-0.11 → -1.02) Inaccuracy. Best move was g5. } (3. g5) 3... h5? { (-1.02 → 0.52) Mistake. Best move was Nc6. } (3... Nc6) 4. Rg1? { (0.52 → -1.88) Mistake. Best move was g5. } (4. g5 Ne4 5. d3 Nd6 6. Nc3 c6 7. g6 f6 8. e4 e5 9. exd5 cxd5 10. Nxd5 Nf5) 4... hxg4 5. Rxg4?? { (-1.55 → -5.03) Blunder. Best move was hxg4. } (5. hxg4 Nxg4 6. d4 Nc6 7. Bf4 Bf5 8. e3 Qd7 9. Bd3 O-O-O 10. Nc3 f6 11. Bxf5 Qxf5) 5... Nxg4 6. Bg2?? { (-4.52 → -8.27) Blunder. Best move was hxg4. } (6. hxg4 Bxg4 7. d4 Nc6 8. c3 Qd7 9. Bf4 O-O-O 10. Nbd2 f6 11. Qa4 Kb8 12. O-O-O a6) 6... Nf6 7. e3? { (-8.09 → -9.93) Mistake. Best move was Ng5. } (7. Ng5 Qd6 8. d3 Qh2 9. Kf1 Bxh3 10. Nxh3 Rxh3 11. Nc3 Rh4 12. e4 dxe4 13. Nxe4 Nxe4) 7... Nbd7? { (-9.93 → -7.59) Mistake. Best move was Bxh3. } (7... Bxh3) 8. d3 e5?! { (-8.08 → -7.57) Inaccuracy. Best move was Nc5. } (8... Nc5 9. Ng5 e5 10. Nc3 Ng8 11. h4 Rxh4 12. f4 exf4 13. exf4 Bg4 14. Qd2 d4 15. Ne2) 9. Bh1? { (-7.57 → -9.09) Mistake. Best move was Nc3. } (9. Nc3 c6) 9... Qe7?! { (-9.09 → -8.21) Inaccuracy. Best move was Rxh3. } (9... Rxh3 10. Bg2) 10. Nxe5? { (-8.21 → -13.13) Mistake. Best move was Ng1. } (10. Ng1 e4) 10... Qxe5 11. f4 Qf5 12. d4 Qxh3 13. Nc3?! { (-17.06 → Mate in 9) Checkmate is now unavoidable. Best move was Bf3. } (13. Bf3 Qg3+) 13... Qxh1+ 14. Ke2 Rh2+ 15. Kd3 Qe4+?! { (Mate in 7 → -11.67) Lost forced checkmate sequence. Best move was Ne5+. } (15... Ne5+ 16. fxe5 Bf5+ 17. e4 Bxe4+ 18. Ke3 Qg2 19. Ne2 Qg5+ 20. Nf4 Qg3+ 21. Qf3 Qxf3#) 16. Nxe4 dxe4+ 17. Kc4 Nb6+ 18. Kb5?! { (-18.04 → Mate in 2) Checkmate is now unavoidable. Best move was Kc3. } (18. Kc3 Bg4) 18... c6+?! { (Mate in 2 → Mate in 4) Not the best checkmate sequence. Best move was Bd7+. } (18... Bd7+ 19. Ka5 Nc4#) 19. Ka5 Bd6?! { (Mate in 4 → -20.46) Lost forced checkmate sequence. Best move was Nc4+. } (19... Nc4+ 20. Ka4 b5+ 21. Kb3 Na5+ 22. Kc3 b4#) 20. Bd2?! { (-20.46 → Mate in 8) Checkmate is now unavoidable. Best move was a3. } (20. a3 Bg4 21. Qxg4 Nxg4 22. f5 Rh5 23. c4 Nxe3 24. Bxe3 Nxc4+ 25. Ka4 Nxe3 26. f6 gxf6) 20... Nc4+ 21. Ka4 b5+ 22. Kb3 Rxd2 23. Qxd2 Nxd2+ 24. Kc3 Nc4 25. Kb3 Be6 26. a3 Nxe3+ 27. Kc3 Nc4 28. Kb3?! { (-25.90 → Mate in 12) Checkmate is now unavoidable. Best move was b4. } (28. b4 Nd5+) 28... Nxa3+ 29. Kc3 b4+ 30. Kd2 Nc4+?! { (Mate in 14 → -33.72) Lost forced checkmate sequence. Best move was Bxf4+. } (30... Bxf4+ 31. Ke2 Bg4+ 32. Kf2 e3+ 33. Kg1 Nxc2 34. Rb1 e2 35. Kg2 e1=Q 36. Rxe1+ Nxe1+ 37. Kf1) 31. Kd1 Nxb2+ 32. Kc1 Nc4 33. Rb1?! { (-39.97 → Mate in 8) Checkmate is now unavoidable. Best move was f5. } (33. f5 Bxf5) 33... Bxf4+ 34. Kd1 Bg4+ 35. Ke1 Bg3+ 36. Kf1 Nd2+?! { (Mate in 5 → Mate in 8) Not the best checkmate sequence. Best move was Bf3. } (36... Bf3 37. Rxb4 Nd2+ 38. Kg1 Ng4 39. Rb8+ Bxb8 40. d5 Bh2#) 37. Kg1 e3 38. Kh1 Bf3+ 39. Kg1 Ng4 40. Rd1 Bf2# { Black wins by checkmate. } 0-1