lichess dev

[Event "Open Arena"] [Site "http://chess-academy.net/esJyYEpL"] [Date "2020.11.28"] [Round "-"] [White "France_Defence"] [Black "GrigoreG"] [Result "1-0"] [UTCDate "2020.11.28"] [UTCTime "17:05:12"] [WhiteElo "1818"] [BlackElo "1659"] [WhiteRatingDiff "+82"] [BlackRatingDiff "-7"] [Variant "Standard"] [TimeControl "420+2"] [ECO "A54"] [Opening "Old Indian Defense: Two Knights Variation"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. Nf3 Nf6?! { (-0.02 → 0.59) Inaccuracy. Best move was e6. } (1... e6 2. c4 Nf6 3. d4 b6 4. a3 Bb7 5. Nc3 d5 6. Bf4) 2. c4?! { (0.59 → -0.15) Inaccuracy. Best move was d4. } (2. d4 e6 3. c4 h6 4. Bf4 d5 5. e3 c5 6. Nc3 cxd4) 2... d6? { (-0.15 → 1.14) Mistake. Best move was c5. } (2... c5) 3. Nc3?! { (1.14 → 0.36) Inaccuracy. Best move was d4. } (3. d4 e6 4. Nc3 d5 5. Bg5 Be7 6. cxd5 exd5 7. e3 O-O 8. Bd3 Be6 9. O-O h6) 3... e5?! { (0.36 → 1.03) Inaccuracy. Best move was c5. } (3... c5 4. e3) 4. d4?! { (1.03 → 0.46) Inaccuracy. Best move was e3. } { A54 Old Indian Defense: Two Knights Variation } (4. e3) 4... exd4 5. Nxd4 Nc6 6. e3?! { (0.83 → 0.05) Inaccuracy. Best move was Nxc6. } (6. Nxc6) 6... Nxd4?! { (0.05 → 0.68) Inaccuracy. Best move was g6. } (6... g6 7. b3 Bg7 8. Bb2 Nxd4 9. Qxd4 O-O 10. Be2 c6 11. Ne4 Ne8 12. Qd2 Bxb2 13. Qxb2) 7. exd4?! { (0.68 → -0.09) Inaccuracy. Best move was Qxd4. } (7. Qxd4 Be7) 7... Bg4? { (-0.09 → 1.40) Mistake. Best move was Be7. } (7... Be7 8. Be2 d5 9. c5 O-O 10. Be3 b6 11. b4 c6 12. O-O bxc5 13. dxc5 Rb8 14. b5) 8. Be2? { (1.40 → 0.28) Mistake. Best move was Qb3. } (8. Qb3) 8... Bxe2 9. Qxe2+ Be7 10. O-O O-O 11. Ne4?! { (0.48 → -0.51) Inaccuracy. Best move was Re1. } (11. Re1 Qd7 12. Bf4 Rfe8 13. Qf3 c6 14. h3 d5 15. c5 h6 16. Be5 Nh7 17. Ne2 Ng5) 11... Nxe4?! { (-0.51 → 0.13) Inaccuracy. Best move was d5. } (11... d5 12. Nc3 Re8 13. cxd5 Nxd5 14. Qf3 c6 15. Nxd5 Qxd5 16. Qxd5 cxd5 17. g3 Rac8 18. Bd2) 12. Qxe4 c6 13. b3?! { (0.13 → -0.52) Inaccuracy. Best move was d5. } (13. d5 Re8 14. Qd3 Bf6 15. Be3 Qc7 16. Rab1 Qa5 17. dxc6 bxc6 18. Qxd6 Qxa2 19. Qxc6 Rec8) 13... d5?! { (-0.52 → 0.16) Inaccuracy. Best move was Re8. } (13... Re8 14. Qd3 Bf6 15. Bd2 d5 16. Bc3 Qd7 17. Rfe1 g6 18. a4 h5 19. c5 a6 20. h3) 14. Qd3?! { (0.16 → -0.50) Inaccuracy. Best move was cxd5. } (14. cxd5 cxd5 15. Qd3 Re8 16. Bf4 Qd7 17. Rac1 Rac8 18. Rxc8 Rxc8 19. Re1 Bb4 20. Bd2 Bxd2) 14... dxc4 15. bxc4 b5 16. cxb5 cxb5 17. Qxb5 Rb8?! { (0.12 → 0.69) Inaccuracy. Best move was Qxd4. } (17... Qxd4 18. Be3 Qe4 19. Rac1 a5 20. Rfe1 Bb4 21. Red1 Rfc8 22. a4 h6 23. Qd7 Qe6 24. Qxe6) 18. Qd3 Rb4?! { (0.43 → 1.14) Inaccuracy. Best move was Qd5. } (18... Qd5) 19. Be3?! { (1.14 → 0.53) Inaccuracy. Best move was Rd1. } (19. Rd1 Ra4 20. Be3 Qd5 21. Qb3 Qd7 22. Rac1 Bd6 23. Rc2 Ra3 24. Qc4 Ra5 25. Rdc1 Qf5) 19... Qd5 20. a3 Rb3 21. Qc2? { (1.01 → -0.05) Mistake. Best move was Qa6. } (21. Qa6 Qb7 22. Qxb7 Rxb7 23. a4 Rd7 24. Rfd1 f5 25. g3 g5 26. f4 gxf4 27. Bxf4 Bf6) 21... Rb5? { (-0.05 → 1.02) Mistake. Best move was Bxa3. } (21... Bxa3 22. Rfb1 Rfb8 23. Rxb3 Qxb3 24. Qxb3 Rxb3 25. g3 a5 26. d5 f6 27. d6 Rd3 28. Bb6) 22. Rfc1 Rb6?! { (0.56 → 1.22) Inaccuracy. Best move was f5. } (22... f5) 23. Qc4?! { (1.22 → 0.71) Inaccuracy. Best move was Qc7. } (23. Qc7 Rb7) 23... Qe4?! { (0.71 → 1.50) Inaccuracy. Best move was Qd7. } (23... Qd7) 24. h3? { (1.50 → 0.25) Mistake. Best move was d5. } (24. d5 Qxc4 25. Rxc4 Rb7 26. a4 Rd7 27. g3 a5 28. Rd1 f6 29. Rc6 Bb4 30. Bc5 Rb8) 24... Rg6 25. g3?! { (0.44 → -0.09) Inaccuracy. Best move was Qf1. } (25. Qf1 Bd6 26. Rc3 Rb8 27. Rac1 h5 28. Kh1 Kh7 29. f3 Qf5 30. Qe2 Re8 31. Qd2 Kg8) 25... Bd6 26. Qc6 Bxg3?? { (-0.13 → 14.00) Blunder. Best move was Rxg3+. } (26... Rxg3+ 27. fxg3) 27. Qxe4 Bd6+ 28. Kf1 Re6 29. Qd5 Rg6 30. Ke2 Re8 31. Rc6 Bh2 32. Rxg6 hxg6 33. Qd7 Re4?! { (17.94 → Mate in 8) Checkmate is now unavoidable. Best move was Rf8. } (33... Rf8 34. Qxa7) 34. Qxa7?! { (Mate in 8 → 18.61) Lost forced checkmate sequence. Best move was Rc1. } (34. Rc1 Bf4 35. Rc8+ Kh7 36. Qxf7 Bxe3 37. fxe3 a6 38. Rg8 Rxe3+ 39. Kxe3 Kh6 40. Rh8+ Kg5) 34... Bd6?! { (18.61 → Mate in 9) Checkmate is now unavoidable. Best move was Re6. } (34... Re6 35. Rc1) 35. Qa8+ Kh7 36. Qxe4 f5 37. Qd5 Bxa3 38. Rxa3 g5 39. Qe5?! { (Mate in 3 → Mate in 4) Not the best checkmate sequence. Best move was Qxf5+. } (39. Qxf5+ Kh6 40. Ra6+ g6 41. Qxg6#) 39... f4 40. Ra7 fxe3 41. Qxg7# { White wins by checkmate. } 1-0