lichess dev

[Event "Open Arena"] [Site "http://chess-academy.net/aTsDSrMI"] [Date "2021.02.08"] [Round "-"] [White "Arenas"] [Black "Marius"] [Result "1-0"] [UTCDate "2021.02.08"] [UTCTime "17:47:42"] [WhiteElo "2229"] [BlackElo "1709"] [WhiteRatingDiff "+4"] [BlackRatingDiff "-2"] [Variant "Standard"] [TimeControl "420+2"] [ECO "B07"] [Opening "Pirc Defense #4"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. e4 d6?! { (0.12 → 0.73) Inaccuracy. Best move was e6. } { B07 Pirc Defense #4 } (1... e6 2. Nf3 d5 3. exd5 exd5 4. d4 Nf6 5. Bd3 Bd6 6. O-O) 2. Nf3?! { (0.73 → 0.21) Inaccuracy. Best move was d4. } (2. d4 Nf6 3. Nc3 e6 4. Nf3 Be7 5. Bd3 Nbd7 6. e5 dxe5) 2... e6 3. d4 Bd7?! { (0.69 → 1.45) Inaccuracy. Best move was Nf6. } (3... Nf6 4. Bd3 Nbd7 5. O-O Be7 6. c3 e5 7. Be3 O-O 8. h3) 4. c3?! { (1.45 → 0.89) Inaccuracy. Best move was Bd3. } (4. Bd3 Ne7 5. Nc3 Nbc6 6. O-O Ng6 7. Be3 Be7 8. a3 O-O 9. Ne2 Nh4 10. Nxh4 Bxh4) 4... Be7 5. Bd3 Nc6?! { (0.85 → 1.62) Inaccuracy. Best move was c5. } (5... c5 6. d5 Na6 7. O-O exd5 8. exd5 Nf6 9. Re1 O-O 10. h3 Re8 11. c4 Nb4 12. Nc3) 6. e5?! { (1.62 → 1.06) Inaccuracy. Best move was O-O. } (6. O-O Nf6) 6... dxe5?! { (1.06 → 1.59) Inaccuracy. Best move was f5. } (6... f5 7. b4) 7. dxe5 f6?! { (0.91 → 1.60) Inaccuracy. Best move was f5. } (7... f5 8. b4 Nh6 9. Bxh6 gxh6 10. O-O O-O 11. Nbd2 a6 12. a4 Kh8 13. Qe2 h5 14. Nc4) 8. Bf4? { (1.60 → -0.29) Mistake. Best move was O-O. } (8. O-O fxe5) 8... fxe5? { (-0.29 → 1.44) Mistake. Best move was g5. } (8... g5) 9. Bxe5 Nxe5?! { (0.83 → 1.47) Inaccuracy. Best move was Nf6. } (9... Nf6 10. Nbd2 Bd6 11. Nc4 Qe7 12. O-O O-O-O 13. Re1 Bxe5 14. Nfxe5 Nxe5 15. Nxe5 Bb5 16. c4) 10. Nxe5 Bf6 11. Qh5+?! { (1.37 → 0.79) Inaccuracy. Best move was Na3. } (11. Na3 Qe7 12. Nxd7 Qxd7 13. Qf3 O-O-O 14. O-O-O c6 15. Bc4 Qc7 16. Bxe6+ Kb8 17. Nc4 Ne7) 11... g6 12. Nxg6?? { (1.18 → -2.42) Blunder. Best move was Qe2. } (12. Qe2 Ne7 13. Bc4 Bxe5 14. Qxe5 Rf8 15. Nd2 Nc6 16. Qe3 Qf6 17. O-O O-O-O 18. Nf3 e5) 12... hxg6 13. Qxg6+?! { (-1.76 → -2.38) Inaccuracy. Best move was Bxg6+. } (13. Bxg6+ Kf8) 13... Kf8? { (-2.38 → -1.37) Mistake. Best move was Ke7. } (13... Ke7 14. Nd2 Be8 15. Qg3 Qd6 16. O-O-O Rd8 17. Bc2 Qxg3 18. hxg3 Nh6 19. Rde1 Bd7 20. Ne4) 14. Nd2 Ne7?? { (-2.02 → 6.85) Blunder. Best move was Ba4. } (14... Ba4 15. Qg3) 15. Qxf6+ Kg8 16. Ne4 Nd5 17. Qg6+ Kf8 18. Ng5 Qe7?! { (5.35 → 5.88) Inaccuracy. Best move was Qf6. } (18... Qf6 19. Nh7+ Rxh7 20. Qxh7 Rd8 21. O-O-O Ba4 22. Bc2 Rd7 23. Qe4 Bc6 24. Qd4 Qxd4 25. Rxd4) 19. h4? { (5.88 → 4.39) Mistake. Best move was Nh7+. } (19. Nh7+) 19... Rg8?? { (4.39 → 13.22) Blunder. Best move was Nf6. } (19... Nf6) 20. Nh7+ Qxh7 21. Qxh7 Nf6 22. Qh6+ Kf7 23. h5 Rh8 24. Bg6+ Ke7?! { (19.72 → Mate in 18) Checkmate is now unavoidable. Best move was Kg8. } (24... Kg8 25. Qg5) 25. Qg7+ Kd6 26. O-O-O+ Kc6?! { (16.11 → Mate in 11) Checkmate is now unavoidable. Best move was Nd5. } (26... Nd5 27. c4) 27. Qxf6 b6?! { (33.92 → Mate in 4) Checkmate is now unavoidable. Best move was Rhd8. } (27... Rhd8 28. Qd4) 28. Be4+?! { (Mate in 4 → Mate in 5) Not the best checkmate sequence. Best move was Qf3+. } (28. Qf3+ Kc5 29. b4+ Kb5 30. Qd3+ Kc6 31. Be4#) 28... Kb5 29. a4+?! { (Mate in 5 → Mate in 6) Not the best checkmate sequence. Best move was Qd4. } (29. Qd4 Ka5 30. b4+ Ka4 31. Qc4 a5 32. Bc2+ Ka3 33. Qb3#) 29... Kxa4 30. Qd4+ Ka5 31. Qxd7?! { (Mate in 4 → Mate in 4) Not the best checkmate sequence. Best move was Kc2. } (31. Kc2 Kb5 32. Qb4+ Ka6 33. Ra1+ Ba4+ 34. Rxa4#) 31... Rad8 32. Qxc7?! { (Mate in 2 → Mate in 5) Not the best checkmate sequence. Best move was b4+. } (32. b4+ Ka6 33. Qa4#) 32... Rd2 33. Qxa7+?! { (Mate in 4 → Mate in 5) Not the best checkmate sequence. Best move was Bc6. } (33. Bc6 Rxd1+ 34. Rxd1 Rh7 35. Qe5+ b5 36. Qxb5#) 33... Kb5 34. Rxd2 { Black resigns. } 1-0