lichess dev

[Event "Masterclass Arena"] [Site "http://chess-academy.net/0L05uMoG"] [Date "2021.12.21"] [Round "-"] [White "Mariaj"] [Black "Artik"] [Result "0-1"] [UTCDate "2021.12.21"] [UTCTime "15:26:51"] [WhiteElo "1490"] [BlackElo "1794"] [WhiteRatingDiff "-4"] [BlackRatingDiff "+9"] [Variant "Standard"] [TimeControl "300+1"] [ECO "B01"] [Opening "Scandinavian Defense"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. e4 d5?! { (0.12 → 0.81) Inaccuracy. Best move was e6. } { B01 Scandinavian Defense } (1... e6 2. Nf3 d5 3. exd5 exd5 4. d4 Nf6 5. Bd3 Bd6 6. O-O) 2. f3? { (0.81 → -1.19) Mistake. Best move was exd5. } (2. exd5 Nf6 3. Nf3 Nxd5 4. d4 c5 5. c4 Nf6 6. d5 e6) 2... dxe4? { (-1.19 → 0.00) Mistake. Best move was e5. } (2... e5 3. d4) 3. fxe4 Nf6?! { (-0.49 → 0.26) Inaccuracy. Best move was e5. } (3... e5) 4. Bd3? { (0.26 → -1.29) Mistake. Best move was e5. } (4. e5 Nd5) 4... Bg4? { (-1.29 → 0.48) Mistake. Best move was e5. } (4... e5 5. Nc3) 5. Ne2? { (0.48 → -1.61) Mistake. Best move was Be2. } (5. Be2) 5... Bxe2? { (-1.61 → 0.90) Mistake. Best move was e6. } (5... e6 6. Nbc3) 6. Bxe2? { (0.90 → -0.66) Mistake. Best move was Qxe2. } (6. Qxe2) 6... e5? { (-0.66 → 0.59) Mistake. Best move was Nxe4. } (6... Nxe4) 7. Bb5+? { (0.59 → -0.47) Mistake. Best move was d3. } (7. d3 Bc5) 7... c6 8. Bc4 Bc5?! { (-0.74 → 0.00) Inaccuracy. Best move was Nxe4. } (8... Nxe4 9. Qf3) 9. Rf1?! { (0.00 → -0.67) Inaccuracy. Best move was Qf3. } (9. Qf3 b5 10. Bb3 Nbd7 11. a4 O-O 12. axb5 cxb5 13. Nc3 Nb8 14. Nd5 Nbd7) 9... Qd4? { (-0.67 → 0.65) Mistake. Best move was O-O. } (9... O-O 10. Qf3) 10. Bd3? { (0.65 → -0.96) Mistake. Best move was d3. } (10. d3 b5) 10... O-O?! { (-0.96 → 0.00) Inaccuracy. Best move was Na6. } (10... Na6 11. Bxa6) 11. c3?? { (0.00 → -7.13) Blunder. Best move was Qf3. } (11. Qf3 b5) 11... Qxd3 12. Rg1?? { (-6.72 → -13.15) Blunder. Best move was b4. } (12. b4) 12... Bxg1 13. Na3 Qxe4+ 14. Kf1 Bxh2 15. Nc2 Qf4+ 16. Ke1?! { (-13.34 → Mate in 4) Checkmate is now unavoidable. Best move was Qf3. } (16. Qf3 Nbd7 17. d3 Qxf3+ 18. gxf3 Nc5 19. d4 Nd3 20. Rb1 Nxc1 21. Rxc1 Rad8 22. Re1 Bg3) 16... Bg3+ 17. Ke2 Qe4+?! { (Mate in 3 → -14.50) Lost forced checkmate sequence. Best move was Qg4+. } (17... Qg4+ 18. Kf1 Qxd1+ 19. Ne1 Qxe1#) 18. Ne3 Ng4 19. Qc2 Qxc2 20. Nxc2 f5 21. Ne3 Nxe3 22. dxe3 f4 23. exf4 Bxf4 24. b4 Bxc1 25. Rxc1 Re8 26. c4 e4 27. b5 cxb5 28. cxb5 Nd7 29. Rd1 Nf6 30. Rd6 e3 31. a4 a6 32. b6 a5 33. Rd3?! { (-21.78 → Mate in 10) Checkmate is now unavoidable. Best move was Rd1. } (33. Rd1 Ra6) 33... Ng4 34. Rd4 Ne5?! { (Mate in 9 → -21.73) Lost forced checkmate sequence. Best move was Rad8. } (34... Rad8 35. Rc4 Rd2+ 36. Ke1 Nh2 37. Rc3 Rxg2 38. Kd1 e2+ 39. Kc2 e1=Q+ 40. Kb3 Qb1+ 41. Kc4) 35. Rd5 Nc4 36. Rd4 Nb2 37. Ke1?! { (-63.16 → Mate in 8) Checkmate is now unavoidable. Best move was Rd7. } (37. Rd7 Rac8) 37... e2 38. Kd2 e1=Q+ 39. Kc2 Re2+?! { (Mate in 4 → Mate in 4) Not the best checkmate sequence. Best move was Nd1. } (39... Nd1 40. Kb1 Re2 41. Rd8+ Rxd8 42. Kc1 Nb2#) 40. Kb3 Re3+?! { (Mate in 4 → Mate in 4) Not the best checkmate sequence. Best move was Qg3+. } (40... Qg3+ 41. Rd3 Qxd3+ 42. Ka2 Nc4+ 43. Ka1 Qd1#) 41. Kxb2 Qe2+ 42. Kb1 Rb3+ 43. Ka1 Qb2# { Black wins by checkmate. } 0-1