lichess dev

[Event "Koltanowski Arena"] [Site "http://chess-academy.net/YKr3MNWN"] [Date "2025.03.06"] [Round "-"] [White "PopaIon"] [Black "toma123"] [Result "0-1"] [UTCDate "2025.03.06"] [UTCTime "17:45:25"] [WhiteElo "1312"] [BlackElo "1306"] [WhiteRatingDiff "-12"] [BlackRatingDiff "+77"] [Variant "Standard"] [TimeControl "600+0"] [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. Bc4?! { (0.73 → -0.15) Inaccuracy. Best move was d4. } (2. d4 Nf6 3. Nc3 e6 4. Nf3 Be7 5. Bd3 Nbd7 6. e5 dxe5) 2... Be6? { (-0.15 → 1.66) Mistake. Best move was Nf6. } (2... Nf6 3. Qe2 e6 4. Nf3 Be7 5. e5 dxe5 6. Nxe5 O-O 7. O-O) 3. Bd3? { (1.66 → -0.20) Mistake. Best move was Bxe6. } (3. Bxe6 fxe6) 3... Nc6?! { (-0.20 → 0.57) Inaccuracy. Best move was c5. } (3... c5 4. c3 Nc6 5. Nf3 Nf6 6. O-O Bg4 7. Bc2 e6 8. d3 Be7 9. h3 Bh5 10. Bf4) 4. f4? { (0.57 → -0.62) Mistake. Best move was Nf3. } (4. Nf3 Nf6) 4... Qd7?? { (-0.62 → 2.63) Blunder. Best move was Bd7. } (4... Bd7) 5. f5 b6? { (2.24 → 5.13) Mistake. Best move was Bxf5. } (5... Bxf5 6. exf5 g6 7. Nf3 gxf5 8. O-O a6 9. c3 e6 10. Bc2 Bg7 11. d4 Nge7 12. a4) 6. fxe6 Qxe6 7. b3? { (5.26 → 3.68) Mistake. Best move was c3. } (7. c3 Ne5 8. Bc2 Qd7 9. d4 Ng6 10. Nf3 Nf6 11. e5 dxe5 12. O-O c6 13. Bxg6 hxg6) 7... O-O-O? { (3.68 → 5.21) Mistake. Best move was Nb4. } (7... Nb4 8. Bb2 Nf6 9. Nc3 Nxd3+ 10. cxd3 c6 11. Nf3 g6 12. O-O Bg7 13. Qe2 O-O 14. d4) 8. Bc4?? { (5.21 → 1.50) Blunder. Best move was Nf3. } (8. Nf3) 8... Qxe4+?! { (1.50 → 2.48) Inaccuracy. Best move was d5. } (8... d5 9. Bb5) 9. Ne2? { (2.48 → 0.71) Mistake. Best move was Qe2. } (9. Qe2 Qh4+ 10. g3 Qf6 11. c3 e5 12. Ba6+ Kb8 13. Nf3 d5 14. d3 h6 15. O-O Qe6) 9... Qxg2 10. Rg1? { (1.13 → -0.95) Mistake. Best move was Ng3. } (10. Ng3 Nf6) 10... Qxh2 11. Ng3?? { (0.00 → -9.26) Blunder. Best move was d4. } (11. d4 e5 12. Bd5 Nxd4 13. Nbc3 Qh4+ 14. Rg3 Ne7 15. Bg5 Qh2 16. Rg2 Qh3 17. Rg3) 11... Qxg1+ 12. Nf1 Qg6? { (-9.33 → -7.87) Mistake. Best move was d5. } (12... d5) 13. Qe2?! { (-7.87 → -8.65) Inaccuracy. Best move was Bd3. } (13. Bd3 Qg5) 13... d5?! { (-8.65 → -7.88) Inaccuracy. Best move was Nd4. } (13... Nd4) 14. Bxd5? { (-7.88 → -11.58) Mistake. Best move was Bd3. } (14. Bd3 Qf6) 14... Rxd5 15. c4 Re5 16. Ne3 Nb4 17. d4 Nc2+ 18. Kd2 Nxa1 19. dxe5 Nxb3+ 20. axb3 Qc6? { (-10.11 → -7.48) Mistake. Best move was Qxb1. } (20... Qxb1) 21. Qg4+?! { (-7.48 → -8.16) Inaccuracy. Best move was Ba3. } (21. Ba3 g6) 21... Qd7+ 22. Nd5? { (-8.33 → -21.41) Mistake. Best move was Qxd7+. } (22. Qxd7+ Kxd7) 22... Qxg4 23. b4 Nh6 24. b5 g5 25. e6 fxe6 26. Ne3 Bg7 27. Nxg4 Nxg4 28. Bb2 Bxb2 29. Kc2 Nh2 30. Kxb2 g4 31. Nd2?! { (-65.15 → Mate in 29) Checkmate is now unavoidable. Best move was Nc3. } (31. Nc3 g3 32. Ne2 g2 33. Ng1 Rg8 34. Kc2 Rg3 35. Ne2 g1=Q 36. Nxg1 Rxg1 37. Kd3 Rg4) 31... g3 32. Kc1?! { (-75.46 → Mate in 9) Checkmate is now unavoidable. Best move was Nb3. } (32. Nb3 g2) 32... g2 33. Kd1 g1=Q+ 34. Ke2 Qg3?! { (Mate in 4 → Mate in 6) Not the best checkmate sequence. Best move was Rd8. } (34... Rd8 35. c5 Qg2+ 36. Ke3 Qxd2+ 37. Ke4 Qd4#) 35. Kd1 Rf8?! { (Mate in 4 → Mate in 4) Not the best checkmate sequence. Best move was Qc3. } (35... Qc3 36. Ke2 Rd8 37. Ne4 Qf3+ 38. Ke1 Qf1#) 36. Ne4 Qg2?! { (Mate in 4 → Mate in 4) Not the best checkmate sequence. Best move was Qd3+. } (36... Qd3+ 37. Kc1 Rf1+ 38. Kb2 Rb1+ 39. Ka2 Qb3#) 37. Ng5 Rf1# { Black wins by checkmate. } 0-1