lichess dev

[Event "Ariadna Arena"] [Site "http://chess-academy.net/KGMcLIdF"] [Date "2025.04.01"] [Round "-"] [White "IANIS7"] [Black "David28"] [Result "1-0"] [UTCDate "2025.04.01"] [UTCTime "16:40:19"] [WhiteElo "1150"] [BlackElo "1099"] [WhiteRatingDiff "+29"] [BlackRatingDiff "-23"] [Variant "Standard"] [TimeControl "600+1"] [ECO "A00"] [Opening "Van't Kruijs Opening"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. e3 { A00 Van't Kruijs Opening } d5 2. Bb5+? { (0.32 → -1.16) Mistake. Best move was d4. } (2. d4 e6 3. Nf3 Nf6 4. Bd3 c5 5. O-O Be7 6. dxc5 O-O) 2... Bd7? { (-1.16 → 0.32) Mistake. Best move was c6. } (2... c6) 3. Bd3? { (0.32 → -0.75) Mistake. Best move was Be2. } (3. Be2 c5 4. Nf3 Nc6 5. O-O e5 6. d4 e4 7. Ne5 cxd4 8. exd4 Bd6 9. Nxd7 Qxd7) 3... Na6? { (-0.75 → 0.56) Mistake. Best move was e5. } (3... e5 4. c4) 4. Na3? { (0.56 → -1.07) Mistake. Best move was Bxa6. } (4. Bxa6 bxa6 5. Nf3 e6 6. O-O Bd6 7. b3 Ne7 8. d4 O-O 9. Nbd2 c5 10. dxc5 Bxc5) 4... Bc6? { (-1.07 → 0.87) Mistake. Best move was e5. } (4... e5) 5. Qh5? { (0.87 → -1.02) Mistake. Best move was Nf3. } (5. Nf3 e6 6. b3 Nf6 7. Bb2 Be7 8. O-O Nb4 9. Be2 Bd7 10. c3 Nc6 11. d4 O-O) 5... Qd7? { (-1.02 → 0.79) Mistake. Best move was Nc5. } (5... Nc5 6. Nf3 Nf6 7. Qh4 Nxd3+ 8. cxd3 Qd6 9. Qg3 e6 10. b3 h5 11. Bb2 O-O-O 12. O-O) 6. Bf5? { (0.79 → -1.40) Mistake. Best move was Nf3. } (6. Nf3 Nf6 7. Qh4 Qd8 8. Be2 e6 9. Ne5 Nb8 10. O-O Be7 11. d3 Nfd7 12. Nxc6 Nxc6) 6... O-O-O?? { (-1.40 → 9.73) Blunder. Best move was e6. } (6... e6 7. Bh3 d4 8. d3 dxe3 9. Bxe3 Bb4+ 10. Kf1 Nf6 11. Qe2 Bxa3 12. bxa3 O-O 13. Nf3) 7. Bxd7+ Kxd7 8. Qf5+? { (9.74 → 8.39) Mistake. Best move was Qxf7. } (8. Qxf7 Nf6 9. Nf3 Kc8 10. Ne5 Be8 11. Qe6+ Kb8 12. d4 c6 13. O-O Nc7 14. Qh3 Nd7) 8... Ke8 9. Qd3 Bb5? { (8.45 → 15.77) Mistake. Best move was e5. } (9... e5 10. Qe2 e4 11. Nh3 Bd7 12. Nf4 c6 13. c4 Nf6 14. O-O Nc7 15. cxd5 cxd5 16. d3) 10. Qxb5+ Rd7 11. Qxb7 Rd8 12. Qxa6 Rb8 13. Qxa7 Rc8 14. Qb7 Rd8 15. Qxc7 Ra8 16. Qc6+ Kd8 17. Qxa8+ Kc7?! { (40.18 → Mate in 5) Checkmate is now unavoidable. Best move was Kd7. } (17... Kd7 18. Qxf8) 18. Qxd5?! { (Mate in 5 → 36.59) Lost forced checkmate sequence. Best move was Nb5+. } (18. Nb5+ Kb6 19. a4 d4 20. Qa7+ Kc6 21. e4 f6 22. Qc7#) 18... Kb6?! { (36.59 → Mate in 5) Checkmate is now unavoidable. Best move was Nf6. } (18... Nf6 19. Qxf7) 19. Qxf7?! { (Mate in 5 → 37.11) Lost forced checkmate sequence. Best move was Qd7. } (19. Qd7 Nf6 20. Nc4+ Ka6 21. Qc6+ Ka7 22. Qc7+ Ka6 23. Qb6#) 19... Nf6 20. Qc4 Ka5?! { (34.71 → Mate in 1) Checkmate is now unavoidable. Best move was e5. } (20... e5 21. Qb5+) 21. Qb5# { White wins by checkmate. } 1-0