lichess dev

[Event "Ariadna Arena"] [Site "http://chess-academy.net/k2OWwzyQ"] [Date "2025.02.22"] [Round "-"] [White "DAVID777"] [Black "Katherina"] [Result "0-1"] [UTCDate "2025.02.22"] [UTCTime "10:37:49"] [WhiteElo "1295"] [BlackElo "1467"] [WhiteRatingDiff "-41"] [BlackRatingDiff "+35"] [Variant "Standard"] [TimeControl "420+2"] [ECO "A06"] [Opening "Réti Opening"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. Nf3 d5 { A06 Réti Opening } 2. Ne5?! { (0.44 → -0.50) Inaccuracy. Best move was d4. } (2. d4 Bf5 3. c4 e6 4. Nc3 Nc6 5. cxd5 exd5 6. Bg5 Be7) 2... f6 3. Ng4?? { (-0.12 → -5.20) Blunder. Best move was Nf3. } (3. Nf3 e5) 3... Qd6?? { (-5.20 → -0.17) Blunder. Best move was Bxg4. } (3... Bxg4 4. c3 Qd7 5. f3 Bh5 6. e3 c5 7. d4 e6 8. Be2 Bg6 9. c4 cxd4 10. exd4) 4. Nc3?? { (-0.17 → -5.20) Blunder. Best move was e4. } (4. e4 d4 5. f3 e5 6. Bc4 Nc6 7. Nf2 Be6 8. Bxe6 Qxe6 9. d3 O-O-O 10. Nd2 Kb8) 4... Qe6?? { (-5.20 → -0.24) Blunder. Best move was Bxg4. } (4... Bxg4) 5. Nb5? { (-0.24 → -2.40) Mistake. Best move was h3. } (5. h3 d4) 5... a6?? { (-2.40 → 10.29) Blunder. Best move was Qd7. } (5... Qd7) 6. Nxc7+ Kd7 7. Nxa8?? { (10.81 → 4.77) Blunder. Best move was Nxe6. } (7. Nxe6 Kxe6) 7... Qxg4 8. Nb6+ Kc6 9. c4?? { (5.21 → -0.16) Blunder. Best move was h3. } (9. h3) 9... Kxb6 10. Qb3+? { (0.62 → -0.67) Mistake. Best move was cxd5. } (10. cxd5) 10... Kc7? { (-0.67 → 0.94) Mistake. Best move was Ka7. } (10... Ka7 11. cxd5) 11. e4?? { (0.94 → -3.40) Blunder. Best move was cxd5. } (11. cxd5 e6) 11... Qxe4+ 12. Kd1 Qg4+ 13. Kc2? { (-3.06 → -5.10) Mistake. Best move was Ke1. } (13. Ke1) 13... Qe4+? { (-5.10 → -2.57) Mistake. Best move was Bf5+. } (13... Bf5+) 14. Bd3?? { (-2.57 → -5.94) Blunder. Best move was d3. } (14. d3 dxc4) 14... Qxg2 15. Re1 Qxf2 16. Re6?? { (-5.28 → -11.13) Blunder. Best move was Rf1. } (16. Rf1 Qc5) 16... Qd4?? { (-11.13 → -5.95) Blunder. Best move was Bxe6. } (16... Bxe6 17. cxd5) 17. h4?? { (-5.95 → -12.58) Blunder. Best move was Re3. } (17. Re3 dxc4) 17... Bxe6 18. cxd5 Bxd5 19. Bc4 Bxc4 20. Qc3 Qe4+ 21. Qd3?! { (-12.38 → Mate in 3) Checkmate is now unavoidable. Best move was d3. } (21. d3 Qxd3+ 22. Qxd3 Bxd3+ 23. Kxd3 e5 24. Bd2 Ne7 25. Rf1 Nd7 26. Kc2 Nc5 27. h5 Nd5) 21... Bxd3+ 22. Kd1 Qf3+?! { (Mate in 1 → Mate in 1) Not the best checkmate sequence. Best move was Qh1#. } (22... Qh1#) 23. Ke1 Qe2# { Black wins by checkmate. } 0-1