lichess dev

[Event "Open Arena"] [Site "http://chess-academy.net/wXyRWwDW"] [Date "2021.01.13"] [Round "-"] [White "dragutraisa"] [Black "Stefansah"] [Result "1-0"] [UTCDate "2021.01.13"] [UTCTime "17:20:20"] [WhiteElo "2353"] [BlackElo "982"] [WhiteRatingDiff "+0"] [BlackRatingDiff "+0"] [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. Nc3?! { (0.73 → 0.23) Inaccuracy. Best move was d4. } (2. d4 Nf6 3. Nc3 e6 4. Nf3 Be7 5. Bd3 Nbd7 6. e5 dxe5) 2... e6?! { (0.23 → 0.75) Inaccuracy. Best move was c5. } (2... c5 3. Nf3 Nc6 4. d4 cxd4 5. Nxd4 e5 6. Nxc6 bxc6 7. Bc4) 3. d4 Nc6 4. Nf3 b5? { (0.40 → 3.20) Mistake. Best move was Nf6. } (4... Nf6) 5. Bxb5 a6?? { (2.66 → 7.94) Blunder. Best move was Bd7. } (5... Bd7 6. d5 exd5 7. exd5 Ne5 8. Nd4 a6 9. Bxd7+ Qxd7 10. f4 Ng6 11. g4 Be7 12. O-O) 6. Bxc6+ Ke7? { (7.76 → 12.47) Mistake. Best move was Bd7. } (6... Bd7 7. Bxa8 Qxa8 8. O-O h6 9. Qd3 g5 10. e5 Bg7 11. Re1 Ne7 12. Ne4 dxe5 13. Nxe5) 7. Bxa8 Qd7 8. d5 exd5 9. Nxd5+ Kd8 10. Nd4 Qg4?! { (12.83 → Mate in 17) Checkmate is now unavoidable. Best move was Ne7. } (10... Ne7 11. O-O) 11. Nc6+ Ke8 12. Nxc7+ Kd7 13. Qxg4+ Kxc7 14. Qf4 Kb6?! { (30.85 → Mate in 3) Checkmate is now unavoidable. Best move was Be7. } (14... Be7 15. Qxf7) 15. Qxf7?! { (Mate in 3 → Mate in 5) Not the best checkmate sequence. Best move was Qe3+. } (15. Qe3+ Kb5 16. a4+ Kc4 17. b3#) 15... Nh6 16. Qa7+?! { (Mate in 2 → Mate in 2) Not the best checkmate sequence. Best move was Be3+. } (16. Be3+ Kb5 17. a4#) 16... Kb5 17. Nd4+?! { (Mate in 2 → Mate in 2) Not the best checkmate sequence. Best move was a4+. } (17. a4+ Kc4 18. Qd4#) 17... Ka4 18. Qb6 Be7 19. b3# { White wins by checkmate. } 1-0