[Event "2023 Lichess Anniversary"] [Site "https://lichess.org/nqYw8Vvp"] [Date "2023.06.20"] [White "Tiranchessali"] [Black "Doubleforward"] [Result "0-1"] [UTCDate "2023.06.20"] [UTCTime "13:01:20"] [WhiteElo "1830"] [BlackElo "2016"] [WhiteRatingDiff "-52"] [BlackRatingDiff "+3"] [Variant "Standard"] [TimeControl "600+0"] [ECO "E20"] [Opening "Nimzo-Indian Defense"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 { E20 Nimzo-Indian Defense } 4. Bd2 c5 5. a3 cxd4?! { (0.00 → 0.78) Inaccuracy. Bxc3 was best. } (5... Bxc3 6. Bxc3 Ne4 7. Qd3 Nxc3 8. Qxc3 cxd4 9. Qxd4 O-O 10. Nf3) 6. axb4 dxc3 7. Bxc3 Qc7 8. Bxf6 gxf6 9. e3 Nc6 10. Nf3? { (0.60 → -0.54) Mistake. b5 was best. } (10. b5 Nb4) 10... Nxb4 11. Qb3 a5 12. Be2 Qc5 13. O-O b6 14. Rfd1 Bb7 15. Qc3 Ke7 16. Nd4 Rhg8 17. Bf3?! { (-0.80 → -1.77) Inaccuracy. g3 was best. } (17. g3 Rgd8 18. Qd2 Rac8 19. Rac1 Kf8 20. h3 Kg8 21. Kh2 Qe5 22. Bf3 d5 23. Ne2) 17... Bxf3 18. Nxf3 Qh5?! { (-1.85 → -0.76) Inaccuracy. Qc6 was best. } (18... Qc6) 19. Qd4 d5 20. cxd5?? { (-0.85 → -4.53) Blunder. Ne1 was best. } (20. Ne1 Rab8) 20... Qxf3 21. dxe6?? { (-4.52 → Mate in 1) Checkmate is now unavoidable. g3 was best. } (21. g3 Qxd5 22. Qxb6 Qc6 23. Qxc6 Nxc6 24. Rdc1 Nb4 25. Rc5 f5 26. Raxa5 Rxa5 27. Rxa5 Kf6) 21... Qxg2# { Black wins by checkmate. } 0-1