[Event "Masthanaiah chess world 1978"] [Site "https://lichess.org/qX1AjpXn"] [Date "2021.04.24"] [White "ariejawatimur"] [Black "DipjyotiBorah"] [Result "0-1"] [UTCDate "2021.04.24"] [UTCTime "14:24:30"] [WhiteElo "1500"] [BlackElo "1750"] [WhiteRatingDiff "-128"] [BlackRatingDiff "+15"] [Variant "Standard"] [TimeControl "1500+2"] [ECO "C42"] [Opening "Petrov's Defense: Three Knights Game"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 e5 2. Nf3 Nf6 3. Nc3 { C42 Petrov's Defense: Three Knights Game } Bc5?! { (0.20 → 0.95) Inaccuracy. Nc6 was best. } (3... Nc6 4. Bb5 Bd6 5. O-O O-O 6. d3 Re8 7. Ba4 a6 8. Bg5) 4. Nxe5 Nc6?! { (0.99 → 2.16) Inaccuracy. Bd4 was best. } (4... Bd4 5. Nf3 Bxc3 6. dxc3 Nxe4 7. Bd3 Nf6 8. Qe2+ Qe7 9. Qxe7+) 5. Nf3?! { (2.16 → 0.98) Inaccuracy. Nxc6 was best. } (5. Nxc6 dxc6 6. h3 Bd4 7. d3 Be6 8. g3 Qe7 9. Bg2 O-O-O) 5... Qe7 6. d3? { (1.63 → 0.48) Mistake. Bd3 was best. } (6. Bd3 O-O 7. O-O Nd4 8. h3 Re8 9. Bc4 c6 10. a4 d5) 6... Ng4?? { (0.48 → 3.70) Blunder. d5 was best. } (6... d5 7. Bg5 Bb4 8. Be2 dxe4 9. dxe4 Bxc3+ 10. bxc3 h6 11. Bxf6) 7. d4 Bb4 8. Bd3 d5 9. e5? { (3.91 → 1.99) Mistake. O-O was best. } (9. O-O Bxc3 10. bxc3 dxe4 11. Bxe4 O-O 12. Re1 Qd8 13. Bg5 Nf6 14. Bd3 h6 15. Bh4 Be6) 9... f6? { (1.99 → 3.64) Mistake. Bxc3+ was best. } (9... Bxc3+ 10. bxc3 f6 11. h3 fxe5 12. hxg4 e4 13. Bg5 Qf7 14. Be2 O-O 15. Nh2 Qxf2+ 16. Kd2) 10. O-O Bxc3 11. bxc3? { (3.55 → 1.66) Mistake. exf6 was best. } (11. exf6 Qxf6 12. bxc3 O-O 13. Rb1 Qd6 14. h3 Nf6 15. Rb3 Qd8 16. Ba3 Re8 17. Re1 Na5) 11... O-O? { (1.66 → 3.45) Mistake. fxe5 was best. } (11... fxe5 12. Nxe5) 12. h3 fxe5 13. hxg4 e4 14. Re1?? { (2.37 → -0.12) Blunder. Nh2 was best. } (14. Nh2 exd3) 14... Qf7?? { (-0.12 → 2.41) Blunder. Bxg4 was best. } (14... Bxg4 15. Rb1 Qe8 16. Qd2 Bxf3 17. gxf3 Qg6+ 18. Qg5 Qxg5+ 19. Bxg5 exd3 20. Rxb7 h6 21. Rxc7) 15. Be2 Bxg4 16. Nh2 Qxf2+ 17. Kh1 Bxe2 18. Rxe2 Qh4 19. Be3 Rf5 20. Kg1?? { (2.52 → -1.06) Blunder. Qe1 was best. } (20. Qe1 Qxe1+ 21. Raxe1 Na5 22. Ng4 Nc4 23. Ne5 Nxe5 24. dxe5 Rxe5 25. c4 c6 26. Bd4 Rg5) 20... Rh5 21. Nf1?? { (-0.96 → Mate in 3) Checkmate is now unavoidable. g3 was best. } (21. g3) 21... Rf8 22. Ng3 Qh2# { Black wins by checkmate. } 0-1