[Event "Masthanaiah chess world 1978"] [Site "https://lichess.org/qK6AJRvN"] [Date "2022.05.03"] [White "DSychev2013"] [Black "naikdevidas68"] [Result "0-1"] [UTCDate "2022.05.03"] [UTCTime "13:30:00"] [WhiteElo "1476"] [BlackElo "1915"] [WhiteRatingDiff "-3"] [BlackRatingDiff "+1"] [Variant "Standard"] [TimeControl "600+10"] [ECO "D00"] [Opening "Queen's Pawn Game: Accelerated London System"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 d5 2. Bf4 { D00 Queen's Pawn Game: Accelerated London System } e6 3. e3 Nf6 4. Be2 c5 5. c3 Nc6 6. Nf3 Qb6 7. Qc2 Ne4?! { (-0.24 → 0.75) Inaccuracy. Nh5 was best. } (7... Nh5 8. Be5 Be7 9. Qb3 c4 10. Qxb6 axb6 11. Nbd2 Nf6 12. a3) 8. b3?! { (0.75 → -0.14) Inaccuracy. Nbd2 was best. } (8. Nbd2 Nxd2 9. Qxd2 Be7 10. h4 a5 11. O-O Bd7 12. Bd3 O-O) 8... cxd4 9. cxd4? { (0.08 → -1.53) Mistake. exd4 was best. } (9. exd4) 9... Bd7? { (-1.53 → -0.10) Mistake. Bb4+ was best. } (9... Bb4+ 10. Kf1 f6 11. a3 e5 12. dxe5 fxe5 13. Bxe5 Nxe5 14. axb4 Nxf3 15. Bxf3 Bf5 16. Qb2) 10. Nbd2?? { (-0.10 → -4.25) Blunder. O-O was best. } (10. O-O Rc8 11. Qb2 Nb4 12. Rc1 Rxc1+ 13. Qxc1 Qc6 14. Qxc6 Nxc6 15. a3 Bd6 16. Bxd6 Nxd6) 10... Bb4?? { (-4.25 → 0.07) Blunder. Nxd2 was best. } (10... Nxd2 11. Kxd2 Rc8 12. Rhc1 Ba3 13. Qd3 Bxc1+ 14. Rxc1 Qa5+ 15. Kd1 Qxa2 16. Bd6 f6 17. Bc5) 11. a3?? { (0.07 → -2.17) Blunder. O-O was best. } (11. O-O) 11... Nxd2? { (-2.17 → -0.62) Mistake. Rc8 was best. } (11... Rc8 12. axb4) 12. axb4? { (-0.62 → -2.14) Mistake. Nxd2 was best. } (12. Nxd2 Rc8) 12... Nxf3+ 13. Bxf3 Nxb4 14. Qc3?? { (-1.95 → -7.07) Blunder. Qd1 was best. } (14. Qd1 O-O 15. Be2 Rfc8 16. O-O a6 17. h3 Rc3 18. Rc1 Rac8 19. Rxc3 Rxc3 20. Qb1 Bb5) 14... Rc8 15. Qd2 Nc2+ 16. Ke2 Bb5+ 17. Kd1 Nxa1 18. Qb2 Qa5 19. b4 Ba4+ 20. Ke1 Nc2+ 21. Ke2 Nxb4 22. Rc1?! { (-14.00 → Mate in 17) Checkmate is now unavoidable. Bh5 was best. } (22. Bh5 Rc2+ 23. Qxc2 Bxc2 24. Rc1 Qa2 25. Kf3 Nd3 26. Rxc2 Qxc2 27. Kg3 a5 28. Kh3 a4) 22... Bb5+?! { (Mate in 17 → -18.61) Lost forced checkmate sequence. Qb5+ was best. } (22... Qb5+ 23. Kd2 Qd3+ 24. Ke1 Rxc1+ 25. Qxc1 Nc2+ 26. Qxc2 Qxc2 27. e4 dxe4 28. Bh5 Qb1+ 29. Kd2) 23. Kd1 Rxc1+ 24. Qxc1 O-O?! { (Mate in 9 → -13.23) Lost forced checkmate sequence. Qa4+ was best. } (24... Qa4+ 25. Ke1 Nd3+ 26. Kd2 Nxc1 27. Bd1 Qa1 28. e4 Qb2+ 29. Bc2 Nb3+ 30. Kd1 Qa1+ 31. Bb1) 25. Qd2?! { (-13.23 → Mate in 6) Checkmate is now unavoidable. Qc3 was best. } (25. Qc3 Qa4+ 26. Ke1 Nd3+ 27. Kd2 Qa2+ 28. Qc2 Qa1 29. Bd1 Nxf4 30. exf4 Qxd4+ 31. Ke1 a5) 25... Qa1+ 26. Qc1 Ba4+ 27. Kd2 Qa2+ 28. Kc3 Qc4+ 29. Kd2 Qxc1+?! { (Mate in 5 → -15.49) Lost forced checkmate sequence. Qa2+ was best. } (29... Qa2+ 30. Kc3 Rc8+ 31. Bc7 Rxc7+ 32. Kxb4 Qb3+ 33. Ka5 Qb5#) 30. Kxc1 Nd3+ 31. Kd2 Nxf4 32. exf4 Rc8 33. Kd3 Bc2+ 34. Kd2 b5 35. Be2 b4 36. Bb5 b3 37. Ba4 Rc4 38. Bxb3 Bxb3 39. Kd3 Bc2+ 40. Kd2 a5 41. Kc1 a4 42. Kb2 Bb3 43. f5 Rc2+ 44. Ka3 Rxf2 45. f6 Rxf6 46. g4?! { (-26.16 → Mate in 25) Checkmate is now unavoidable. g3 was best. } (46. g3 Rf2 47. h3 Rd2 48. Kb4 Rxd4+ 49. Kc3 e5 50. g4 Rd1 51. Kb2 d4 52. Ka3 Rh1) 46... Rf3?! { (Mate in 25 → -23.83) Lost forced checkmate sequence. Rh6 was best. } (46... Rh6 47. Kb4 Rh3 48. Ka3 Rxh2 49. Kb4 Ra2 50. Kb5 Rd2 51. Kc5 Rd3 52. g5 Rd2 53. Kb4) 47. g5 Bd1+ 48. Ka2 a3 49. g6 Rb3 50. h4 Rd3 51. h5 fxg6 52. hxg6 hxg6 53. Kb1 Bb3 54. Ka1 Rd1# { Black wins by checkmate. } 0-1