[Event "Masthanaiah chess world 1978"] [Site "https://lichess.org/6usxGpe9"] [Date "2021.10.18"] [White "samiksanthosh_09"] [Black "Ronghaka"] [Result "0-1"] [UTCDate "2021.10.18"] [UTCTime "14:13:07"] [WhiteElo "1389"] [BlackElo "1500"] [WhiteRatingDiff "-14"] [BlackRatingDiff "+183"] [Variant "Standard"] [TimeControl "1500+10"] [ECO "C41"] [Opening "Philidor Defense"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 e5 2. Nf3 d6?! { (0.17 → 0.85) Inaccuracy. Nc6 was best. } (2... Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 Nd6 6. Nxe5 Be7 7. Bf1) 3. Bc4?! { (0.85 → 0.25) Inaccuracy. d4 was best. } { C41 Philidor Defense } (3. d4 exd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Bb5 Bd7 7. O-O Be7) 3... Nd7 4. O-O h6 5. d4 Be7?? { (0.78 → 2.78) Blunder. Ngf6 was best. } (5... Ngf6 6. Re1 Be7 7. Bf1 O-O 8. c4 Nh7 9. Nc3 Ng5 10. Be3) 6. dxe5 dxe5?? { (2.66 → Mate in 10) Checkmate is now unavoidable. Nxe5 was best. } (6... Nxe5 7. Nxe5 dxe5 8. Qh5 g6 9. Qxe5 Nf6 10. Qg3 c6 11. h3) 7. Nc3?? { (Mate in 10 → 0.74) Lost forced checkmate sequence. Qd5 was best. } (7. Qd5 Ndf6 8. Qxf7+ Kd7 9. Nxe5+ Kd6 10. Rd1+ Kc5 11. Be3+ Kb4 12. a3+ Ka4 13. b3+ Ka5) 7... c6 8. Be3 Qc7?! { (0.63 → 1.30) Inaccuracy. Ngf6 was best. } (8... Ngf6 9. a4) 9. Qd2? { (1.30 → -0.09) Mistake. Nd5 was best. } { White offers draw } (9. Nd5 Qd8) 9... Bf6? { (-0.09 → 1.31) Mistake. Ngf6 was best. } (9... Ngf6 10. a4) 10. Rad1 Ne7 11. a4 O-O?! { (0.95 → 1.54) Inaccuracy. Ng6 was best. } (11... Ng6 12. Ne2 O-O 13. Ng3 Rd8 14. Qd6 Qxd6 15. Rxd6 Ndf8 16. Rxd8 Bxd8 17. Nf5 b6 18. Re1) 12. b4?! { (1.54 → 0.96) Inaccuracy. Qd6 was best. } (12. Qd6 Qd8 13. b4 Ng6 14. a5 Nb8 15. Na4 Bg4 16. Qxd8 Bxd8 17. h3 Bxf3 18. gxf3 Bg5) 12... b6? { (0.96 → 2.50) Mistake. Ng6 was best. } (12... Ng6) 13. b5?? { (2.50 → 0.16) Blunder. Qd6 was best. } (13. Qd6 Qb7 14. b5 cxb5 15. axb5 Qb8 16. Bb3 Re8 17. Qxb8 Rxb8 18. Nd2 Nf8 19. Ra1 Rb7) 13... Nc5? { (0.16 → 1.71) Mistake. cxb5 was best. } (13... cxb5 14. Bxb5) 14. Bxc5 bxc5 15. bxc6 Qxc6 16. Bd5 Nxd5 17. Nxd5?! { (1.40 → 0.37) Inaccuracy. exd5 was best. } (17. exd5) 17... Bg4?? { (0.37 → 4.68) Blunder. Qxa4 was best. } (17... Qxa4 18. Nxf6+ gxf6 19. Qxh6 Qxe4 20. Qxf6 Qf4 21. Qxe5 Qxe5 22. Nxe5 a5 23. Ra1 a4 24. Ra3) 18. Nxf6+?? { (4.68 → -0.32) Blunder. Nxe5 was best. } (18. Nxe5 Qe6) 18... Qxf6 19. Qe3 Rac8 20. Rd5 Rfe8 21. Rxc5?? { (0.26 → -1.74) Blunder. h3 was best. } (21. h3 Bxf3 22. Qxf3 Qxf3 23. gxf3 Rb8 24. Rxc5 Rbc8 25. Rxc8 Rxc8 26. Rb1 Rxc2 27. Rb7 a6) 21... Rxc5 22. Qxc5 Bxf3 23. gxf3 Qxf3 24. Qxa7? { (-2.16 → -3.92) Mistake. Qe3 was best. } (24. Qe3 Qg4+) 24... Qg4+ 25. Kh1 Qxe4+?! { (-4.00 → -2.52) Inaccuracy. Qf3+ was best. } (25... Qf3+ 26. Kg1 Re6 27. Re1 Rg6+ 28. Kf1 Rg2 29. Qe3 Qg4 30. Qg3 Rxg3 31. hxg3 Qd7 32. a5) 26. Kg1?! { (-2.52 → -3.82) Inaccuracy. f3 was best. } (26. f3 Qxc2 27. Qd7 Re6 28. Qd8+ Kh7 29. Qd1 Qc4 30. Re1 Qc3 31. Qe2 f5 32. Qf1 Rb6) 26... Re6 27. Qb8+?! { (-3.72 → -4.80) Inaccuracy. f3 was best. } (27. f3) 27... Kh7 28. Qb1?? { (-4.94 → Mate in 1) Checkmate is now unavoidable. Qb3 was best. } (28. Qb3 Rg6+ 29. Qg3 f5 30. Qxg6+ Kxg6 31. a5 Qa4 32. Rb1 Qxa5 33. c4 e4 34. Kg2 Kg5) 28... Rg6# { Black wins by checkmate. } 0-1