[Event "Levy - Chess 4.7 Match"] [Site "Toronto CAN"] [Date "1978.08.27"] [Round "2"] [White "CHESS 4.7 (Computer)"] [Black "David Neil Lawrence Levy"] [Result "0-1"] [WhiteElo "?"] [BlackElo "2320"] [Variant "Standard"] [TimeControl "-"] [ECO "B23"] [Opening "Sicilian Defense: Grand Prix Attack"] [Termination "Unknown"] [Annotator "lichess.org"] 1. Nc3 c5 2. e4 Nc6 3. f4?! { (0.41 → -0.22) Inaccuracy. Nf3 was best. } { B23 Sicilian Defense: Grand Prix Attack } (3. Nf3 e5 4. Bc4 Be7 5. d3 Nf6 6. Nd2 d6 7. Nf1 Bg4) 3... a6 4. Nf3 g6 5. d4 cxd4 6. Nxd4 Bg7 7. Be3 d6 8. Nxc6 bxc6 9. Be2 Rb8 10. Qc1 Qa5 11. Bd2 Qb6 12. Na4 Qa7 13. Nc3?! { (-0.55 → -1.14) Inaccuracy. Bf3 was best. } (13. Bf3 Nf6) 13... Bd4 14. Nd1 Nf6 15. c3 Bb6 16. Qc2?! { (-1.52 → -2.39) Inaccuracy. Bd3 was best. } (16. Bd3 a5 17. b3 O-O 18. Be3 Ba6 19. Qd2 Bxd3 20. Qxd3 d5 21. e5 Ne4 22. O-O Bxe3+) 16... Ng4? { (-2.39 → -0.98) Mistake. d5 was best. } (16... d5) 17. Qa4 O-O 18. Bxg4 Bxg4 19. Qxc6?! { (-2.23 → -3.55) Inaccuracy. f5 was best. } (19. f5 d5) 19... Bxd1 20. Kxd1 Be3 21. b3 Bxd2 22. Kxd2 Rbc8 23. Qa4?! { (-2.34 → -3.59) Inaccuracy. Qd5 was best. } (23. Qd5 Qf2+ 24. Kd3 Qxg2 25. c4 Qf3+ 26. Kc2 Qxf4 27. h4 Rc5 28. Qd3 h5 29. Raf1 Qg4) 23... Qf2+ 24. Kd3 Qxg2 25. Qd4? { (-3.53 → -6.05) Mistake. Rac1 was best. } (25. Rac1 Qf3+ 26. Kd2 Rxc3 27. Rxc3 Qg2+ 28. Ke3 Qxh1 29. f5 e6 30. Rc2 Qg1+ 31. Rf2 Qc1+) 25... Qf3+?? { (-6.05 → -2.49) Blunder. e5 was best. } (25... e5 26. Rag1 Qf3+ 27. Qe3 Rxc3+ 28. Kxc3 Qxe3+ 29. Kb2 exf4 30. Rc1 f3 31. e5 f2 32. Rhd1) 26. Kc2 Qe2+ 27. Kc1 e5 28. fxe5 dxe5 29. Qxe5?? { (-2.78 → Mate in 11) Checkmate is now unavoidable. Qd2 was best. } (29. Qd2 Qxe4 30. Re1 Qf5 31. Kb2 e4 32. Rad1 Rfe8 33. Qd4 Qf4 34. Re2 Qe5 35. Qxe5 Rxe5) 29... Rfe8?? { (Mate in 11 → -6.06) Lost forced checkmate sequence. Rfd8 was best. } (29... Rfd8 30. Re1 Qxe1+ 31. Kb2 Rd2+ 32. Ka3 Qxa1 33. Kb4 Rxa2 34. Qc5 Rxc5 35. Kxc5 Qxc3+ 36. Kb6) 30. Qg3 Rxe4 31. Qh3?? { (-6.22 → Mate in 12) Checkmate is now unavoidable. Rb1 was best. } (31. Rb1 Re3 32. c4 Rxg3 33. hxg3 Qxa2 34. Rh2 Qa3+ 35. Kd1 Qc5 36. Re2 a5 37. Ra1 Rb8) 31... Rd8 32. Qf1 Qd2+ 33. Kb1 Re2 34. Qxe2 Qxe2 35. Re1 Qxe1+ 36. Kb2 Rd2+ 37. Ka3 Qxa1 { Black wins. } 0-1