[Event "London"] [Site "London"] [Date "1987.??.??"] [Round "?"] [White "Hebden, Mark"] [Black "Nunn, John DM"] [Result "0-1"] [GameId "aZzaiUPl"] [WhiteElo "2515"] [BlackElo "2585"] [Variant "Standard"] [TimeControl "-"] [ECO "C31"] [Opening "King's Gambit Declined: Falkbeer Countergambit, Nimzowitsch-Marshall Countergambit"] [Termination "Unknown"] [Annotator "lichess.org"] 1. e4 { [%eval 0.12] } 1... e5 { [%eval 0.37] } 2. f4?! { (0.37 → -0.46) Inaccuracy. Nf3 was best. } { [%eval -0.46] } (2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5) 2... d5 { [%eval -0.07] } 3. exd5 { [%eval -0.24] } 3... c6 { [%eval 0.24] } { C31 King's Gambit Declined: Falkbeer Countergambit, Nimzowitsch-Marshall Countergambit } 4. Nc3 { [%eval 0.01] } 4... exf4 { [%eval 0.0] } 5. Nf3 { [%eval 0.0] } 5... Bd6 { [%eval 0.34] } 6. d4 { [%eval -0.02] } 6... Ne7 { [%eval 0.24] } 7. Bc4?! { (0.24 → -0.32) Inaccuracy. Bd3 was best. } { [%eval -0.32] } (7. Bd3 O-O 8. O-O Nxd5 9. Nxd5 cxd5 10. Ne1 Qb6 11. c3 Nd7) 7... cxd5 { [%eval -0.12] } 8. Bxd5 { [%eval -0.2] } 8... O-O { [%eval 0.04] } 9. O-O { [%eval -0.07] } 9... Nbc6 { [%eval 0.37] } 10. Bb3 { [%eval -0.15] } 10... Bg4 { [%eval 0.36] } 11. Ne4 { [%eval 0.08] } 11... Bc7 { [%eval 0.48] } 12. c3 { [%eval 0.32] } 12... Ng6 { [%eval 0.37] } 13. Nf2 { [%eval 0.26] } 13... Bf5 { [%eval 0.3] } 14. Nd3 { [%eval 0.0] } 14... Na5 { [%eval 0.05] } 15. Nfe1 { [%eval 0.0] } 15... Nxb3 { [%eval 0.17] } 16. axb3 { [%eval 0.12] } 16... Qh4?! { (0.12 → 0.82) Inaccuracy. Re8 was best. } { [%eval 0.82] } (16... Re8 17. Nxf4) 17. Qf3 { [%eval 0.77] } 17... Rae8 { [%eval 0.74] } 18. Bxf4?! { (0.74 → 0.00) Inaccuracy. Qxb7 was best. } { [%eval 0.0] } (18. Qxb7 Re7 19. Qf3 Rfe8 20. Rxa7 Be4 21. Qd1 h6 22. Nf2 Ba8 23. Nf3 Qf6 24. b4 Qb6) 18... Nxf4 { [%eval 0.0] } 19. Nxf4 { [%eval 0.0] } 19... Be4 { [%eval 0.0] } 20. Qh5 { [%eval -0.15] } 20... Qd8 { [%eval -0.09] } 21. g3 { [%eval 0.0] } 21... a6 { [%eval 0.0] } 22. b4 { [%eval 0.07] } 22... f5 { [%eval 0.32] } 23. Neg2 { [%eval 0.15] } 23... Rf6 { [%eval 0.69] } 24. Rae1 { [%eval 0.34] } 24... Rh6 { [%eval 0.35] } 25. Qe2 { [%eval 0.3] } 25... g5 { [%eval 0.73] } 26. Nd3 { [%eval 0.56] } 26... Bc6 { [%eval 0.69] } 27. Qf2 { [%eval 0.7] } 27... Rf8 { [%eval 0.69] } 28. c4 { [%eval 0.35] } 28... f4?! { (0.35 → 1.00) Inaccuracy. Bxg2 was best. } { [%eval 1.0] } (28... Bxg2 29. Kxg2) 29. gxf4?? { (1.00 → -5.10) Blunder. d5 was best. } { [%eval -5.1] } (29. d5 Ba4 30. gxf4 Bb3 31. Qd4 b5 32. Ne5 bxc4 33. Kh1 Qf6 34. Qc3 Qg7 35. Rf3 Rhf6) 29... gxf4 { [%eval -4.2] } 30. Ndxf4 { [%eval -5.04] } 30... Bxg2 { [%eval -4.71] } 31. Qxg2+ { [%eval -4.95] } 31... Kh8 { [%eval -4.57] } 32. Ne6?! { (-4.57 → -7.00) Inaccuracy. Nh5 was best. } { [%eval -7.0] } (32. Nh5 Rg8 33. Ng3 Qxd4+ 34. Qf2 Bxg3 35. Qxd4+ Be5+ 36. Kf2 Bxd4+ 37. Kf3 Bxb2 38. b5 Rh3+) 32... Bxh2+ { [%eval -6.92] } 33. Kh1?! { (-6.92 → -55.09) Inaccuracy. Qxh2 was best. } { [%eval -55.09] } (33. Qxh2 Rg8+ 34. Qg2 Rxg2+ 35. Kxg2 Qg8+ 36. Kf3 Rxe6 37. Rxe6 Qxe6 38. Rf2 Qxc4 39. Rd2 Qxb4) 33... Be5+ { [%eval -53.29] } 34. Kg1 { [%eval -13.45] } 34... Bxd4+ { [%eval -8.36] } 35. Rf2? { (-8.36 → Mate in 9) Checkmate is now unavoidable. Nxd4 was best. } { [%eval #-9] } (35. Nxd4 Qxd4+ 36. Rf2 Rg6 37. Kf1 Qxc4+ 38. Re2 Re8 39. Qxg6 hxg6 40. b3 Qd3 41. Ke1 Qb1+) 35... Bxf2+ { [%eval #-8] } 36. Qxf2 { [%eval #-8] } 36... Rxe6?! { (Mate in 8 → -54.23) Lost forced checkmate sequence. Rg8+ was best. } { [%eval -54.23] } { Black wins. } (36... Rg8+ 37. Qg2 Qd2 38. Qxg8+ Kxg8 39. Nf4 Qxe1+ 40. Kg2 Qe3 41. Ne2 Rh3 42. Kf1 Rh2 43. Ke1) 0-1