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Correspondence Chess • David Slate & Chess 4.9 vs David Levy

David Slate & Chess 4.9 plays David Levy in a casual imported game of chess. David Levy won by checkmate after 51 moves. Click to replay, analyse, and discuss the game!

A03 Bird Opening: Dutch Variation

David Slate & Chess 4.9
3 Inaccuracies
4 Mistakes
2 Blunders
49 Average centipawn loss
David Levy
5 Inaccuracies
1 Mistakes
1 Blunders
30 Average centipawn loss
[Event "ACM 1979 Exhibition Game"] [Site "https://lichess.org/YZpY2cqR"] [Date "1979.10.27"] [Round "1"] [White "David Slate & Chess 4.9"] [Black "David Levy"] [Result "0-1"] [WhiteElo "?"] [BlackElo "?"] [Variant "Standard"] [TimeControl "-"] [ECO "A03"] [Opening "Bird Opening: Dutch Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. f4 { [%eval -0.16] } 1... d5 { [%eval -0.16] } { A03 Bird Opening: Dutch Variation } 2. Nf3 { [%eval -0.2] } 2... Nf6 { [%eval -0.15] } 3. e3 { [%eval -0.19] } 3... Bg4 { [%eval 0.06] } 4. b3 { [%eval 0.0] } 4... Nbd7 { [%eval 0.0] } 5. Bb2 { [%eval -0.01] } 5... c6 { [%eval 0.26] } 6. Be2 { [%eval 0.01] } 6... Bxf3 { [%eval 0.22] } 7. Bxf3 { [%eval 0.32] } 7... Qc7 { [%eval 0.31] } 8. Nc3 { [%eval 0.0] } 8... e5 { [%eval 0.0] } 9. fxe5 { [%eval 0.0] } 9... Nxe5 { [%eval 0.0] } 10. Qe2 { [%eval -0.08] } 10... Bd6 { [%eval -0.02] } 11. g3 { [%eval -0.32] } 11... Qe7 { [%eval -0.03] } 12. O-O-O?! { (-0.03 → -0.77) Inaccuracy. Best move was Bg2. } { [%eval -0.77] } (12. Bg2 O-O 13. O-O Neg4 14. Nd1 Be5 15. Bxe5 Qxe5 16. d4 Qg5 17. h3 Nh6 18. Qf2 Rae8) 12... O-O { [%eval -0.56] } 13. Bg2 { [%eval -0.92] } 13... Ba3 { [%eval -0.85] } 14. Kb1 { [%eval -1.14] } 14... Bxb2 { [%eval -1.11] } 15. Kxb2 { [%eval -1.17] } 15... b5 { [%eval -1.12] } 16. Rdf1 { [%eval -1.29] } 16... Nfd7?! { (-1.29 → -0.62) Inaccuracy. Best move was a5. } { [%eval -0.62] } (16... a5 17. d4) 17. d4 { [%eval -0.76] } 17... Nc4+ { [%eval -0.58] } 18. bxc4 { [%eval -0.7] } 18... Qb4+ { [%eval -0.74] } 19. Kc1 { [%eval -0.78] } 19... Qxc3 { [%eval -0.5] } 20. cxb5? { (-0.50 → -1.67) Mistake. Best move was cxd5. } { [%eval -1.67] } (20. cxd5 cxd5 21. Bxd5 Rac8 22. Kd1 Nb6 23. Bb3 Nc4 24. Bxc4 Rxc4 25. Qd3 Qa5 26. Rf5 Qxa2) 20... cxb5? { (-1.67 → -0.33) Mistake. Best move was Nb6. } { [%eval -0.33] } (20... Nb6) 21. Bxd5 { [%eval -0.82] } 21... Nb6?! { (-0.82 → -0.08) Inaccuracy. Best move was Rac8. } { [%eval -0.08] } (21... Rac8 22. Kd1 Nb6 23. Bb3 Nc4 24. Bxc4 Rxc4 25. Qd3 Qa5 26. Rf5 Qxa2 27. Rhf1 a6 28. Qb3) 22. Bb3 { [%eval -0.18] } 22... Nc4 { [%eval -0.1] } 23. Bxc4 { [%eval -0.25] } 23... bxc4 { [%eval -0.33] } 24. Qe1 { [%eval -0.52] } 24... Qa3+ { [%eval -0.54] } 25. Kd2 { [%eval -0.85] } 25... Rab8?! { (-0.85 → -0.29) Inaccuracy. Best move was c3+. } { [%eval -0.29] } (25... c3+ 26. Ke2 Qxa2 27. Qd1 a5 28. Qd3 a4 29. Rf5 a3 30. Qxc3 Qe6 31. Qd3 g6 32. Rff1) 26. Ke2 { [%eval -0.35] } 26... Rb2 { [%eval -0.23] } 27. Qd2 { [%eval -0.33] } 27... Rxa2 { [%eval -0.33] } 28. Rb1 { [%eval -0.57] } 28... Qe7 { [%eval -0.32] } 29. Ra1 { [%eval -0.56] } 29... Qe4 { [%eval -0.42] } 30. Rhc1?! { (-0.42 → -1.18) Inaccuracy. Best move was Rxa2. } { [%eval -1.18] } (30. Rxa2) 30... Rxa1 { [%eval -0.83] } 31. Rxa1 { [%eval -1.06] } 31... Qg2+?! { (-1.06 → -0.38) Inaccuracy. Best move was Rb8. } { [%eval -0.38] } (31... Rb8 32. Kf2 h5 33. Qc3 Rb6 34. Rf1 Rf6+ 35. Kg1 Rxf1+ 36. Kxf1 Qh1+ 37. Kf2 Qxh2+ 38. Kf3) 32. Kd1 { [%eval -0.39] } 32... Qh1+ { [%eval -0.08] } 33. Qe1 { [%eval -0.32] } 33... Qb7 { [%eval -0.27] } 34. Ke2 { [%eval -0.43] } 34... Rb8 { [%eval -0.2] } 35. Ra4 { [%eval -0.64] } 35... Rc8?! { (-0.64 → 0.00) Inaccuracy. Best move was Qd5. } { [%eval 0.0] } (35... Qd5) 36. Ra5 { [%eval 0.0] } 36... Qe4 { [%eval 0.0] } 37. Rxa7? { (0.00 → -1.71) Mistake. Best move was Kd1. } { [%eval -1.71] } (37. Kd1 Qg2 38. h4 Qb7 39. Ke2 Qe4 40. Kd1 Qb7) 37... Qxc2+ { [%eval -1.9] } 38. Qd2? { (-1.90 → -3.10) Mistake. Best move was Kf3. } { [%eval -3.1] } (38. Kf3 Qxh2 39. Ra1 Qh5+ 40. g4 Qd5+ 41. Kf2 Qg5 42. Qe2 c3 43. Qf3 c2 44. Rc1 Qa5) 38... Qe4 { [%eval -2.99] } 39. Qe1?? { (-2.99 → -7.17) Blunder. Best move was Ra2. } { [%eval -7.17] } (39. Ra2) 39... c3?? { (-7.17 → -3.56) Blunder. Best move was Rb8. } { [%eval -3.56] } (39... Rb8 40. Qc1 Qg2+ 41. Kd1 Qg1+ 42. Kd2 Qxh2+ 43. Kd1 Qh1+ 44. Kd2 Qg2+ 45. Kd1 Rb3 46. Ke1) 40. Kf2 { [%eval -3.61] } 40... h5 { [%eval -3.14] } 41. Ra5? { (-3.14 → -6.02) Mistake. Best move was Ra1. } { [%eval -6.02] } (41. Ra1 h4 42. h3 Qc2+ 43. Qe2 hxg3+ 44. Kf3 Qg6 45. Kg2 Rb8 46. Ra2 Qe4+ 47. Kxg3 Rb1) 41... h4 { [%eval -3.54] } 42. Ra1?? { (-3.54 → -11.41) Blunder. Best move was h3. } { [%eval -11.41] } (42. h3 c2) 42... h3 { [%eval -10.7] } 43. Qh1 { [%eval -15.5] } 43... Qc2+ { [%eval -11.43] } 44. Kf3 { [%eval -19.95] } 44... Rc6 { [%eval -16.47] } 45. Qb1?! { (-16.47 → Mate in 12) Checkmate is now unavoidable. Best move was Ra8+. } { [%eval #-12] } (45. Ra8+ Kh7) 45... Rf6+ { [%eval #-11] } 46. Kg4 { [%eval #-11] } 46... Qe2+ { [%eval #-10] } 47. Kh4 { [%eval #-4] } 47... Rh6+ { [%eval #-3] } 48. Kg5 { [%eval #-3] } 48... Qh5+ { [%eval #-2] } 49. Kf4 { [%eval #-2] } 49... Rf6+ { [%eval #-1] } 50. Ke4 { [%eval #-1] } 50... Qf5# { Black wins by checkmate. } 0-1