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Stockfish 9+wasm
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C20 Bishop's Opening: Boi Variation
1e4e52Bc4Bc53Nc3Nc64d3d65Nf3Nf66O-OO-O7Bg5Bg48Bxf6Bxf39Bxd8Bxd110Bxc7Bxc211Bxd6Bxd312Bxf8Bxf113Bxf1Bxf814Rd1Rd815Rxd8Nxd816Bc4g617Nd5Ne618Nf6+Kg719Ne8+Kg820Bxe6fxe621Nf6+Kg722Ne8+Kf723Nc7Bd624Nb5Ke725Nxd6Kxd626Kf1Kc527Ke2Kb428Kd2Kc429Kc2Kb430Kb1Kb531b3Kb432Kb2Ka533a3Kb534Kc3a535a4+Kc636b4axb4+37Kxb4b538axb5+Kb639g4h540gxh5gxh541h4Kc742Ka5Kb743f3Ka744b6+Kb745Kb5Kc846Kc6Kb847b7Ka748Kc7Ka649b8=QKa550Qb6+Ka451Kc6Ka352Kc5Ka253Kc4Ka154Kc3Ka255Qb2#
1-0
Checkmate, White is victorious
FEN
PGN
[Event "Casual Correspondence game"] [Site "http://chess-academy.net/27As0MVZ"] [Date "2023.02.10"] [Round "-"] [White "Leon"] [Black "Alex_Voronov"] [Result "1-0"] [UTCDate "2023.02.10"] [UTCTime "12:57:23"] [WhiteElo "1500"] [BlackElo "1500"] [Variant "Standard"] [TimeControl "-"] [ECO "C20"] [Opening "Bishop's Opening: Boi Variation"] [Termination "Normal"] [Annotator "chess-academy.net"] 1. e4 e5 2. Bc4 Bc5 { C20 Bishop's Opening: Boi Variation } 3. Nc3 Nc6 4. d3 d6 5. Nf3 Nf6 6. O-O O-O 7. Bg5 Bg4 8. Bxf6 Bxf3 9. Bxd8 Bxd1 10. Bxc7 Bxc2 11. Bxd6 Bxd3 12. Bxf8 Bxf1 13. Bxf1 Bxf8 14. Rd1 Rd8 15. Rxd8 Nxd8 16. Bc4 g6 17. Nd5 Ne6 18. Nf6+ Kg7 19. Ne8+ Kg8 20. Bxe6 fxe6 21. Nf6+ Kg7 22. Ne8+ Kf7 23. Nc7 Bd6 24. Nb5 Ke7 25. Nxd6 Kxd6 26. Kf1 Kc5 27. Ke2 Kb4 28. Kd2 Kc4 29. Kc2 Kb4 30. Kb1 Kb5 31. b3 Kb4 32. Kb2 Ka5 33. a3 Kb5 34. Kc3 a5 35. a4+ Kc6 36. b4 axb4+ 37. Kxb4 b5 38. axb5+ Kb6 39. g4 h5 40. gxh5 gxh5 41. h4 Kc7 42. Ka5 Kb7 43. f3 Ka7 44. b6+ Kb7 45. Kb5 Kc8 46. Kc6 Kb8 47. b7 Ka7 48. Kc7 Ka6 49. b8=Q Ka5 50. Qb6+ Ka4 51. Kc6 Ka3 52. Kc5 Ka2 53. Kc4 Ka1 54. Kc3 Ka2 55. Qb2# { White wins by checkmate. } 1-0
               00000Alex_Voronov0
               11111Leon5
Computer analysis Move times Crosstable FEN & PGN