Mate in 78

1. Bf1 Kg6 2. Bd3+!! Kf6! 3. Bb1 Kf7! 4. Bh7! Kf6 5. Kb1 Kf7! 6. Kc1 Kf6 7. Kd2! Kf7! 8. Ke3! Kf6 9. Kf4! Kf7! 10. Kg5! Ne6+! 11. Kh5 Ng7+! 12. Kh6! Ne6! 13. Bf5 Nc5 14. Bh3 Ke7! 15. Kg5 Kd6! 16. Kf5! Nb3 17. Bg2 Na5 18. Bg7! Nc6 19. Bf8+! Kc7 20. Bc5 Kd7! 21. Ke4! Kc8! 22. Bg1 Kc7! 23. Kd5! Na5 24. Bf2 Nb7! 25. Be4! Nd8! 26. Bg3+ Kb6! 27. Kc4! Nb7! 28. Kb4! Nd8! 29. Bf2+! Kc7! 30. Kb5! Kd6! 31. Bg3+ Ke6! 32. Bc2! Nf7! 33. Bb3+! Kf6! 34. Bh4+! Kg6! 35. Kc5! Ng5! 36. Bc2+! Kh5! 37. Bg3! Kg4! 38. Bd6! Kf3! 39. Kd4! Ne6+ 40. Ke5! Nf4! 41. Be4+! Kg4! 42. Bc7! Kg5! 43. Bc2! Ng6+! 44. Kd5! Nf4+! 45. Ke4! Nh5! 46. Ke5! Nf4! 47. Bd8+! Kg4! 48. Ke4! Ng6! 49. Bd1+! Kg3! 50. Ke3! Kh3! Stalemate trap 50 moves rule 51. Be2 Kg3! 52. Bf6! Kh3! 53. Bb5! Kg4! 54. Bd7+! Kh5! 55. Be8! Kh6! 56. Ke4! Nf8 57. Kf5! Nh7 58. Bb2! Stalemate trap 58... Nf8! 59. Kf6! Nh7+! 60. Kf7! Kg5 61. Kg7! Nf6 62. Bxf6+! Kf5! 63. Bf7 Ke4 64. Kg6! Ke3 65. Bd5 Kd2 66. Bc4! Kc1 67. Bc3 Kb1 68. Bb4 Ka1 69. Ba3 Kb1 70. Bb3! Ka1 71. Kf5 Kb1 72. Ke4 Ka1 73. Bc4 Kb1 74. Kd3! Ka1 75. Kc3! Stalemate trap 75... Kb1 76. Kb3! Stalemate trap 76... Ka1 77. Bb2+! Stalemate trap 77... Kb1 78. Bd3#! Stalemate trap Mate 1-0