Chess puzzle (Crushing)
Moves: 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 b6 6. Bd3 Bb7 7. O-O O-O 8. b4
Nc6 9. b5 Nb4 10. a4 Nxd3 11. Qxd3 dxc4 12. Qe2 Nd7 13. Ba3 f5 14. Nd2 Nf6 15.
Nxc4 Nd5 16. Nxd5 Bxd5 17. Rad1 Bb7 18. Ne5 Qd5 19. f3 Rfe8 20. Qc4 Bxe5 21.
Qxd5+ Bxd5 22. dxe5 e6 23. Rfe1 c6 24. e4 Bb3 25. Rb1 Bxa4 26. bxc6 Bxc6 27.
Rec1 Rac8 28. exf5 exf5 29. f4 Be4 30. Rb4 Rxc1+ 31. Bxc1 Rc8 32. Be3 Rc2 33.
e6 Rxg2+ 34. Kf1 Kf8 35. Rxe4 fxe4 36. Kxg2 Ke7 37. Kg3 Kxe6 38. Kg4 h6 39. h4
Kf6 40. h5 gxh5+ 41. Kxh5 Kf5 42. Kxh6 a5 43. Bxb6 *
Position (FEN): 8/8/1B5K/p4k2/4pP2/8/8/8 b - - 0 43
Black to move.
Themes: Defensive Move Bishop Endgame, Endgame  
Puzzle rating: 1490
Best move: a4