Chess puzzle (Crushing)
Moves: 1. e4 c6 2. Nf3 d5 3. e5 Bg4 4. d4 e6 5. h3 Bh5 6. Nc3 Bb4 7. Bd2 Ne7 8. a3
Bxc3 9. Bxc3 O-O 10. Be2 Nd7 11. O-O Bg6 12. Nh4 Nf5 13. Nxg6 fxg6 14. Bb4 Rf7
15. Qd3 b5 16. a4 a5 17. Bd2 b4 18. b3 c5 19. dxc5 Nxc5 20. Qf3 Ne4 21. Be3 Rc8
22. Bd3 Nfg3 23. Qxf7+ Kxf7 24. fxg3+ Kg8 25. Kh2 Ng5 26. h4 Nf7 27. Bd4 Nh6
28. Rf4 g5 29. hxg5 Qxg5 30. Raf1 Ng4+ 31. Rxg4 Qxg4 32. Rf4 Qh5+ 33. Rh4 Qf7
34. Bxh7+ Kf8 35. Rf4 Ke7 36. Rxf7+ Kxf7 37. Bb6 Rh8 38. Bxa5 Rxh7+ 39. Kg1 Rh5
40. Bxb4 Rxe5 41. a5 d4 42. a6 Rb5 *
Position (FEN): 8/5kp1/P3p3/1r6/1B1p4/1P4P1/2P3P1/6K1 w - - 1 43
White to move.
Themes: Advanced Pawn Endgame  
Puzzle rating: 1236
Best move: a7