Chess puzzle (Crushing)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. O-O h6 6. Nbd2 O-O 7. Re1 Re8 8.
Nf1 d5 9. exd5 Nxd5 10. Ng3 Bg4 11. h3 Bxf3 12. Qxf3 Nf6 13. Nf5 Nd4 14. Nxd4
e4 15. dxe4 Qxd4 16. Bb3 Rxe4 17. Rxe4 Qxe4 18. Qc3 Qf5 19. Be3 Ne4 20. Qe1
Bxe3 21. Qxe3 Re8 22. Re1 Nd6 23. Qd2 Rxe1+ 24. Qxe1 Qe4 25. Qxe4 Nxe4 26. f3
Nc5 27. Kf2 Nxb3 28. axb3 Kf8 29. Ke3 Ke7 30. Kd4 Kd6 31. b4 b5 32. g4 g5 33.
b3 a6 34. Ke4 Ke6 35. c3 c6 36. f4 f6 37. f5+ Kd7 38. Kd4 Kd6 39. c4 Kd7 40.
Kc5 Kc7 41. Kd4 Kd6 42. c5+ Kc7 43. Ke3 Kb7 44. Kf3 a5 45. bxa5 b4 46. Ke4 Ka6
47. Kd4 Kb5 48. Kd3 Kxc5 *
Position (FEN): 8/8/2p2p1p/P1k2Pp1/1p4P1/1P1K3P/8/8 w - - 0 49
White to move.
Themes:  Endgame, Pawn Endgame  
Puzzle rating: 923
Best move: a6