Chess puzzle (Crushing)
Moves: 1. d4 Nf6 2. c4 d6 3. Nf3 Bf5 4. Nc3 Nbd7 5. e3 e5 6. d5 Be7 7. Bd3 e4 8. Nh4
Bg4 9. Be2 Bxe2 10. Qxe2 Nxd5 11. cxd5 Bxh4 12. Nxe4 O-O 13. O-O Qe7 14. Nc3
Ne5 15. e4 Rae8 16. f3 Ng6 17. Qc2 Ne5 18. Be3 a6 19. Bf2 Nc4 20. b3 Ne5 21.
Na4 b5 22. Nb2 Bxf2+ 23. Rxf2 Ng6 24. Nd3 Ne5 25. Nb4 a5 26. Nc6 Nxc6 27. Qxc6
Rb8 28. Rc2 Rfc8 29. Rac1 h5 30. Qa6 f5 31. Qxa5 fxe4 32. Qe1 e3 33. Re2 Re8
34. Rc3 Qf7 35. Rcxe3 Rxe3 36. Rxe3 Qxd5 37. Re8+ Rxe8 38. Qxe8+ Kh7 39. Qe4+
Qxe4 40. fxe4 Kg6 41. Kf2 Kg5 42. Kf3 Kf6 43. a4 bxa4 44. bxa4 c5 *
Position (FEN): 8/6p1/3p1k2/2p4p/P3P3/5K2/6PP/8 w - - 0 45
White to move.
Themes: Defensive Move Endgame, Pawn Endgame  
Puzzle rating: 1228
Best move: a5