Chess puzzle (Crushing)
Moves: 1. e4 c5 2. Nc3 Nc6 3. f4 e6 4. Nf3 d6 5. Bb5 g6 6. Bxc6+ bxc6 7. d3 Bg7 8. Bd2
Ne7 9. Na4 O-O 10. e5 dxe5 11. fxe5 a5 12. Nxc5 Qd5 13. d4 Nf5 14. c3 Ba6 15.
Qc2 Rfe8 16. Bg5 h5 17. Nxa6 Rxa6 18. O-O c5 19. Rad1 cxd4 20. cxd4 Rc6 21. Qa4
Rec8 22. Rf2 Rc4 23. Qb3 Nxd4 24. Nxd4 Rxd4 25. Qxd5 Rxd5 26. Rxd5 exd5 27. Bf4
Rd8 28. Rd2 d4 29. Rd3 Kf8 30. h4 Rd5 31. Kf2 Ke7 32. Kf3 Ke6 33. Ke4 Bxe5 34.
Bxe5 Rxe5+ 35. Kxd4 Re2 36. Re3+ Rxe3 37. Kxe3 Ke5 38. Kf3 f5 39. Ke3 f4+ 40.
Kf3 Kf5 41. a3 *
Position (FEN): 8/8/6p1/p4k1p/5p1P/P4K2/1P4P1/8 b - - 0 41
Black to move.
Themes: Defensive Move Endgame, Pawn Endgame  
Puzzle rating: 1688
Best move: a4