Chess puzzle (Crushing)
Moves: 1. e4 e6 2. d4 d5 3. exd5 exd5 4. c4 c6 5. Nc3 Bd6 6. cxd5 cxd5 7. Bb5+ Nc6 8.
Nf3 Ne7 9. O-O O-O 10. Bg5 f6 11. Bh4 Bf5 12. Re1 Bc7 13. h3 Ng6 14. Bg3 a6 15.
Bd3 Bxd3 16. Qxd3 Bxg3 17. fxg3 Qd6 18. Qf5 Qxg3 19. Qxd5+ Kh8 20. Ne4 Nf4 21.
Nxg3 Nxd5 22. Ne4 Rad8 23. Nc5 Rf7 24. a3 Nf4 25. Rad1 h6 26. Re4 g5 27. Kf2 f5
28. Ne5 Nxe5 29. Rxe5 a5 30. Kf3 b6 31. Ne6 Nxe6 32. Rxe6 Rfd7 33. Rxh6+ Kg7
34. Rxb6 Rxd4 35. Rxd4 Rxd4 36. Rb4 *
Position (FEN): 8/6k1/8/p4pp1/1R1r4/P4K1P/1P4P1/8 b - - 1 36
Black to move.
Themes:  Endgame, Rook Endgame  
Puzzle rating: 1546
Best move: axb4