Chess puzzle (Crushing)
Moves: 1. d4 d5 2. Nf3 Bf5 3. Bf4 e6 4. e3 Nf6 5. Bd3 Bb4+ 6. c3 Bxd3 7. Qxd3 Ba5 8.
O-O O-O 9. Ne5 Nbd7 10. Nd2 Nxe5 11. Bxe5 Ng4 12. Bg3 c6 13. h4 Bc7 14. Bxc7
Qxc7 15. Nf3 Rae8 16. e4 dxe4 17. Qxe4 f5 18. Qe2 Rf6 19. Ne5 Nh6 20. Qh5 Ref8
21. f4 Nf7 22. Qe2 Rh6 23. g3 Nxe5 24. fxe5 Qe7 25. Rf4 Rg6 26. Qf2 Rg4 27. Rf1
Qf7 28. Kh2 Qg6 29. Kh3 Rxf4 30. Qxf4 Qg4+ 31. Qxg4 fxg4+ 32. Kg2 Rxf1 33. Kxf1
h5 34. Ke2 Kf7 35. Ke3 Kg6 36. Kf4 b6 37. c4 a6 38. b4 b5 39. cxb5 *
Position (FEN): 8/6p1/p1p1p1k1/1P2P2p/1P1P1KpP/6P1/P7/8 b - - 0 39
Black to move.
Themes:  Endgame, Pawn Endgame  
Puzzle rating: 1565
Best move: axb5