Chess puzzle (Crushing)
Moves: 1. d4 e6 2. e4 d5 3. exd5 exd5 4. Nf3 Bd6 5. Bd3 Nf6 6. Bg5 h6 7. Bh4 O-O 8.
O-O Re8 9. Nc3 c6 10. Ne2 Nbd7 11. Bg3 Nf8 12. Be5 Bg4 13. Bxd6 Qxd6 14. Ng3
Ne4 15. Re1 Nxg3 16. Rxe8 Rxe8 17. hxg3 Qf6 18. c3 Re7 19. Be2 Bxf3 20. Bxf3
Ne6 21. Qd3 g6 22. Kf1 Ng5 23. Re1 Rxe1+ 24. Kxe1 Nxf3+ 25. Qxf3 Qxf3 26. gxf3
h5 27. f4 Kg7 28. Ke2 f6 29. Kf3 g5 30. fxg5 fxg5 31. Kg2 Kg6 32. f4 *
Position (FEN): 8/pp6/2p3k1/3p2pp/3P1P2/2P3P1/PP4K1/8 b - - 0 32
Black to move.
Themes:  Endgame, Pawn Endgame  
Puzzle rating: 931
Best move: gxf4