Chess puzzle (Crushing)
Moves: 1. c4 d6 2. d4 e6 3. Nc3 c6 4. e4 h6 5. Nf3 a6 6. Bd3 Nd7 7. O-O c5 8. d5 e5 9.
a3 g6 10. b4 b6 11. Be3 Bg7 12. Qc2 Ngf6 13. Qd2 Ng4 14. h3 Nxe3 15. Qxe3 Nf6
16. a4 Nh5 17. b5 a5 18. Ne2 Bb7 19. Kh2 Qe7 20. Nfg1 O-O-O 21. g4 Nf4 22. Nxf4
exf4 23. Qxf4 Bxa1 24. Rxa1 Qe5 25. Qxe5 dxe5 26. Rf1 f6 27. Kg3 Rd6 28. Ne2
Rf8 29. f4 exf4+ *
Position (FEN): 2k2r2/1b6/1p1r1ppp/pPpP4/P1P1PpP1/3B2KP/4N3/5R2 w - - 0 30
White to move.
Themes:  Endgame  
Puzzle rating: 1217
Best move: Nxf4