Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. Bf4 d6 3. Nc3 h6 4. f3 Nh5 5. Bd2 e5 6. h4 Ng3 7. Rh3 Bxh3 8. Nxh3
Nxf1 9. Kxf1 exd4 10. Nd5 Nd7 11. Be1 c6 12. Ndf4 Qb6 13. Bf2 c5 14. Nd5 Qc6
15. e4 O-O-O 16. a4 a5 17. Qd3 f5 18. Kg1 Ne5 19. Qb3 c4 20. Qb5 Qxb5 21. axb5
d3 22. cxd3 Nxd3 23. Bd4 Nb4 24. Nb6+ Kc7 25. Rxa5 Be7 26. Nxc4 Ra8 27. b6+ Kc6
28. Rxf5 Bxh4 29. Na5+ Kd7 30. Rf7+ Ke6 31. Rxg7 Rxa5 *
Position (FEN): 7r/1p4R1/1P1pk2p/r7/1n1BP2b/5P1N/1P4P1/6K1 w - - 0 32
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1620
Best move: Nf4#