Chess puzzle (Checkmate)
Moves: 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. Nf3 Bg4 5. Be2 Nc6 6. O-O O-O-O 7. d3 e5 8.
h3 Bxf3 9. Bxf3 Qe6 10. Bg4 f5 11. Bf3 Nh6 12. Bxh6 Qxh6 13. Qe2 Nd4 14. Qxe5
Bd6 15. Qe3 Qxe3 16. fxe3 Nxc2 17. Rac1 Nxe3 18. Rfe1 Bc5 19. Kh1 f4 20. Re2
Rxd3 21. Nb5 a6 22. Rxc5 Rd1+ 23. Kh2 Nf1+ 24. Kg1 Ng3+ 25. Kf2 *
Position (FEN): 2k4r/1pp3pp/p7/1NR5/5p2/5BnP/PP2RKP1/3r4 b - - 6 25
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 857
Best move: Nh1#