Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. Bxc6+ bxc6 5. h3 Nf6 6. d3 g6 7. Nc3 Bg7 8.
O-O O-O 9. Re1 Ba6 10. Be3 Qb6 11. Rb1 e5 12. Ne2 d5 13. exd5 cxd5 14. Nxe5 d4
15. Bf4 Rfe8 16. Bh2 Nd5 17. Nf3 Bb7 18. c4 Nb4 19. a3 Bxf3 20. gxf3 Nc6 21.
Ng3 Ne7 22. Qa4 Qf6 23. Kg2 Qg5 24. Qd7 Kf8 25. Re2 Nf5 26. Rbe1 Rxe2 27. Rxe2
Nh4+ 28. Kh1 Nxf3 29. Qd6+ Kg8 30. Qc6 Qc1+ 31. Kg2 *
Position (FEN): r5k1/p4pbp/2Q3p1/2p5/2Pp4/P2P1nNP/1P2RPKB/2q5 b - - 5 31
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1695
Best move: Nh4#