Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 d5 6. cxd5 Nxd5 7. Qc2 Nc6 8.
Nf3 b6 9. e3 Bb7 10. Bb5 O-O 11. O-O a6 12. Bc4 Nf6 13. e4 Na5 14. Bd3 Qd7 15.
Re1 Rad8 16. h3 Ba8 17. e5 Nd5 18. Bxh7+ Kh8 19. Be4 Bc6 20. Qe2 Nxc3 21. Qe3
Nxe4 22. Qf4 Nb3 23. Qh4+ Kg8 24. Rxe4 Bxe4 25. Qxe4 Nxa1 26. Ng5 f6 *
Position (FEN): 3r1rk1/2pq2p1/pp2pp2/4P1N1/3PQ3/P6P/5PP1/n1B3K1 w - - 0 27
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 806
Best move: Qh7#