Chess puzzle (Checkmate)
Opening: Queens_Gambit, Queens_Gambit_Other_variations
Moves: 1. d4 d5 2. c4 h6 3. Nf3 e6 4. c5 a6 5. Bf4 Nc6 6. e3 Nf6 7. Bd3 b6 8. Ne5 Bb7
9. Nxc6 Bxc6 10. O-O bxc5 11. dxc5 Bxc5 12. Nc3 O-O 13. Qe2 d4 14. exd4 Bxd4
15. Be5 Bxc3 16. Bxc3 Nd5 17. Qe4 Nxc3 *
Position (FEN): r2q1rk1/2p2pp1/p1b1p2p/8/4Q3/2nB4/PP3PPP/R4RK1 w - - 0 18
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 818
Best move: Qh7#