Chess puzzle (Checkmate)
Opening: French_Defense, French_Defense_Other_variations
Moves: 1. e4 e6 2. Bc4 d5 3. exd5 exd5 4. Bb3 Nf6 5. Nf3 Bd6 6. O-O O-O 7. d4 Bg4 8.
Bg5 c6 9. Qd3 Nbd7 10. Nbd2 Qc7 11. g3 Rae8 12. Nh4 h6 13. Be3 Ne4 14. Nxe4
dxe4 15. Qc4 b5 16. Qc3 g5 17. Ng6 Bf3 18. d5 c5 *
Position (FEN): 4rrk1/p1qn1p2/3b2Np/1ppP2p1/4p3/1BQ1BbP1/PPP2P1P/R4RK1 w - - 0 19
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1049
Best move: Qh8#