Chess puzzle (Checkmate)
Opening: French_Defense, French_Defense_Classical_Variation
Moves: 1. d4 d5 2. Nc3 Nf6 3. Bg5 e6 4. e4 Be7 5. e5 Ne4 6. Bxe7 Qxe7 7. Nxe4 dxe4 8.
Qe2 O-O 9. O-O-O c5 10. Qxe4 cxd4 11. Bd3 Nc6 *
Position (FEN): r1b2rk1/pp2qppp/2n1p3/4P3/3pQ3/3B4/PPP2PPP/2KR2NR w - - 2 12
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 517
Best move: Qxh7#