Chess puzzle (Checkmate)
Opening: Semi-Slav_Defense, Semi-Slav_Defense_Accelerated_Move_Order
Moves: 1. d4 d5 2. c4 c6 3. Nc3 e6 4. Bf4 Nf6 5. Qc2 h6 6. e4 dxe4 7. O-O-O Bd6 8.
Bxd6 Qxd6 9. Nxe4 Nxe4 10. Qxe4 O-O 11. Bd3 Na6 *
Position (FEN): r1b2rk1/pp3pp1/n1pqp2p/8/2PPQ3/3B4/PP3PPP/2KR2NR w - - 3 12
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 697
Best move: Qh7#