Chess puzzle (Checkmate)
Opening: Owen_Defense, Owen_Defense_Other_variations
Moves: 1. e4 b6 2. d4 Bb7 3. Bd3 e6 4. Nf3 Nf6 5. Qe2 Bb4+ 6. c3 Be7 7. O-O O-O 8.
Nbd2 d5 9. e5 Nfd7 10. Bc2 c5 11. Qd3 c4 *
Position (FEN): rn1q1rk1/pb1nbppp/1p2p3/3pP3/2pP4/2PQ1N2/PPBN1PPP/R1B2RK1 w - - 0 12
White to move.
Themes: Kingside Attack Opening Mate in 1 
Puzzle rating: 400
Best move: Qxh7#