Chess puzzle (Checkmate)
Opening: Alekhine_Defense, Alekhine_Defense_Two_Pawns_Attack
Moves: 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. d4 e6 5. Nf3 Be7 6. Bd3 O-O 7. h4 h6 8. Qc2 d5
9. c5 N6d7 10. Ng5 Na6 11. Bxa6 bxa6 *
Position (FEN): r1bq1rk1/p1pnbpp1/p3p2p/2PpP1N1/3P3P/8/PPQ2PP1/RNB1K2R w KQ - 0 12
White to move.
Themes:  Opening Mate in 1 
Puzzle rating: 999
Best move: Qh7#