Chess puzzle (Checkmate)
Opening: Alekhine_Defense, Alekhine_Defense_Exchange_Variation
Moves: 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Nf3 Be7 7. Nc3 O-O 8.
Bd3 c5 9. d5 Bf6 10. O-O N8d7 11. Bc2 Nxc4 12. Qd3 Nce5 *
Position (FEN): r1bq1rk1/pp1n1ppp/3p1b2/2pPn3/8/2NQ1N2/PPB2PPP/R1B2RK1 w - - 2 13
White to move.
Themes: Kingside Attack Opening Mate in 1 
Puzzle rating: 562
Best move: Qxh7#