Chess puzzle (Checkmate)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Stonewall_Attack
Moves: 1. d4 d5 2. e3 Nf6 3. Bd3 e6 4. Nd2 c5 5. c3 Nc6 6. f4 b6 7. Ngf3 Bb7 8. Ne5
Nd7 9. Qf3 Bd6 10. O-O f6 11. Qh5+ Ke7 *
Position (FEN): r2q3r/pb1nk1pp/1pnbpp2/2ppN2Q/3P1P2/2PBP3/PP1N2PP/R1B2RK1 w - - 2 12
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1035
Best move: Qf7#