Chess puzzle (Checkmate)
Moves: 1. f3 f6 2. e4 Kf7 3. Kf2 Kg6 4. Ke3 Kh5 5. Kf4 Kh4 6. g4 g5+ 7. Kf5 *
Position (FEN): rnbq1bnr/ppppp2p/5p2/5Kp1/4P1Pk/5P2/PPPP3P/RNBQ1BNR b - - 1 7
Black to move.
Themes: Discovered Attack Opening Mate in 1 
Puzzle rating: 656
Best move: d6#