Chess puzzle (Checkmate)
Moves: 1. f4 d5 2. Nh3 Bxh3 3. gxh3 e5 4. fxe5 *
Position (FEN): rn1qkbnr/ppp2ppp/8/3pP3/8/7P/PPPPP2P/RNBQKB1R b KQkq - 0 4
Black to move.
Themes:  Opening Mate in 1 
Puzzle rating: 801
Best move: Qh4#