Chess puzzle (Checkmate)
Opening: English_Opening, English_Opening_The_Whale
Moves: 1. c4 e5 2. e4 Nc6 3. d3 Nf6 4. Bg5 Bc5 5. h3 Nxe4 6. Bxd8 Bxf2+ 7. Ke2 *
Position (FEN): r1bBk2r/pppp1ppp/2n5/4p3/2P1n3/3P3P/PP2KbP1/RN1Q1BNR b kq - 1 7
Black to move.
Themes:  Opening Mate in 1 
Puzzle rating: 1256
Best move: Nd4#