Chess puzzle (Equality)
Moves: 1. e4 e5 2. Bc4 a6 3. Nf3 b5 4. Nxe5 *
Position (FEN): rnbqkbnr/2pp1ppp/p7/1p2N3/2B1P3/8/PPPP1PPP/RNBQK2R b KQkq - 0 4
Black to move.
Themes:  Opening  
Puzzle rating: 1583
Best move: bxc4