Chess puzzle (Equality)
Moves: 1. e4 e5 2. Nf3 d6 3. Bc4 Bg4 4. d4 Nc6 5. dxe5 Nxe5 6. O-O Nxf3+ *
Position (FEN): r2qkbnr/ppp2ppp/3p4/8/2B1P1b1/5n2/PPP2PPP/RNBQ1RK1 w kq - 0 7
White to move.
Themes:  Opening  
Puzzle rating: 1441
Best move: gxf3