Chess puzzle (Advantage)
Opening: Scotch_Game, Scotch_Game_Scotch_Gambit
Moves: 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bb4+ 5. c3 dxc3 6. bxc3 Bc5 7. Qd5 Qe7 8.
Bg5 f6 9. Bf4 d6 10. O-O Bd7 11. Nbd2 g5 12. Nxg5 *
Position (FEN): r3k1nr/pppbq2p/2np1p2/2bQ2N1/2B1PB2/2P5/P2N1PPP/R4RK1 b kq - 0 12
Black to move.
Themes:  Middlegame  
Puzzle rating: 1327
Best move: fxg5