Chess puzzle (Advantage)
Opening: Scotch_Game, Scotch_Game_Schmidt_Variation
Moves: 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Qd3 Bxc3+ 7. bxc3 O-O
8. Bg5 Ne5 9. Qd2 Nxe4 10. Bxd8 Nxd2 11. Bxc7 Ndc4 *
Position (FEN): r1b2rk1/ppBp1ppp/8/4n3/2nN4/2P5/P1P2PPP/R3KB1R w KQ - 1 12
White to move.
Themes:  Middlegame  
Puzzle rating: 1760
Best move: f4