Chess puzzle (Advantage)
Opening: Scotch_Game, Scotch_Game_Goring_Gambit
Moves: 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3 dxc3 5. Nxc3 Bc5 6. Bc4 d6 7. O-O Nf6 8.
Bg5 h6 9. Bxf6 Qxf6 10. Nd5 Qd8 11. b4 Nxb4 *
Position (FEN): r1bqk2r/ppp2pp1/3p3p/2bN4/1nB1P3/5N2/P4PPP/R2Q1RK1 w kq - 0 12
White to move.
Themes:  Opening  
Puzzle rating: 1671
Best move: Nxb4