Chess puzzle (Advantage)
Opening: Scotch_Game, Scotch_Game_Scotch_Gambit
Moves: 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Qe7 5. O-O d6 6. Nxd4 Bd7 7. Nc3 Nf6 8.
Bg5 Qe5 9. Bxf6 gxf6 10. Ndb5 O-O-O 11. Bxf7 a6 12. a4 axb5 *
Position (FEN): 2kr1b1r/1ppb1B1p/2np1p2/1p2q3/P3P3/2N5/1PP2PPP/R2Q1RK1 w - - 0 13
White to move.
Themes:  Middlegame  
Puzzle rating: 1130
Best move: axb5