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 Ba5 7. O-O h6 8.
Qd5 Qe7 9. Ba3 d6 *
Position (FEN): r1b1k1nr/ppp1qpp1/2np3p/b2Q4/2B1P3/B1P2N2/P4PPP/RN3RK1 w kq - 0 10
White to move.
Themes:  Opening  
Puzzle rating: 2089
Best move: Bb5