Chess puzzle (Advantage)
Opening: Scotch_Game, Scotch_Game_Classical_Variation
Moves: 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. Nxc6 Bxe3 7. fxe3 Qxb2
8. Nd2 dxc6 9. Bd3 Ne7 10. O-O O-O 11. Nc4 Qc3 *
Position (FEN): r1b2rk1/ppp1nppp/2p5/8/2N1P3/2qBP3/P1P3PP/R2Q1RK1 w - - 6 12
White to move.
Themes:  Middlegame  
Puzzle rating: 1488
Best move: Rb1