Chess puzzle (Advantage)
Opening: Russian_Game, Russian_Game_Three_Knights_Game
Moves: 1. e4 e5 2. Nf3 Nf6 3. Nc3 d6 4. Bc4 Bg4 5. h3 Bxf3 6. Qxf3 Be7 7. Nd5 Nbd7 8.
Nxf6+ Nxf6 9. Qb3 O-O 10. Qxb7 Qd7 11. Bxf7+ *
Position (FEN): r4rk1/pQpqbBpp/3p1n2/4p3/4P3/7P/PPPP1PP1/R1B1K2R b KQ - 0 11
Black to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 1024
Best move: Kxf7