Chess puzzle (Advantage)
Opening: Center_Game, Center_Game_Other_variations
Moves: 1. e4 e5 2. d4 f6 3. dxe5 fxe5 4. f4 d6 5. Nf3 Nc6 6. Bc4 Bg4 7. Qd5 Qd7 8. Ng5
Nb4 *
Position (FEN): r3kbnr/pppq2pp/3p4/3Qp1N1/1nB1PPb1/8/PPP3PP/RNB1K2R w KQkq - 8 9
White to move.
Themes:  Middlegame  
Puzzle rating: 1985
Best move: Qxb7