Chess puzzle (Advantage)
Opening: Four_Knights_Game, Four_Knights_Game_Italian_Variation
Moves: 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bc4 Nxe4 5. Nxe4 d5 6. Bxd5 Qxd5 7. d3 Bg4 8.
O-O Nd4 9. c4 Qe6 10. Qa4+ c6 *
Position (FEN): r3kb1r/pp3ppp/2p1q3/4p3/Q1PnN1b1/3P1N2/PP3PPP/R1B2RK1 w kq - 0 11
White to move.
Themes:  Middlegame  
Puzzle rating: 1900
Best move: Nxd4