Chess puzzle (Advantage)
Opening: Four_Knights_Game, Four_Knights_Game_Spanish_Variation
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. Nc3 Nf6 5. O-O d6 6. Nd5 Nxe4 7. d3 Nf6 8.
Bg5 h6 9. Bxf6 gxf6 10. b4 Bb6 11. a4 a6 12. Bxc6+ bxc6 13. Nc3 Be6 14. a5 Ba7
15. d4 exd4 16. Nxd4 Qd7 17. Ne4 Bxd4 *
Position (FEN): r3k2r/2pq1p2/p1ppbp1p/P7/1P1bN3/8/2P2PPP/R2Q1RK1 w kq - 0 18
White to move.
Themes:  Middlegame  
Puzzle rating: 1610
Best move: Qxd4