Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_French_Variation
Moves: 1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. a4 Nc6 5. d4 cxd4 6. Nxd4 Qc7 7. g3 Nf6 8. Bg2
Bb4 9. Bd2 Ne5 10. h3 Nc4 11. Rb1 Nxd2 12. Qxd2 Qe5 13. O-O Nxe4 14. Qe3 Bc5
15. Rbd1 Bxd4 *
Position (FEN): r1b1k2r/1p1p1ppp/p3p3/4q3/P2bn3/2N1Q1PP/1PP2PB1/3R1RK1 w kq - 0 16
White to move.
Themes:  Middlegame  
Puzzle rating: 1775
Best move: Rxd4