Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Dragon_Variation
Moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Bc4 Bg7 7. O-O O-O 8. h3
a6 9. Be3 Qc7 10. b3 Nbd7 11. Qd2 b5 12. Bd5 Nxd5 *
Position (FEN): r1b2rk1/2qnppbp/p2p2p1/1p1n4/3NP3/1PN1B2P/P1PQ1PP1/R4RK1 w - - 0 13
White to move.
Themes:  Middlegame  
Puzzle rating: 1315
Best move: Nxd5