Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Bowdler_Attack
Moves: 1. e4 c5 2. Bc4 e6 3. d4 cxd4 4. Qxd4 Nc6 5. Qd1 g6 6. Nf3 Bg7 7. c3 Nf6 8. Bg5
Qc7 9. Qe2 O-O 10. Nbd2 a6 11. a4 Re8 12. O-O d5 13. exd5 *
Position (FEN): r1b1r1k1/1pq2pbp/p1n1pnp1/3P2B1/P1B5/2P2N2/1P1NQPPP/R4RK1 b - - 0 13
Black to move.
Themes:  Middlegame  
Puzzle rating: 1284
Best move: exd5