Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Classical_Variation
Moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Be3 Qa5 7. f3 e5 8. Nb3
Qd8 9. Be2 a6 10. a4 Be6 11. Nd5 Nxd5 *
Position (FEN): r2qkb1r/1p3ppp/p1npb3/3np3/P3P3/1N2BP2/1PP1B1PP/R2QK2R w KQkq - 0 12
White to move.
Themes:  Opening  
Puzzle rating: 1030
Best move: exd5