Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Other_variations
Moves: 1. e4 c5 2. Bd3 d6 3. c3 Nf6 4. Bc2 e6 5. Nf3 Be7 6. O-O O-O 7. d4 cxd4 8. Qxd4
Nc6 9. Qd1 a6 10. Bg5 h6 11. Bxf6 Bxf6 12. Qd3 Qc7 *
Position (FEN): r1b2rk1/1pq2pp1/p1nppb1p/8/4P3/2PQ1N2/PPB2PPP/RN3RK1 w - - 2 13
White to move.
Themes:  Opening  
Puzzle rating: 1004
Best move: e5