Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Hyperaccelerated_Fianchetto
Moves: 1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Bg7 5. Be3 Nc6 6. Nc3 Nf6 7. Qd2 O-O 8.
O-O-O a6 9. Kb1 b5 *
Position (FEN): r1bq1rk1/3pppbp/p1n2np1/1p6/3NP3/2N1B3/PPPQ1PPP/1K1R1B1R w - - 0 10
White to move.
Themes:  Opening  
Puzzle rating: 1449
Best move: Nxc6