Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Closed
Moves: 1. e4 c5 2. Nc3 e6 3. Bc4 g6 4. Nf3 b6 5. d4 cxd4 6. Nxd4 Bg7 7. Be3 Qc7 8. O-O
Qxc4 9. Ncb5 Bf8 *
Position (FEN): rnb1kbnr/p2p1p1p/1p2p1p1/1N6/2qNP3/4B3/PPP2PPP/R2Q1RK1 w kq - 2 10
White to move.
Themes:  Opening  
Puzzle rating: 1772
Best move: b3