Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Open
Moves: 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nxd4 5. Qxd4 e6 6. Nc3 a6 7. a3 h6 8.
Be3 Ne7 9. Be2 Nc6 10. Qd2 Be7 11. O-O-O b5 12. f4 b4 13. axb4 Bxb4 14. f5 Qa5
15. Kb1 *
Position (FEN): r1b1k2r/3p1pp1/p1n1p2p/q4P2/1b2P3/2N1B3/1PPQB1PP/1K1R3R b kq - 2 15
Black to move.
Themes: Defensive Move Middlegame  
Puzzle rating: 2214
Best move: Rb8