Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Classical_Variation
Moves: 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d6 5. Nc3 Nf6 6. g3 Nxd4 7. Qxd4 Bg4 8.
Bg2 Rb8 9. Qxa7 g6 10. O-O Bg7 11. b3 b6 12. Qa4+ Bd7 13. Qd4 O-O 14. Bd2 Ng4
15. Qb4 Ne5 16. Rac1 *
Position (FEN): 1r1q1rk1/3bppbp/1p1p2p1/4n3/1Q2P3/1PN3P1/P1PB1PBP/2R2RK1 b - - 9 16
Black to move.
Themes: Defensive Move Middlegame  
Puzzle rating: 2030
Best move: b5