Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Closed
Moves: 1. e4 c5 2. Nc3 g6 3. d3 Bg7 4. g3 a6 5. Bg2 e6 6. f4 Ne7 7. Nf3 O-O 8. O-O d6
9. Ne2 b5 10. Qe1 Bb7 11. g4 Qd7 12. Qh4 f5 13. exf5 exf5 14. Ng5 h6 15. Bxb7
Qxb7 16. Ne6 Rf6 17. Nxg7 Kxg7 18. b4 Nbc6 *
Position (FEN): r7/1q2n1k1/p1np1rpp/1pp2p2/1P3PPQ/3P4/P1P1N2P/R1B2RK1 w - - 1 19
White to move.
Themes: Pin Middlegame  
Puzzle rating: 1997
Best move: Bb2