Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Kalashnikov_Variation
Moves: 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. a4 a6 7. N5a3 Nf6 8. Nc3
h6 9. Nc4 Be6 10. Be3 Bxc4 11. Bxc4 Be7 12. f3 O-O 13. Nd5 Nxd5 14. Bxd5 Rc8
15. O-O Kh8 16. Qd2 f5 17. Bxh6 *
Position (FEN): 2rq1r1k/1p2b1p1/p1np3B/3Bpp2/P3P3/5P2/1PPQ2PP/R4RK1 b - - 0 17
Black to move.
Themes: Defensive Move Middlegame  
Puzzle rating: 1768
Best move: f4