Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Nyezhmetdinov-Rossolimo_Attack
Moves: 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. Re1 a6 6. Bf1 d6 7. c3 Bg4 8. h3
Bxf3 9. Qxf3 Ne5 10. Qd1 Nf6 11. d3 O-O 12. Nd2 d5 13. exd5 Nxd5 14. Nf3 Nxf3+
15. Qxf3 b5 16. g3 Qd6 17. Bg2 e6 18. c4 Nb4 19. Qxa8 *
Position (FEN): Q4rk1/5pbp/p2qp1p1/1pp5/1nP5/3P2PP/PP3PB1/R1B1R1K1 b - - 0 19
Black to move.
Themes:  Middlegame  
Puzzle rating: 1228
Best move: Rxa8