Chess puzzle (Advantage)
Moves: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nf6 6. Bg5 Be7 7. Nd2 d6 8.
N2f3 Qc7 9. c4 Nbd7 10. O-O O-O 11. Bxf6 Nxf6 12. b4 Bd7 13. Qb3 Bc6 14. Nxc6
bxc6 15. a4 Rfb8 16. b5 c5 17. Rfb1 Qb7 18. e5 Nd7 19. exd6 Bxd6 20. Re1 axb5
21. axb5 Bc7 22. Be4 Qxe4 23. Rxa8 *
Position (FEN): Rr4k1/2bn1ppp/4p3/1Pp5/2P1q3/1Q3N2/5PPP/4R1K1 b - - 0 23
Black to move.
Themes:  Middlegame  
Puzzle rating: 1847
Best move: Qxa8