Chess puzzle (Advantage)
Moves: 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Bb4 6. Bd2 Nbd7 7. Bd3 Nb6 8. a3
Bd6 9. c5 Nc4 10. cxd6 Nxb2 11. Qc2 Nxd3+ 12. Qxd3 Qxd6 13. Ne5 O-O 14. O-O b6
15. f4 a5 16. Na4 Ba6 17. Qb3 Bxf1 18. Kxf1 Rab8 19. Rc1 Rfc8 20. Nxb6 Rc7 21.
Bxa5 Ra7 22. Qa4 *
Position (FEN): 1r4k1/r4ppp/1Npqpn2/B2pN3/Q2P1P2/P3P3/6PP/2R2K2 b - - 2 22
Black to move.
Themes:  Middlegame  
Puzzle rating: 1246
Best move: Rxb6