Chess puzzle (Advantage)
Moves: 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Qb6 5. Nf3 cxd4 6. cxd4 Nc6 7. a3 Bd7 8. Nc3
a6 9. Be2 h6 10. O-O Nge7 11. b4 Nf5 12. Na4 Qa7 13. Nc5 Bxc5 14. bxc5 O-O 15.
Rb1 Rab8 16. Bb2 b6 17. cxb6 Rxb6 18. Bd3 Nfe7 19. Bc2 Rfb8 20. Qd3 *
Position (FEN): 1r4k1/q2bnpp1/prn1p2p/3pP3/3P4/P2Q1N2/1BB2PPP/1R3RK1 b - - 5 20
Black to move.
Themes:  Middlegame  
Puzzle rating: 963
Best move: Rxb2