Chess puzzle (Advantage)
Moves: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 d5 6. Bb5 Bd7 7. O-O dxe4 8.
Nxc6 Bxc6 9. Bxc6+ bxc6 10. Nxe4 Be7 11. Bf4 Nf6 12. Nd6+ Bxd6 13. Qxd6 Qxd6
14. Bxd6 Rd8 15. Rad1 Ne4 16. Bc7 Rxd1 17. Rxd1 O-O 18. f3 Nc5 19. Bd6 Rd8 20.
Kf1 *
Position (FEN): 3r2k1/p4ppp/2pBp3/2n5/8/5P2/PPP3PP/3R1K2 b - - 4 20
Black to move.
Themes:  Endgame  
Puzzle rating: 1580
Best move: Nb7