Chess puzzle (Advantage)
Moves: 1. d4 d6 2. e4 e5 3. dxe5 Nc6 4. exd6 Bxd6 5. Nc3 Qe7 6. Bd3 Be6 7. Nf3 Bg4 8.
Be3 O-O-O 9. Qe2 Bb4 10. O-O Nf6 11. a3 Ba5 12. b4 Bb6 13. Bxb6 axb6 14. Rfe1
Ne5 15. Qe3 Nxf3+ 16. gxf3 Bh3 17. Bf1 Bxf1 18. Kxf1 Nh5 19. Nd5 Qh4 20. a4 *
Position (FEN): 2kr3r/1pp2ppp/1p6/3N3n/PP2P2q/4QP2/2P2P1P/R3RK2 b - - 0 20
Black to move.
Themes:  Middlegame  
Puzzle rating: 1961
Best move: Rxd5