Your judgement, please - Pt. 39

Retirado do site Chessbase.com.

Barriers
05.01.2010 – An active king often plays a decisive part in rook endings. If it can support a passed pawn in its advance, then the king and pawn form an extremely deadly duo. So the ability of the rook to cut off the king horizontally or vertically from one of the theatres of war and thus to restrict its activity is an important weapon in the arsenal of endgame technique. Karsten Müller has selected a recent endgame in which the theme of the barrier and the struggle against it are in the foreground.

Analysis of Brynell-Popov for ChessBase Magazine Online.

Position after 73...Re4