A difficult decision

8/6/2010 – The fact that even simple looking rook endings can be very tricky is exemplified in this example from the Bundesliga. For the moment the black king is shut off from the kingside, where the pair of white passed pawns is heading for promotion. But Black too can still throw his passed pawn into the balance, which greatly complicates matters. Which continuation do you think still offers Black drawing chances here: 53...Rc4, to support the advance of the passed pawn, or 53...Ra8, to harass the white king with checks? Analysis by GM Karsten Müller on ChessBase Magazine Online.