Sometimes a strong enemy passed pawn can be a hindrance to that side, if it block his own pieces.
In this week’s problem, Black has to cope with the task of neutralising White’s strong centre and strong bishop.
How does Black to play bring about a situation where his knight is stronger than the enemy bishop?
The solution to last Monday’s problem is that White plays 1. Nb3! b6 2. Rfc1 Rac8 3. Ba6 Rce8 4. Bb7 and White controls the c-file.