In the battle against separated pawns bishop is much more efficient than knight since very often it can simultaneously control the routes of two very far-advanced pawns. Nevertheless, very much like knight, it can find itself in an unenviable situation, i.e. when it has achieved only a relative blockade. Just to remind you, relative blockade is such a blockade whereby by a sacrifice of one pawn the bishop may be deflected thus clearing the path to the other pawn to the promotion square. Bishop alone, without the aid of the king, cannot stop split pawns if they have already reached the sixth rank. A typical position is shown in the following diagram. White to play wins since the bishop can only once intersect the route of one pawn towards the promotion square.