The Block Donut Rule is a principle of block pushing, concerning the fastest way to get two or more blocks in a chain which points towards their intended path, containing one or more turns, out through to an identical destination. The simplest situation where the Block Donut Rule is usable is something such as this: However, the Block Donut Rule is not usable in situations where the push physically closer to the target will impede Chip's pathway, or cause the block to be either technically further away from its target or completely unusable.