The Brain Rules

The Brain Rules: "The Brain Rules

Small variations in the initial configuration of the squares can lead to large changes in the resulting patterns. But small variations in the underlying rules can lead to even more dramatic changes.

This page uses rules very similar to the Seeds rules. As with Seeds: If a square is on, it turns off. If a square is off, it turns on if exactly two neighboring squares are on. But there is one small twist: When a square turns off, it can't turn on in the very next iteration. Squares in this in-between state are colored red."