This is the eighth installment of the Monthly Topic Challenges with topics suggested and voted on here. This month's topic is "Cellular Automata" (suggested by melfnt) and will span from the 1st of March to the 31st of March. During this period, we will compile the list of relevant questions and post it as an answer to this question.

In the meantime, please go and propose and vote on future challenges!

Everyone have fun, and happy puzzling!

Link to other Monthly Topic Challenges.

The suggestion is copied to this post for posterity.

Cellular Automata

Here's a regular tag that doesn't seem to get much love:

This can involve puzzles about a well-known cellular automaton, like for example Conway's Game of Life, or a cellular automaton you've created on your own!

Get creative! Maybe we need to reverse-engineer something, try to produce a certain output with given starting conditions, or something entirely different! Crossovers are of course allowed and encouraged.

Great examples of puzzles on this site are Game of Life: Kill the Sun, Can you recreate this fractal I randomly made? and Checkerboard Infection

copied from Fortnightly Topic Challenges Threrun: Topic Suggestions originally posted by Lukas Rotter


1 Answer 1


List of all questions published as part of the Monthly Topic Challenge #8:

The highest-voted three of these are:

The most viewed three of these are:


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