3Up 4Up

Explore finite states to identify impossible problems.

How it works

Follow the rules to flip the blocks so that only one colour is on each side.

Things to Try or ask around the exhibit

  • Can you get all three blocks red by flipping two at a time?
  • How many flips does it take to make all the blocks blue?


This exhibit demonstrates finite states that are either incredibly easy or impossible to accomplish.

Finding the science in your world

Logical problem solving can help you identify if a problem is impossible before you attempt it, saving time and effort.