Pentomino + Pentomino = Decomino

This week’s challenge is about pentomino pairs. You can split any decomino (10 square shape) into 2 pentominoes (Is this true? Or can you find a 10 square polyomino (decomino) that can’t be split into…

Polyomino Competition Update

A couple of updates to the competition. First the deadline has been extended to include half term. You can now submit your entry any time up to Sunday 2nd June. This also allows you to…

Open Cube Nets vs Pentominoes

Pentominoes are where polyominoes start to get interesting. There are just enough of them to make it a nice challenge to discover them all (as an extension, see if you can find a way to…

Polyominoes and Symmetry

One of the difficulties in learning maths, and especially geometry is that we learn about mathematical objects in non mathematical ways. So we might learn algebra by learning to move numbers around the equation. This…

Making Pentominoes

Polyominoes are made with squares. If you use 2 squares you make a domino. There is only one type of domino. Most of us will be familiar with it. If you use 3 squares, you…

Polyomino Challenges

Polyominoes are shapes made by sticking squares together in a particular way. All squares must be connected to at least one other square Squares can only be connected across a full side There are lots…