This is much more tricky than it looks, isn't it?! Well done to those of you who managed to make a square using four or five pieces. Callum from Brookside Primary, Becky from Holy Cross C of E School, Jonah from Great Wilbraham Primary and Max from Eastwood Primary made a square with four pieces. Here is Becky's solution which correctly leaves out the small square:

Dafydd, also from Holy Cross, and Rowley from Culford Primary solved the five-piece challenge. This is Rowley's image:

Mel from Christ Church Grammar, Rowley from Culford Primary, Eleanor from Great Wilbraham Primary, Callum from Castle Carrock Primary and Shiv from Sanskaar Valley, Bhopal in India, all sent in solutions to the ten-piece challenge. In fact, between them they managed to come up with four different ways of solving it! Well done everyone!

A while later, we received another solution from Hannah from Diocesan School for Girls, Auckland, New Zealand. With the help of her older brother, Hannah came up with this additional solution to the ten-piece problem:

Thank you for sending this in, Hannah.