A tetromino is made up of four squares joined edge to edge. Can
this tetromino, together with 15 copies of itself, be used to cover
an eight by eight chessboard?
Stage: 2 Challenge Level:
Experiment with colouring in different sections to make
particular shapes. How could you make a regular octagon?
Try finding as many different triangles as you can - this may help
you to see what can be done.
The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the
NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to
embed rich mathematical tasks into everyday classroom practice. More information on many of our other activities
can be found here.