You may also like

Instant Insanity

Given the nets of 4 cubes with the faces coloured in 4 colours, build a tower so that on each vertical wall no colour is repeated, that is all 4 colours appear.

Magic Caterpillars

Label the joints and legs of these graph theory caterpillars so that the vertex sums are all equal.

Plum Tree

Label this plum tree graph to make it totally magic!

Magic W

Age 14 to 16
Challenge Level

The sum of the numbers 1 to 9 is 45 and four rows of 13 add up to 52. How do you make up the extra 7?

See also Olympic Magic.