Puzzle corner

Colouring puzzle

Aim : To complete the pattern already started.

Rules : Each square should be coloured with two different colours (one for the centre, one for the border.).
On each row, column or diagonal, there cannot be any squares with the same colour border or centre.

Click on the borders and centres of the
pattern on the right
to complete the design !

Question taken from the 9th International Maths Games and Logic Championships