so you've heard of Rubik's cube here's Professor Alan's square.
Click the arrows to move each column or row of squares round one
step. Do a few at random to see how it works and then try and get
the square on the left to look like the one on the right.
is an elephant I met in Kruger National Park when I was visiting
UNISA in South Africa a few months ago.
you want to practice on something a little easier try Alan's original
square or for some festive fun try the Christmas