Heads and Tails Puzzle

Heads and tails is a brain-teasing puzzle consisting of just 9 tiles, but allow for hours of fine mind exercising entertainment.

It all looks very simple. All you need is to arrange the tiles into a 3 x 3 square, so that the depicted images match in shape and colour all of their neighboring pieces. Two picture sets, each with two possible layout solutions, but finding them is far from easy