Eight

The Dr. Wood Challenge Centre is delighted to bring you the Mind Challenge Classic series. This line of devious, intriguing, compelling and fun puzzles is dedicated to the great minds of the world. From mischievous two-piece puzzles that you could solve in five minutes to fiendishly complex ones that may take you a lifetime, the series will introduce you to some of the world's seminal puzzle creations!

It couldn't be simpler!

Just eight pieces... hours of addiction!

Arrange all eight marbles on the board...

All you have to do is ensure that no two marbles are on the same straight line (horizontally, vertically or diagonally).

Grid lines are provided on the board for your convenience

Challenge: Can you solve it in one hour?!