The objective is to arrange the pegs on the board (8X8) so that no two pegs of the same color are in straight line in any direction: vertically, horizontally, or diagonally. All 64 squares must be filled. The transparent pegs are voids and so may be in the same row, column or diagonal as any other peg.
Try to find as many solutions as you can, with as few void pegs and moves as possible. It is a real challenge for your mind!
A training for your brain, maintain and improve memory, creativity, attention and speed to resolve problems. Statistics are there to show your progression (date, number of moves and resolution time).