Draw square boxes in all four corners of the square number one to four.
Place two more boxes between boxes 1 and 2 and 2-3
Number them 5-6 and 7-8.
Draw two boxes in centre of square, one inside of the other inner square should be smaller than outer box.
Draw lines from all 4 corners of middle box to the corners of outer box creating four more boxes.
Number them 9 through 13 place 13 in the middle box.
Then you are finished creating your Skelly board.
Posted by: THEODORE LEE