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Begin with a chain of Speks. Fold it back on itself every 12 Speks to create a rectangle that is 12x4.
Add a chain that is 4 Speks long and double it back on itself until a 4x4 square is attached to the top of the rectangle. Repeat this process at the bottom of the rectangle so that you have two squares along the edge with a 4 spek gap in the middle.
Create another 12x4 rectangle attached along the sides of the small squares. This creates a larger 12x12 square with a 4x4 hole in the middle. Repeat until you have 4 12x12 squares. Align them to make one large sheet.
Fold the sheet as pictured above in a zig zag pattern.