We are providing you with a primitive called one-quarter. (one-quarter 25) produces the image to the right. We recommend you play around with it in the interactions window.
The smallest escher-square (at or below the CUTOFF) is made up of four one-quarter images, two of which have been rotated.
An escher-square of twice the CUTOFF starts similarly, and also has a smaller escher-square overlayed on top of it, directly in the center.
Three times the cutoff looks like this.
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