Following documentation is a cooperative result combined from our Discord chat. Thanks to everyone who helped!
This image was produced from the thirty-third radio transmission using previously contributed code.
Draws a checkerboard of the specified size.
checkerboard checkerboard = ap ap s ap ap b s ap ap c ap ap b c ap ap b ap c ap c ap ap s ap ap b s ap ap b ap b ap ap s i i lt eq ap ap s mul i nil ap ap s ap ap b s ap ap b ap b cons ap ap s ap ap b s ap ap b ap b cons ap c div ap c ap ap s ap ap b b ap ap c ap ap b b add neg ap ap b ap s mul div ap ap c ap ap b b checkerboard ap ap c add 2 ap ap checkerboard 7 0 = |picture1| ap ap checkerboard 13 0 = |picture2|