All examples are solid black shapes.
This problem is absurdly hard. It makes a good extreme example. - Aaron David Fairbanks, Nov 23 2020
Adjacent-numbered pages: BP554 BP555 BP556 BP557 BP558  *  BP560 BP561 BP562 BP563 BP564
hard, precise, allsorted, notso, stretch, challenge, left-narrow, perfect
fill_shape [smaller | same | bigger]
Leo Crabbe
Adjacent-numbered pages: BP811 BP812 BP813 BP814 BP815  *  BP817 BP818 BP819 BP820 BP821
precise, notso, stretch, unstable, perfect
fill_shapes [smaller | same | bigger]