s:evaluate
Added `FREE` to return number of available cells. Image is now ~1k cells smaller. FossilOrigin-Name: 44379d08471b4afa256d98ee7e3e3f8c48af7d9b94da0395142b16bbf2a80571
FossilOrigin-Name: 87ce2066d166476f2739747e97d4daa070b674173433fbf912cc6fba94afcbdd
FossilOrigin-Name: 6f7566eab5a787d4336a97008c00226f3a5a9c31d13ff65a2d21a7df32aa8a8d