Spinning Checker board in 250 bytes #pico8 #tweetcart 🏁
::_::⧗=t()/7c=8*cos(⧗)s=8*sin(⧗)for j=0,1do
for u=-3.5,4do
for v=-3.5,4do
x=64+(u*c-v*s)y=64+(v*c+u*s)/2line((u+v)%2+5)
for i=j*32+█,32do
line(x+cos(i/4+⧗)*i/4,y+sin(i/4+⧗)*i/8)end
if(v*v>6/j)?"●\n❎",x-3,y-10,4+3.5*sgn(v)
end
end
end?"\^1\^cd"
goto _
Inspired by @von_rostock
