## {4,4}, square 1R2 + tromino 1F, solution 4
e2.
angleunit(pi/2)
# the line below lets us specify internal angles
angleofs(pi)
unittile(1,1,1,1)
unittile(1,1,2,2,1,1,2,2)
# the Conway notation
conway("(0 1')(1 3')(2 1')(3 3')(0' 4')(2')(5')(6' 7')")
sublines(1)