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