## {4,4}, square 1F + domino 1F, solution 9
e2.
angleunit(pi/2)
# the line below lets us specify internal angles
angleofs(pi)
unittile(1,1,1,1)
unittile(1,1,2,1,1,2)
# the Conway notation
conway("[0 1](2 0')(3 1')(2' 5')(3')(4')")
sublines(1)