## {4,4}, square 1R4 + tromino 2F, solution 1
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 1')(2 1')(3 1')(0' 6')(2' 5')(3' 4')(7')")
sublines(1)