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