## {4,4}, square 1F + tromino 1F, solution 13
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 0')(1 5')(2 4')[3 2'][1' 3'](6' 7')")
sublines(1)