## {4,4}, tromino 1F + tromino 1F, solution 42
e2.
angleunit(pi/2)
# the line below lets us specify internal angles
angleofs(pi)
unittile(1,1,2,2,1,1,2,2)
unittile(1,1,2,2,1,1,2,2)
# the Conway notation
conway("[0 5](1 2')[2 7'][3 0'](4 5')[6 3'][7 4'][1' 6']")
sublines(1)