## {4,4}, pentomino 6 (W), solution 15
e2.
angleunit(pi/2)
# the line below lets us specify internal angles
angleofs(pi)
unittile(1,1,2,1,3,1,2,1,1,3,1,3)
# the Conway notation
conway("(0 8)[1 3][2 7](4 6)(5)(9 11)(10)")
sublines(1)