## {4,4}, pentomino 12 (P), solution 11
e2.
angleunit(pi/2)
# the line below lets us specify internal angles
angleofs(pi)
unittile(1,1,2,2,1,2,1,2,1,3)
# the Conway notation
conway("(0)(1 9)[2][3][4](5 6)[7][8]")
sublines(1)
sublines(2)