## {4,4}, tetromino 2 (L), solution 24
e2.
angleunit(pi/2)
# the line below lets us specify internal angles
angleofs(pi)
unittile(1,1,2,1,2,2,1,1,2,3)
# the Conway notation
conway("[0 4][1 7][2 8][3 9](5 6)")
sublines(1)