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