## {4,4}, square 1A2 + tromino 2A, solution 1
e2.
angleunit(pi/2)
# the line below lets us specify internal angles
angleofs(pi)
unittile(1,1,1,1)
unittile(1,1,2,1,2,1,1,3)
# the Conway notation
conway("(0 3)(1 0')(2 7')(1' 6')(2' 5')(3' 4')")
sublines(1)