## {4,4}, square 1A1 + tromino 1A2, solution 3
e2.
angleunit(pi/2)
# the line below lets us specify internal angles
angleofs(pi)
unittile(1,1,1,1)
unittile(1,1,2,2,1,1,2,2)
# the Conway notation
conway("(0 1')(1 0')(3 2')(2 5')(3' 4')(7' 6')")
sublines(1)