## {4,4}, domino 1F + tromino 2F, solution 21
e2.
angleunit(pi/2)
# the line below lets us specify internal angles
angleofs(pi)
unittile(1,1,2,1,1,2)
unittile(1,1,2,1,2,1,1,3)
# the Conway notation
conway("(0)(1 6')[2][3](4 0')(5 7')[1'](2' 3')[4'][5']")
sublines(1)