## {4,4}, tetromino 2 (L), solution 23 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 6)[2 8][3 9][5 7]") sublines(1)