In this maze (adapted from
Robert Abbott's
original), when you click on either of the two highlighted boxes, its
instructions are examined and determine, when applied, the path by
which you will leave the box. The green arrows represent
yes paths, and the red ones,
no paths. Your task is to reach the
Goal box. Note that the instructions in boxes 60 and
65 begin to apply only when you leave the box, not when you enter it.
Also, when the two boxes overlap, the "other box" turns out to refer
to the same location. (Mail your questions or comments to
Luc St-Louis.)