length will turn out to be possible.
-\C{rectangles} \i{Rectangles}
+\C{rect} \i{Rectangles}
\cfg{winhelp-topic}{games.rectangles}
\c |......O.|
\c H........|
\c |.....O..|
-\c 12-RH---
+\c 12-RR---
As shown, it is possible for a beam to receive multiple reflections
before re-emerging (see turn 3). Similarly, a beam may be reflected