What is the minimum number of strokes to reproduce the drawing below without lifting up the pencil from the paper (no tricks at all), and without passing over a line segment (or part of it) already drawn? You may begin and end wherever you like, and line segments may cross each other, but only as intersections.

Note: a new stroke occurs when a line type ceased because you have to stop and change direction.

(In reply to re: Improved solution...is bogus by Mindrod)

Yes, you're correct.  I don't read very carefully, no.

That said, I still think it's an elegant solution... to the wrong problem.

Posted by Tristan on 2005-11-25 21:31:52