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.

1. O > A (Straight),  2. A> O (Curve),  3. O > N,  4. N > J,  5. J > I, 6. I > N,  7. N > M, 8. M > F,  9. F > E, 10. E > I, 11. I > H,  12. H > M,  13. M > L, 14. L > C, 15. C > B,  16. B > E, 17. E > D, 18.  D > H, 19. H > G, 20. G > L,  21. L > K, 22. K > A (Straight) 23. A > O (Curve)

Posted by NicholasKildare on 2005-11-25 16:09:43