(related to Problem: The Dissected Circle)

It can be done in twelve continuous strokes, thus: Start at $A$ in the illustration, and eight strokes, forming the star, will bring you back to $A;$ then one stroke around the circle to $B,$ one stroke to $C,$ one round the circle to $D,$ and one final stroke to $E$ — twelve in all. Of course, in practice the second circular stroke will be over the first one; it is separated in the diagram, and the points of the star not joined to the circle, to make the solution clear to the eye.


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Project Gutenberg

  1. Dudeney, H. E.: "Amusements in Mathematics", The Authors' Club, 1917

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