Torus cuts

Contributed by Mel Knight

How many ways can a torus be cut (with a single plane) so that the resulting cross sections are perfect circles?

If you are unsure of your answer you can request confirmation by emailing me at the address shown here. Please state which problem you need confirmation on clearly. Please do not email me simply for answers, the enjoyment derived from a puzzle is proportional to the time spent on it.

Return to the puzzle page index
Return to my "front" page