Connect 12 dots without lifting pen from paper. Response & Generalization: CTK Exchange from Interactive Mathematics Miscellany and Puzzles

Subject: Re: Connect 12 dots
Date: Thu, 15 Jul 2000 17:15:45 -0700 (PDT)
From: Jacob Mandelson

Here's a solution to the Five Lines puzzle that ends where it starts. Please excuse my poor computer artistry, you can probably draw up a better image.