This week's Challenge Question:
Nearly everyone has seen the problem where you have to draw 4 straight lines through a matrix of 9 (3x3 dots) without taking the pencil off the paper and without retracing any lines. This is the solution:
This one a bit trickier; a three by four square matrix of dots: five lines PLUS you have to finish where you started. All the other obvious rules apply (the dots are infinitely small, and the lines are not infinitely long):
And the Answer is....
Here is the solution:

Comments rated to be Good Answers:
Comments rated to be "almost" Good Answers: