I started writing Puzzlets because I am fascinated both by recreational maths problems and computer programming. I wanted to design puzzles that were either impossible or at least difficult to solve by conventional means.
To a large extent, I believe that objective has been met. However, every so often a way of solving one of the Puzzlets by hand that I never thought of turns up. If you dream up such a solution, I'd be very interested to see it.
From time to time, a better analysis of a problem turns up, or a simpler way of coding the solution. Once again, please share this with me - I'm always grateful for an opportunity to improve my technique and learn new things.