Though officially retired as a writer of engineering software, I occasionally design web sites. Possibly I am better known as the author of various board games and puzzles including Black Box, Thoughtwave, Sigma File, Entropy (Hyle 7), Billabong, Alaska, Hexagrams, etc. This site provides a number of my Java games and puzzles for your enjoyment. If you want to include any of these on your own site please contact me first.