| Rational Mathematics — The start of a course of basic finite mathematics. Moved here January 2009. |
| The Games and Puzzles Journal — Links to online Journal, and to PDF versions of other Publications. |
| Knight's Tour Notes and Chessboard Dissections — Studies in chessboard geometry. |
| Variant Chess — Links to my work in Variant Chess problems and games. |
| History of Ideas — and Overview of Science — Moved here February 2009. |
| Miscellaneous Essays — Wordplay — Reality — Fantasy — Moved here March 2009. |