Items Authored by Katsutoshi Seki
- Hasami Shogi. Popular Japanese game, playable with Shogi set. (9x9, Cells: 81) Author: Katsutoshi Seki.
- Southern Shogi. Shogi variant where pieces move like friendly pieces `south' of them. (9x9, Cells: 81) Author: Katsutoshi Seki.
- Chess variant site in Japanese. Many chess variant pages translated into Japanese! (Japanese Language) Author: Katsutoshi Seki.