If you had a Java-capable browser, ` you could play Chad here.
Keys "s"=save "l"=load "b"=back once

Christiaan Freeling's game. Kings may not leave their castles. Check & checkmate as usual, but actual captures except by the king only occur between a defender in the castle and an attacker on the castle wall. Rooks stopping in enemy castle become queens.

Chad and other games -- inventor's site

Chess Variants

Meet Ed

These are simple illustrations rather than strong opponents.

Bug reports? -- Thank you! Keep them coming!