If you had a Java-capable browser, you could play Cohen's Error Chess here.
Keys "s"=save "l"=load "b"=back once

A chess writer described Columbia Cannon Chess and erroneously stated that cannons jumped a screen piece if and only if they captured (Chinese cannons, rather than Korean cannons).

Chess Variants

These are simple illustrations rather than strong opponents.

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

Written by Ed Friedlander