a(href="http://www.hexenspiel.de/engl/synchronous-chess/") Synchronous chess
| , modified to allow en-passant captures
| and disable the "exchange of captures" stage.
a(href="http://www.hexenspiel.de/engl/synchronous-chess/") Synchronous chess
| , modified to allow en-passant captures
| and disable the "exchange of captures" stage.