DVONN is not a chess variant, but it is a very interesting and deep game,
very different from other known strategic games, and the rules are
extremely simple. You don´t need purchase the game to take a first look,
you can play it just using coins or disks with three colors and you can
draw by-hand a primitive board on a paper, as I did. Making a ZRF looks
easy, I´m not sure I´m going to do that, because my time is limited in
this times, but I can´t discard the project, perhaps in a couple of weeks.
DVONN is a copyrighted game, and by this reason I´m not going to distribute
the ZRF, in the case I take the project seriously. For the rules, you can
find it in many places in Internet.
