There is one great chess variant, which is little known, but is very interesting: Anti-King Chess (invented by Peter Aronson). All rules are the same as in standard chess, except that a new piece is added: Anti-King. The Anti-King is under check when it is not attacked! It is a checkmate, if it can't leave such position. The Anti-King can't capture enemy pieces. At the start white Anti-King is placed on d6, black on d3.
I played this chess variants several times against Zillions-of-Games, but Zillions is not especially strong in it. It would be much more fun to play this chess variant on BrainKing!
(sakla) If you don't want other users to know what you are doing you can change into cloak mode in Settings (paying members only). (pauloaguia) (Bütün ipuçlarını göster)