When the mate is released, he can resume play. When his king is in check, a player must resolve it himself - he cannot wait for his partner to resolve the check on his own king. The first member of this family, described in The Encyclopedia of Chess Variants is dated at 1784. The inventor is only known by initials K.E.G. and place Dessau. In this variant, all queens are on white squares in the opening setup.
Pawns have no initial double step.
When a player is released from mate, his pieces may not be taken until after his next move. In this variant, pawns on rooklines are not allowed to capture each other from their starting position. More variants Almost twenty similar games are mentioned to have appeared in the period till 1880 in The Encyclopedia of Chess Variants . The game was popular mostly in Germany and Great Brittain, but also in other countries, like the United States. More In 1881, one of the most well known and widely played four handed chess variants appeared in London.