Play chess in teams of 2, 3 or 4 armies a side on one long board, with friends or bots, in your browser. Every player commands a full army. No download, no sign-up.
Checkmate every enemy king at the same time. A mated army skips its turns until a teammate frees it.
Every checkmate takes an army off the board, with all its pieces.
Start your turn with your king on a hill, out of check, to win.
White storms the keep and takes the throne; Black holds out to the last round.