Sovereign Chess Sovereign Chess Sovereign Chess is a commercial chess variant designed by Mark Bates and produced by Infinite Pi Games. The game is played on a 16 x 16 board and begins with 112 pieces—a normal complement of white and black pieces (16 each), and 80 other colored pieces (8 each of 10 different colors). The colored pieces are considered “neutral” at the beginning of the game, and can not initially be moved nor captured. The center of the board contains an arrangement of 24 colored squares (2 each in every color, including white and black), which determine control of the
Portal Chess starting location of these portals can be different when the game begins, but the image shows the standard set-up. In this game the portal pieces move around by very specific rules. This version of the game has "player-controlled portals", which are linked to each other. The rules for these portals are worked out as though they make the squares they cover into one square. In the set up to the right, a5 and e4 can be conceptualized as the same square. The specific rules for portal use are as follows: Portal Chess Portal Chess is a chess variant which uses