Chess is a recreational and competitive game played between two players. Sometimes called Western chess or international chess to distinguish it from its predecessors and other chess variants, the current form of the game emerged in Southern Europe during the second half of the 15th century after evolving from similar, much older games of Indian and Persian origin. Today, chess is one of the world's most popular games, played by millions of people worldwide at home, in clubs, online, by correspondence, and in tournaments.
Tile Chess, a variant on this classic game, contains no board. The pieces appear on squares of printed cardboard and move in the same format as their traditional counterparts. With no board, however, play can expand in all directions as widely as desired. The only restriction is that the pieces must all be connected in some way, and no move may "orphan" a piece. The game accommodates up to six players, and victorious players take over their opponents' pieces until only one army remains.