Chess is no longer a battle, it's a war! Product Description 20" x 20" board, 1 set gold, black, silver, ivory men, King measures 2.5", Includes rules for Chess Four and traditional chess From the Manufacturer Chess 4 allows four players. Same rules, same playing pieces, just played by up to four people. Chess Four is the world's most accepted non-traditional chess set. Can be used to play traditional chess as well.