BLADDER combines elements of the 2 most popular pastimes ever, Chess and Football (i.e. REAL football, what Americans call soccer!), recreating the total mayhem of village games during the time of King James ...14 playing pieces per side. Bladder is very much a game of two halves. Positional maneuvering in the first half preceding the picking up of the bladder followed by the more fluid passing and elimination action of the second half.