Singleton → Portuguese. A singleton is in mancala games a pit containing a single seed or just the single counter in such a hole. In most two-cycle games a move cannot start from a singleton. * If the captures are removed from the board, singletons may be moved, if there are no pits which contain more than one counter. Usually the seed can only be played if the following pit is empty. * If the captures are re-entered on the board, singletons may never be moved. An exception is Kisolo.