kal-toh (kal-toe) is a vulcan game of logic. according to tuvok, "kal-toh is to chess as chess is to tic-tac-toe". its goal, according to him, "[i]s not about striving for balance [but] about finding the seeds of order even in the midst of profound chaos." it first appeared on "star trek: voyager", often played by tuvok and a partner.