Vulcan chess
Vulcan chess was a Vulcan variant the Earth game chess. 

In 2269, Spock used a Vulcan chess piece to demonstrate his magic powers in the Megans' universe. ()

In 2373, when Harry Kim referred to kal-toh as "Vulcan chess", Tuvok commented that "Kal-toh is to chess as chess is to tic-tac-toe." ()

it:Scacchi Vulcaniani
Recreation