Go (game)
Go is an abstract strategy board game for two players, in which the aim is to surround more territory than the opponent. The game was invented in China more than 2,500 years ago and is believed to be the oldest board game continuously played to the present day. 
A 2016 survey by the International Go Federation's 75 member nations found that there are over 46 million people worldwide who know how to play Go and over 20 million current players, the majority of whom live in East Asia.
Ombre
Ombre () is a fast-moving seventeenth-century trick-taking card game for three players. Its history began in Spain around the end of the 16th century as a four-person game. It is one of the earliest card games known in Europe and by far the most classic game of its type, directly ancestral to Euchre, Boston and Solo Whist. Despite its difficult rules, complicated point score and strange foreign terms, it swept Europe in the last quarter of the 17th century, becoming "Lomber" in Germany, "Lumbur" in Austria and "Ombre" (originally pronounced 'umber') in England, occupying a position of prestige similar to contract bridge today.