If a mental challenge is was you want, a mental challenge is what you'll get from the ancient game of Mahjong. Often called the "game of a hundred intelligences" because of its much needed concentration, Mahjong is a game that's over two thousand years old. It is said to originate in China, played in the court of the King of Wu. This is a great travel set that comes in a heavy duty, deluxe, black vinyl case for storage!