6. Even Einstein Enjoyed Playing Mahjong.

Einstein praised mahjong in his diary as "a far more profound and philosophical game than Western chess or bridge," and noted that he was captivated by the fun of calculating complex probabilities and combinations. Mahjong can be broadly divided into Riichi Mahjong, Chinese Official Mahjong, and Korean Mahjong, with Riichi Mahjong being the most famous. Riichi Mahjong does not use flower tiles, and features special hands like Riichi and a special rule called Furiten. Chinese Official Mahjong uses 8 flower tiles and has the no-point rule and the 8-point rule. Under the no-point rule, a player can declare a win regardless of score, while the 8-point rule requires players to form a hand worth 8 points or more. Korean Mahjong uses 4 flower tiles and only uses the manzu (bamboo) and pinzu (dot) suits. Therefore, some hands like Sanshoku Doujun (all same suit, sequential) or Chinrohto (all terminals and honors) do not exist, and the game is characterized by its extremely fast pace. If you're going to play Korean Mahjong, you might as well play a 3-player Riichi Mahjong game. Chinese Official Mahjong has clunky discarding, so Riichi Mahjong is much better.