While most online and parlor players are accustomed to playing mahjong aka ari (with red fives), leagues and tournaments often utilize an aka nashi (no red fives) ruleset. Below are my top three tips for how to modify your gameplay when playing without red fives. 1) Pursue hand yaku With less dora, hand yaku goes up in importance. Playing with red fives pushes more hands towards tanyao and middle tiles. Without red fives, chances for yaku such as chanta, junchan, toitoi, and