Got some new screenshots to share.
Recommended background music: https://www.youtube.com/watch?v=Mzz0qPg02Ts
For starters I chose this situation from a Maru-Jan game by Ooi Takaharu. Faced with two Riichi, he decides to counterattack. Now, normally, with such a low value hand, we’d prioritize our point gain rather than better wait. We’d Riichi with a 1m Nan shanpon wait. When it comes to okkake Riichi, better wait is the priority. In this case: ryanmen 36m.
How would you play here?
Master, we’re in a tight spot! This is one of those times when declaring Riichi puts me in 4th place temporarily (or permanently xD). My ryanmen wait has 3 outs and it includes Toimen genbutsu tiles. I guess there’s no other choice but Riichi, right?
If we take pure tile efficiency into account, 2m is the best discard here. However, our shapes in Souzu are not excellent. I think it’s a good idea to keep 2m in hopes for more low Manzu tiles & Ittsuu. Following Daina Chiba’s theory – it’s better to discard 9s because kanchan 79 is a bit stronger than Penchan 112 as it can improve to ryanmen. Penchan needs its pair more. On the other hand – if we’re aiming for Ittsuu here, we will most likely only need a pair in Souzu, so perhaps it doesn’t matter much here.
Another reason to focus on Manzu tiles is possible Honitsu to the right.
Does that make sense here?
That’s all for today.
May Yakuman be with you!