>>530817771
>>530817782
>>530817790
>>530817912
>>530817981
>>530817989
Ippatsu and ura 3 gives you a much-deserved dealer haneman.

Given that gyaru has called pei twice, you’re facing a ryanmen haneman+ on average. Chasing with shanpon 7700 seems like only a quarter of their EV (several yonma push-fold standards advise you not to chase without at least half). Furthermore, dealing in here almost guarantees last place.
But when it comes to sanma push-fold standards for oikake riichi, a huge part of the danger comes solely from the riichi declaration tile; it feels like half the time that’s exactly what deals you in. When you have a safe entry to tenpai, minimum han value for oikake drops severely. This summary of Miinin’s Data Sanma book has more details: https://note.com/starmine_mj/n/n75d9700a3e20
In this instance, I already fulfill the minimum 1-2 han as dealer, and live terminal shanpon is very appealing.

I was surprised that the bot agrees so strongly with me. Extreme aggression is deceptively effective in sanma. It’s impossible to avoid frequent last places in sanma no matter how perfectly and defensive you play, so the only way to offset it is with stealing as many 1sts as you can.

>>530818334
The ton was drawn very late into the game, every discard to that point has been a relatively safe mawashi. Even after being forced to cut pei against riichi in sanma, it's not uncommon to accidentally end up back in tenpai.