/jp/ - Otaku Culture

This game:
http://tenhou.net/0/?log=2016032313gm-00a9-0000-a1e2e52f

To answer this inquiry:
>Still don't understand why 9 dan discarded 4 and 5 man against riichi without a second thought in the last round and then suddenly started folding after getting tenpai

The answer is simple. His main priority is to retain the lead.

9-dan with an 11400 point lead over 2nd place. The last thing he wants to do is discard the isolated 9-man dora late, if it ever comes to that. As for 6-man, it's along the 6-9 suji. So, he gets rid of that too. This is all just in case 9-dan himself gets to tenpai. Given the potential path to tenpai, both of these tiles may get in the way.

Given the conditions, he doesn't even need tenpai. But it's nice to have.

After all, toimen is sitting at a depressing 900 points. So, almost any tsumo by anyone pretty much kills him.

Houou sure is fun.