12 October 2018
- 18:0518:05, 12 October 2018 diff hist +10 Shanten Also expand the 3-shanten wait list based on the same computer program. For example, you can pick up a 2 pin, 3 pin and 6 pin while discarding the 2 sou and the isolated wind tiles. This will leave you in tenpai on a closed wait for 5 sou.
- 09:5309:53, 12 October 2018 diff hist +4 Shanten Expand the list of possible tiles to 1-shanten for the 2-shanten example. Based on a brute force search by a computer program. The basic idea is that one can discard the two useless wind tiles while building sou groups, also leading to 1-shanten hands.