Hi all, thank you for checking this website.
This article describe 2 typical case when discarded tile of Riichi is honor tile.
Please see the situation below. The player across just riichi-ed with South wind. This tile is discarded from hand: Tedashi. What can you read from this info ?
4p seemed to be useless for him, and he kept South wind as safety tiles. In this case, he is likely to have Ryanmen Ryanmen iishanten: 2 tiles to win. So we can discard Suji easier than usual.
Exactly, his wait was Ryanmen. Below is a different case of riichi declaration with an honor tile.
How do you read this hand ? Yes, typical Chii-toitsu: 7 pairs. If you want to learn how to read Chii-toitsu, please refer to the link below. I assume it is important to judge whether the opponents’ hand is Chii-toitsu or not. https://riichi-mahjong.com/2020/01/11/mahjong-strategy-hand-reading-chi-toitsu-7-pairs/
I had North wind and I could see 3 of them, but never considered to discard this tile.
Hope this article will be of some help to you !