>>99470033Lesson 2: The Basics of Attack is Riichi.
Riichi is a fundamental yaku (hand pattern) for attacking in mahjong. Declaring riichi requires placing a 1000-point stick on the table, but it allows you to win with any hand shape once riichi is declared.
Furthermore, if you draw the winning tile yourself, you can claim Menzen Tsumo (fully concealed hand). If you win within one round after declaring riichi, you can claim Ippatsu.
Additionally, when you win, you might also get Ura Dora, which can lead to unexpectedly high scores.
For those who have first encountered mahjong on the internet, you might have pressed Pon or Chii when these options appeared on the screen, only to find that you couldn’t win because it displayed No Yaku. This happens because you lacked the necessary yaku to win.
In this regard, once riichi is declared, it counts as a yaku, so mastering riichi ensures that you will never end up with No Yaku.
When you are in a tenpai, do not hesitate to declare riichi.
In this image, the wait is only for one type of tile: the 2m. Declaring riichi has the significant advantage of allowing you to win with a yaku if another player discards the 2m. If you reach tenpai with a closed hand, don't hesitate to declare riichi.
