Riichi strategy: Difference between revisions

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Since most of the risks of riichi only apply if the hand fails to win, having a good wait means that riichi is more desirable. Bad shape waits may be more pressured to keep the possibility of failure in mind, as well as the possibility of changing the hand into having a better wait.
Since most of the risks of riichi only apply if the hand fails to win, having a good wait means that riichi is more desirable. Bad shape waits may be more pressured to keep the possibility of failure in mind, as well as the possibility of changing the hand into having a better wait.
If you are in [[furiten]], you should be more wary about riichi. A furiten riichi with a 3-sided wait or better is typically ok. A furiten two-sided wait may work if it's early in the game.


=== Score ===
=== Score ===
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{{#mjt: 123m345p888p4449s}} Waiting for: {{#mjt: 9s}}
{{#mjt: 123m345p888p4449s}} Waiting for: {{#mjt: 9s}}


You could upgrade the hand to a two-sided or better wait with: {{#mjt: 14m235679p2356s}}, which is up to 48 tiles. When considering the number of upgrades, you should consider every visible tile. You must also be watch out for [[furiten]].
You could upgrade the hand to a two-sided or better wait with: {{#mjt: 14m235679p2356s}}, which is up to 48 tiles. When considering the number of upgrades, you should consider every visible tile. You must also watch out for [[furiten]].


As the round progresses, you should be more willing to riichi than to wait for an upgrade; you don't have as much time to wait for an upgrade.
As the round progresses, you should be more willing to riichi than to wait for an upgrade; you don't have as much time to wait for an upgrade.
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First, damaten has better control over [[yasume]]. If a riichi hand wins off a bad wait, you have to accept it or enter furiten. However, since riichi adds an average of around 1.5 han, this is only an issue if the waits differ by 3+ han. Even then, you may want to riichi despite this.
First, damaten has better control over [[yasume]]. If a riichi hand wins off a bad wait, you have to accept it or enter furiten. However, since riichi adds an average of around 1.5 han, this is only an issue if the waits differ by 3+ han. Even then, you may want to riichi despite this.


Second, a damaten hand can try and target a specific player. You may want to ron to get a player below 0 points, ending the game immediately. Or you may wish to avoid calling ron on a player with 0 points, to not end the game. This can also be done to [[gyakuten|change placement]] (e.g. targeting 1st place as 2nd). However, since riichi gives a hefty point bonus, it might change placement even if you tsumo or ron the "wrong" player.
Second, a damaten hand can try and target a specific player. You may want to ron to get a player below 0 points, ending the game immediately. Or you may wish to avoid calling ron on a player with 0 points, to not end the game. This can also be done to [[gyakuten|change placement]] (e.g. targeting 1st place as 2nd). However, since riichi gives a hefty point bonus, a riichi hand might improve your placement even if you tsumo or ron the "wrong" player.


=== Game round ===
=== Game round ===
683

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