Gyakuten: Difference between revisions

(improve the page. simplify intro. add riichi subsection. note honba & riichi bets)
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==Strategy for oorasu==
==Strategy for oorasu==
The term "gyakuten" normally applies to the last hand of the game. In the last round, once a non-dealer wins, the game ends, and placement is finalized. Therefore, even a 100 point difference can matter. Lower players must develop a hand that gives enough score to pass the higher ranked players. On the other hand, players with their desired standing must find a way to retain their position at the end of the game, either by winning the final hand or simply avoiding losing points.
The term "gyakuten" normally applies to the last hand of the game. In the last round, once a non-dealer wins, the game ends, and placement is finalized. Therefore, even a 100 point difference can matter. Lower players must develop a hand that gives enough score to pass the higher ranked players. On the other hand, players with their desired standing must find a way to retain their position at the end of the game, either by winning the final hand or simply avoiding losing points.
Gyakuten is important because placement is itself important. Thanks to [[oka]] and/or [[uma]], a player can receive a large bonus for rising up a rank. Conversely, players can lose a lot if they fall in rank. In some types of play, such as certain tournaments or [[tenhou.net ranking|tenhou.net's dan]] ranking, final placement is the only thing that matters.


===Riichi===
===Riichi===
If an open version of a hand is enough to improve your placement, no matter how it's won, then open the hand for the extra speed. Similarly, if you can guarantee improvement with a [[damaten]] hand, then do that.
If an open version of a hand is enough to improve your placement, no matter how it's won, then open the hand for the extra speed. Similarly, if you can guarantee improvement with a [[damaten]] hand, then do that.


Riichi gives 1 han, plus random bonuses via [[ippatsu]], [[ura dora]], and/or [[mentsumo]]. If you're particularly lucky, a riichi-only hand can turn into mangan with riichi ippatsu mentsumo dora 1. At the same time, opponents will be especially wary of a riichi in the last round, precisely because they don't want to lower their placement. You should still riichi, though, if it would let you improve placement with a ron, a non-direct ron, or a tsumo.
Riichi gives 1 han, plus random bonuses via [[ippatsu]], [[ura dora]], and/or [[mentsumo]]. If you're particularly lucky, a riichi-only hand can turn into mangan with riichi ippatsu mentsumo dora 1. You should try to guarantee a combeack without any bonus han, but if you have no way to do so, they might give enough points to win. At the same time, opponents will be especially wary of a riichi in the last round, precisely because they don't want to lower their placement.


In some cases, the 1000 point riichi bet is enough to drop you down a placement. If you have another yaku, you should usually go dama. If you don't have a yaku, then riichi is still worthwhile if you have a good wait. Since the trailing player is only 1000 points behind, any win they make would be enough for you to drop down, so you should still try to win.
In some cases, the 1000 point riichi bet is enough to drop you down a placement. If you have another yaku, you should usually go dama. If you don't have a yaku, then riichi is still worthwhile if you have a good wait. Since the trailing player is only 1000 points behind, any win they make would be enough for you to drop down, so you should still try to win.
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