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Gyakuten: Difference between revisions
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[[Image:Ron question.png|right|thumb|250px|Discarded winning tile may not be enough for [http://tenhou.net/0/?log=2014073113gm-0089-0000-b078ae6a&tw=0 gyakuten].]] | [[Image:Ron question.png|right|thumb|250px|Discarded winning tile may not be enough for [http://tenhou.net/0/?log=2014073113gm-0089-0000-b078ae6a&tw=0 gyakuten].]] | ||
'''Gyakuten''' {{kana|逆転}} ("comeback") is when a player improves their placement during the [[oorasu|last hand]]. [[Score table memorization|Knowledge of the points table]] is particularly helpful: it can help determine the needed tile composition, if you can [[naki|open]] the hand, if you need to call riichi, and other key decisions. In any case, like most things in Mahjong, at least a little luck is required. | '''Gyakuten''' {{kana|逆転}} ("comeback") is when a player improves their placement during the [[oorasu|last hand]]. | ||
[[Score table memorization|Knowledge of the points table]] is particularly helpful for pulling a comeback: it can help determine the needed tile composition, if you can [[naki|open]] the hand, if you need to call riichi, and other key decisions. In any case, like most things in Mahjong, at least a little luck is required to win. | |||
==Strategy for oorasu== | ==Strategy for oorasu== | ||
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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 7900 points with riichi ippatsu mentsumo dora 1. You should try to guarantee a comeback without any bonus han. However, if you have no reasonable way to do so, go for a riichi and hope you get enough points. 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. | 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 7900 points with riichi ippatsu mentsumo dora 1. You should try to guarantee a comeback without any bonus han. However, if you have no reasonable way to do so, go for a riichi and hope you get enough points. 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 niche 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. | ||
==Score differences== | ==Score differences== | ||
In the last hand of the game, players are likely to only have one chance to win. Therefore, awareness of the point differences and the [[scoring table]] are key. | |||
The following table displays the minimum han/fu value required to surpass a leading player that is 'X' points ahead of you. Note that as you take points from everyone when you tsumo, the required han/fu value for tsumo is lower than a non-direct hit ron. | |||
{| class="wikitable" | {| class="wikitable" | ||
|+Gyakuten table | |+Gyakuten table | ||