Furiten: Difference between revisions

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== Rules ==
== Rules ==
{{main|Defense}}


A player with a tenpai hand is furiten if at least one of the conditions below applies -- discard-based furiten, permanent furiten, or temporary furiten.
A player with a tenpai hand is furiten, as indicated by the [[discard pile]].  Basically furiten subjects a player under these two conditions:


* Players in furiten may not win by ron, even if they have a yaku. Declaring ron while in furiten is penalized with a [[Chombo|chombo payment]].
# Players in furiten may not win by ron, even if they have a yaku. Declaring ron while in furiten is penalized with a [[Chombo|chombo payment]].
* Players in furiten may still win by tsumo.
# Players in furiten may still win by tsumo.


The furiten rule does not consider [[yaku]]. Sometimes, a hand can be completed with several tiles, but only some of them provide a yaku, others would produce a yakuless hand. If a yakuless tile appears, it must be ignored, because a winning hand must contain a yaku. The player must remain temporarily furiten.
The furiten rule does not consider [[yaku]]. Sometimes, a hand can be completed with several tiles, but only some of them provide a yaku, others would produce a yakuless hand. If a yakuless tile appears, it must be ignored, because a winning hand must contain a yaku. The player must remain temporarily furiten.


=== Discard-based furiten ===
=== Furiten in general ===


A player is furiten, if a winning tile is present in one own's [[discard pile]].  It does not matter whether this tile would have provided a yaku or not. Tiles turned sideways within open melds are considered part of their discarder's discard pile.
A player is furiten, if a winning tile is present in one own's [[discard pile]].  It does not matter whether this tile would have provided a yaku or not. Tiles turned sideways within open melds are considered part of their discarder's discard pile.
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=== Furiten during riichi ===
=== Furiten during riichi ===
{{main|Riichi}}<br>
{{main|Riichi}}
{{main|Defense}}


A riichi declarer is furiten when he has missed a chance to call ron against a winning tile after his riichi declaration. The ignored winning tile may have been a discarded tile or a [[Chankan|tile used to extend a minkou to a shominkan]].  The player will remain furiten for the rest of the hand and thus cannot call ron on any tile. Furiten applies even, if it is a different tile than the ignored one. This rule requires knowledge of all own [[machi|possible waits]].
A riichi declarer is furiten when he has missed a chance to call ron against a winning tile after his riichi declaration. The ignored winning tile may have been a discarded tile or a [[Chankan|tile used to extend a minkou to a shominkan]].  The player will remain furiten for the rest of the hand and thus cannot call ron on any tile. Furiten applies even, if it is a different tile than the ignored one. This rule requires knowledge of all own [[machi|possible waits]].
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