Tochuu ryuukyoku: Difference between revisions

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[http://tenhou.net/0/?log=2014021417gm-0009-7447-00d6d80f&tw=3&ts=5 Example]
[http://tenhou.net/0/?log=2014021417gm-0009-7447-00d6d80f&tw=3&ts=5 Example]


[[Kan]] is called four times by different players. If all four quads are called by one player, play continues as to give the player the opportunity to score the yakuman, [[suu kantsu]]. No other players are allowed to declare kan from then on. If the four quads have been formed by more than one player, hand abortion after formation of the fourth quad depends on the rules.
Suu kaikan(四開槓), literally means open (kai) four (suu) kans, is declared when four kans are formed by different players. If all four quads are called by one player, play continues as to give the player the opportunity to score the yakuman, [[suu kantsu]]. No other players are allowed to declare kan from then on. If the four quads have been formed by more than one player, hand abortion after formation of the fourth quad depends on the rules.


* Most rules abort the hand when the following discard is not a winning tile.
* Most rules abort the hand when the following discard is not a winning tile.
* Some rules end the game already on declaration of the fourth quad.
* Some rules end the game already on declaration of the fourth quad. If the fourth quad is [[chankan|robbed]], the quad is not considered formed and ron is counted.
* Some rules may allow the game to go on, as if all quads had been declared by a single player. Usually, a fifth kan may not be declared at all, but when it is allowed, it immedeately aborts the game on its declaration.
* Some rules may allow the game to go on, as if all quads had been declared by a single player. Afterwards, two options are available:
** No one may call kan again
** The ''ura dora'' indicator tiles are used starting from the fifth kan, in this case, no ''ura dora'' is available.


===Sanchahou===
===Sanchahou===
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