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'''Multiple ron''' is a case where a player's discarded tile (or a tile added to a [[chankan|kan]]) has been [[ron|claimed for a win]] by more than one player. Most often, this involves the situation of '''double ron'''. In rare cases, it can also involve '''triple ron'''. The exact handling of the situation depends on the [[rule variations]] in use.
'''Multiple ron''' occurs when a player's discarded tile (or a tile added to a [[chankan|kan]]) has been [[ron|claimed for a win]] by more than one player. '''Double ron''' is more common, but '''triple ron''' can also occur. The exact handling of the situation depends on the [[rule variations]] in use.


==Multiple Wins==
==Rule variations==
There are three main variations to multiple ron:
* '''Double ron allowed, no triple ron''': Up to two players can ron a tile. If three players ron, an [[abortive draw]] occurs (known as ([[sanchahou]]).
* '''Triple ron allowed''': Up to three players can ron a tile.
* '''[[Atamahane]]''': Only one player can ron. The player closest in turn order to the ron'd player gets priority.


One variation is to award a win to every player with a winning hand. In this instance, the losing player pays for each winning hand separately.
If triple ron is forbidden, then there is an extra (uncommon) rule variation. Under this variation, when a double ron occurs, the final player must reveal their hand to prove that they could not have legally called ron (including due to [[furiten]]). If they could have, then the hand is still an abortive draw. This rule is to prevent a player from choosing not to call ron after hearing that two other players have done so.


The exact handling of [[riichi|riichi bets]] and [[renchan]] is subject to further variation. Usually, the riichi bets are awarded to the leftmost player who won (that is, the player whose turn would come next). If the other winning player(s) had declared riichi, they may be allowed to reclaim them, or they may all go to the same player.
===Riichi & Renchan===
When multiple ron is allowed, the handling of [[riichi]] bets and [[renchan]] is also subject to variation.


Under some rulesets, if [[oya]] is one of the multiple winners, this will always result in a renchan. Under others, the deal will rotate unless oya is the leftmost winner.
Riichi bets:
*All riichi bets go to the player closest in turn order.
*Players currently in riichi gain their riichi bets back; leftover bets are given to the player closest in turn order.  


==Atamahane==
Renchan:
{{main|Atamahane}}
*So long as the [[dealer]] is one of the winners, a renchan occurs.
*A renchan only occurs if the dealer is the leftmost player.


An alternate common variation, called ''atamahane'' (head bump) is to award a win only to the leftmost player (that is, the player whose turn would come next). All other wins are ignored.
==Chombo==
{{main|Chombo}}
 
If a player declares a false win at the same time as another player declares a real one, the chombo penalty is usually nullified. Some rulesets may, however, retain the full penalty, or provide that a lesser penalty be paid.


==Scoring treatment==
==Rule used in different venues==
Wins may be treated differently according to the rules in effect in a pro league, a jansou (or chain), a game server, or an organization.
Wins may be treated differently according to the rules in effect in a pro league, a jansou (or chain), a game server, or an organization.
{| class="wikitable sortable"
{| class="wikitable sortable"
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1. Please note that many organizations use head bump rules. These include...<br/>
1. Please note that many organizations use head bump rules. These include...<br/>
2. "Priority" designates current player priority (from discarder: Right > Across > Left), and not game seating priority as used to split ties on Tenhou (starting: East > South > West > North).
2. "Priority" designates current player priority (from discarder: Right > Across > Left), and not game seating priority as used to split ties on Tenhou (starting: East > South > West > North).
==Chombo==
{{main|Chombo}}
If a player declares a false win at the same time as another player declares a real one, the chombo penalty is usually nullified. Some rulesets may, however, retain the full penalty, or provide that a lesser penalty be paid.
==Sanchahou==
{{main|Sanchahou}}
The final variation, applicable only in the case of triple ron, is called ''sanchahou''. If this rule is being used, a triple ron results in an [[abortive draw]] and the hand is replayed. The player who was called off of escapes having to pay for three hands.
Under an uncommon rule variation, if a double ron occurs, the final player must reveal their hand to prove that they could not have legally called ron (including due to [[furiten]]). If they could have, then the hand is still an abortive draw. This rule is to prevent a player from choosing not to call ron after hearing that two other players have done so.


[[Category:Game rules]] [[Category:Rule variations]]
[[Category:Game rules]] [[Category:Rule variations]]
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