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* [http://tenhou.net/0/?log=2014032411gm-0089-0000-893e2d65&tw=1&ts=9 Chankan declined] | * [http://tenhou.net/0/?log=2014032411gm-0089-0000-893e2d65&tw=1&ts=9 Chankan declined] | ||
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'''Chankan''' {{kana|搶槓}} is a standard yaku. It is dependent on the usage of [[kan]], where a player may declare ron while a player calls to upgrade a [[koutsu|minkou]] to a [[Kan#Shominkan|shominkan]]. In other words, if a player is tenpai for a tile used for | '''Chankan''' {{kana|搶槓}} is a standard yaku. It is dependent on the usage of [[kan]], where a player may declare ron while a player calls to upgrade a [[koutsu|minkou]] (triple called via [[pon]]) to a [[Kan#Shominkan|shominkan]] (added kan). In other words, if a player is tenpai for a tile used for that specific added kan, then the player may declare a win on that tile. | ||
In almost all cases, players are not allowed to call ron on an [[Kan#Ankan|ankan]] (closed kan). The notable exception involves a [[kokushi]] [[tenpai]] hand, where the last tile needed for the yakuman is called for an ankan. However, the kokushi exception varies on the rules. In [[Rule_variations#Kokushi_and_chankan|some rules]], it is disallowed outright. | In almost all cases, players are not allowed to call ron on an [[Kan#Ankan|ankan]] (closed kan). The notable exception involves a [[kokushi]] [[tenpai]] hand, where the last tile needed for the yakuman is called for an ankan. However, the kokushi exception varies on the rules. In [[Rule_variations#Kokushi_and_chankan|some rules]], it is disallowed outright. | ||