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Chankan: Difference between revisions
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*In almost all cases, players cannot ron off an [[ankan]] (closed kan). The notable exception is with a [[kokushi]] [[tenpai]] hand. For kokushi, the last tile needed for the yakuman may be won from an opponent's ankan. However, in [[Rule_variations#Kokushi_and_chankan|some rules]], kokushi cannot win in this way. | *In almost all cases, players cannot ron off an [[ankan]] (closed kan). The notable exception is with a [[kokushi]] [[tenpai]] hand. For kokushi, the last tile needed for the yakuman may be won from an opponent's ankan. However, in [[Rule_variations#Kokushi_and_chankan|some rules]], kokushi cannot win in this way. | ||
*It is impossible to ron off an [[Kan#Daiminkan|daiminkan]] (open kan). | *It is impossible to ron off an [[Kan#Daiminkan|daiminkan]] (open kan). When a tile is discarded, it can either be used for ron, or it can be used to complete the kan. Ron takes precedence over kan, so the player wins before the kan is made. If the ron call is skipped, you cannot retroactively ron after the kan is made. | ||
In other words, an opponent must call [[pon]] before your hand wins, then draw the fourth copy of that tile, then call the added kan. An opponent must have all four copies of a tile in their hand to call added kan. Therefore, chankan becomes impossible if you are holding any copy of that tile (because then the opponent cannot gain that tile for their kan). | In other words, an opponent must call [[pon]] before your hand wins, then draw the fourth copy of that tile, then call the added kan. An opponent must have all four copies of a tile in their hand to call added kan. Therefore, chankan becomes impossible if you are holding any copy of that tile (because then the opponent cannot gain that tile for their kan). | ||