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This yakuman requires four kan calls. As a result, the hand in [[tenpai]] always uses [[Tanki|hadaka tanki]]. In order to call a single kan, a player must draw at least 3 out of 4 of a single tile type under any of these three scenarios: | This yakuman requires four kan calls. As a result, the hand in [[tenpai]] always uses [[Tanki|hadaka tanki]]. In order to call a single kan, a player must draw at least 3 out of 4 of a single tile type under any of these three scenarios: | ||
* A player has a pair and calls pon. Then draws the fourth to [[shouminkan|call kan]].t | |||
* A player has a closed triplet and [[daiminkan|calls kan]] on a discarded fourth. | * A player has a closed triplet and [[daiminkan|calls kan]] on a discarded fourth. | ||
* A player draws all four of a tile type and [[ankan|calls kan]]. | * A player draws all four of a tile type and [[ankan|calls kan]]. | ||
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For this yakuman, a player must repeat any of those kan calls four times. This yakuman is the most difficult yakuman to attain tenpai, let alone score. | For this yakuman, a player must repeat any of those kan calls four times. This yakuman is the most difficult yakuman to attain tenpai, let alone score. | ||
*You must obtain a total of 4/4 tiles of four different types. If any tile is rendered unavailable (e.g. in an opponents hand, in the dead wall), the hand is practically impossible. | *You must obtain a total of 4/4 tiles of four different types. If any tile is rendered unavailable (e.g. in an opponents hand, in the dead wall), the hand is practically impossible. | ||
*You must obtain 3/4 tiles of four different types by self draw. This feat is already worth a yakuman, that being [[suuankou]]. | **You must obtain 3/4 tiles of four different types by self draw. This feat is already worth a yakuman, that being [[suuankou]]. | ||
*After the third kan, any other player may call kan to trigger the [[suukaikan]] hand abortion (if the ruleset allows abortive draws). | *After the third kan, any other player may call kan to trigger the [[suukaikan]] hand abortion (if the ruleset allows abortive draws). | ||
*Calling four kans adds four kan dora, which will greatly boost the value of others' hands. | *Calling four kans adds four kan dora, which will greatly boost the value of others' hands. |
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