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Kan: Difference between revisions
→Restrictions
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Some restrictions apply to kan calls. The restrictions are based on tile counts and rules pertaining to riichi itself. | Some restrictions apply to kan calls. The restrictions are based on tile counts and rules pertaining to riichi itself. | ||
=== | ===Abortive draw=== | ||
When [[tochuu ryuukyoku|abortive draws]] are used, [[suukaikan|four kan calls]] causes an abortive draw, unless they were all made by the same player. When the same player makes [[Suukantsu|all four calls]], then no more calls for kan can be made until the next hand. Part of the kan process involves drawing from the dead wall. However, the dead wall only allots four tiles for this procedure. Naturally, when none are left, then the call for a "fifth kan" cannot be made. | |||
===Kan during riichi=== | ===Kan during riichi=== | ||
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In this case, the 3p does not form a [[koutsu|triplet]], but rather a pair and a part of a sequence. A kan on the 3p would remove this potential interpretation of the hand, and is therefore forbidden. | In this case, the 3p does not form a [[koutsu|triplet]], but rather a pair and a part of a sequence. A kan on the 3p would remove this potential interpretation of the hand, and is therefore forbidden. | ||
=== | ===Last tile=== | ||
Kan cannot be called after drawing the [[Haiteihai|last tile]], as the live wall is empty and so a tile cannot be moved to the dead wall. Part of the kan process requires live tiles from the end of the wall to be transferred to the dead wall. If this is not possible, then kan is not possible. | |||
===Tile calls=== | |||
After [[naki|taking a discarded tile]], a player cannot call kan, even if a player has the tile(s) available in hand to do so. The next opportunity to call kan comes after the next tile draw. This does not apply when a daiminkan is called, as the kan causes a tile to be drawn immediately. | After [[naki|taking a discarded tile]], a player cannot call kan, even if a player has the tile(s) available in hand to do so. The next opportunity to call kan comes after the next tile draw. This does not apply when a daiminkan is called, as the kan causes a tile to be drawn immediately. | ||
==Suukaikan== | ==Suukaikan== | ||