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Chanta: Difference between revisions
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By definition, every [[mentsu|tile group]] must include a [[terminal]] or [[jihai|honor]] tile. So combinations of tile groups involving 1-2-3, 7-8-9, 1-1-1, 9-9-9, and/or any honor [[jantou|pairs]]/[[koutsu|triplet]] qualify for chanta. | By definition, every [[mentsu|tile group]] must include a [[terminal]] or [[jihai|honor]] tile. So combinations of tile groups involving 1-2-3, 7-8-9, 1-1-1, 9-9-9, and/or any honor [[jantou|pairs]]/[[koutsu|triplet]] qualify for chanta. | ||
=== | === Compatibility === | ||
While chanta can be seen as the converse of [[tanyao]], chanta is | {{main|Yaku compatibility}} | ||
{{Yaku compatibility table|CHA}} | |||
Chanta's pattern is similar to [[junchan]]; however, the two can never combine as junchan implies a chanta hand. [[Honroutou]] likewise implies chanta and is thus incompatible. Chanta with [[toitoi]] or [[chiitoitsu]] actually forms honroutou instead of chanta, while chanta with [[chinitsu]] is actually junchan instead of chanta. | |||
Chanta is incompatible with [[tanyao]] and [[ittsu]] because both of those require a group which is not a terminal or honour -- in tanyao's case, it is required of all tiles in the hand, and for ittsu, a 4-5-6 sequence is needed. | |||
==Development== | |||
While chanta can be seen as the converse of [[tanyao]], chanta is much slower. This is because the simple tiles are more [[tile efficiency|tile efficient]]. This can be measured by [[Ukeire|tile acceptance]] - the more tiles that can be used to form a sequence/pair/triplet, the higher the tile acceptance, and the more efficient the tile (generally) is. | |||
*A lone honor tile can only be used in a pair/triplet. Therefore, a lone honor only accepts itself. | *A lone honor tile can only be used in a pair/triplet. Therefore, a lone honor only accepts itself. | ||
*A lone 1 accepts 1, 2, or 3. There is no way to get a [[ryanmen]] wait off with a lone 1. | *A lone 1 accepts 1, 2, or 3. There is no way to get a [[ryanmen]] wait off with a lone 1. | ||
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*You happen to get most of the required tiles already (e.g. 123 [[sanshoku]] with other terminals/honors mixed in). | *You happen to get most of the required tiles already (e.g. 123 [[sanshoku]] with other terminals/honors mixed in). | ||
*You were going for [[kokushi musou]], but kokushi became impossible early in the round, and you are desperate to win. | *You were going for [[kokushi musou]], but kokushi became impossible early in the round, and you are desperate to win. | ||
==External links== | ==External links== | ||