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Chanta: Difference between revisions
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==Development== | ==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| | While chanta can be seen as the converse of [[tanyao]], chanta is much slower. This is because the simple tiles are more [[tile efficiency|efficient]] for hand development. 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. | ||
*A lone 5 accepts 3, 4, 5, 6, or 7. There are two ways to get a ryanmen wait (45, 56). | *A lone 5 accepts 3, 4, 5, 6, or 7. There are two ways to get a ryanmen wait (45, 56). | ||
In addition, | As displayed above, forcing yourself to honors and terminals greatly reduces acceptance. In addition, chanta cannot use [[ryanmen]] waits at all. Chanta can accept {23} and {78}, but 1 of the 2 waiting tiles (4 or 6, respectively) will ruin chanta. Ryanmen is 2x faster than the other basic waits, so going for chanta means losing out on a big development boost. Also, in order to guarantee chanta, your hand will always end up with a bad wait (<= 4 tiles left in wall). | ||
Overall, since chanta is so slow, and only worth 2 han, it usually isn't worth the effort. Even without considering [[riichi]], there are easier ways to get 2 han, such as tanyao + [[pinfu]], pinfu + 1 dora, pinfu + [[iipeikou]], and so on. Therefore, players will rarely go for chanta. Chanta can be good to aim for when: | |||
*You need a quick hand, and chanta/junchan is your only realistic way your hand can complete open. | *You need a quick hand, and chanta/junchan is your only realistic way your hand can complete open. | ||
*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). | ||