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Penchan: Difference between revisions
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== Fu == | == Fu == | ||
Because the winning tile does not complete a shuntsu which was completable on two sides, winning from a penchan awards 2 [[fu]] to the hand and does not count as [[pinfu]]. Sometimes, a winning tile can be interpreted to complete either a penchan or something else, and the higher-scoring interpretation will be used. | Because the winning tile does not complete a shuntsu which was completable on two sides, winning from a penchan awards 2 [[fu]] to the hand and does not count as [[pinfu]]. Sometimes, a winning tile can be interpreted to complete either a penchan or something else, and the higher-scoring interpretation will be used. | ||
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== Strategy == | == Strategy == | ||
Penchan is considered to be a "bad wait", because it can only wait for a maximum of 4 tiles. Therefore, it is worse for [[tile efficiency|hand development]] than [[ryanmen]]. | Penchan is considered to be a "bad wait", because it can only wait for a maximum of 4 tiles. Therefore, it is worse for [[tile efficiency|hand development]] than [[ryanmen]]. However, like the other bad waits, it can be used to [[Suji#Offense|suji trap]] opponents. | ||
Both [[chanta]] and [[junchan]] often, but not always, use penchan waits. Both these yaku rely on tiles near the ends (1,2,3) and (7,8,9). | Both [[chanta]] and [[junchan]] often, but not always, use penchan waits. Both these yaku rely on tiles near the ends (1,2,3) and (7,8,9). | ||
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*A {{#mjt:12p}} penchan cannot be upgraded to ryanmen on its own. It must first draw a {{#mjt:4p}}, turning it into a {{#mjt:24p}} kanchan, then draw the {{#mjt:5p}} to get a ryanmen. | *A {{#mjt:12p}} penchan cannot be upgraded to ryanmen on its own. It must first draw a {{#mjt:4p}}, turning it into a {{#mjt:24p}} kanchan, then draw the {{#mjt:5p}} to get a ryanmen. | ||
As a penchan requires 2 tiles to be upgraded, it is inferior to keep before reaching tenpai. In addition, kanchan can be turned into a [[ryankan]] shape, while penchan cannot. However, once | As a penchan requires 2 tiles to be upgraded, it is inferior to keep before reaching tenpai. In addition, kanchan can be turned into a [[ryankan]] shape, while penchan cannot. However, once tenpai is reached, both kanchan and penchan become effectively identical. | ||
==External links== | ==External links== | ||