Ryantan: Difference between revisions
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'''Ryantan''' and '''pentan''' are [[ | {{infobox machi | ||
|kanji =リャンタン<br>ペンタン | |||
|english = | |||
|fu = Dependent | |||
|type = 3 or 2 | |||
|available = 11 or 7 | |||
|tilePattern = {{#mjt:2333p}}<br>{{#mjt:6888p}}<br>{{#mjt:8889m}} | |||
|gameExample = | |||
}} | |||
'''Ryantan''' {{kana|リャンタン}}, '''kantan''', and '''pentan''' {{kana|ペンタン}} are a group of [[complex waits]] that can wait to complete either a pair or a sequence. They appear as a triplet with a nearby adjacent tile: | |||
* '''Ryantan''': Combination of [[ryanmen]] and [[tanki]]. Involves a triplet with a tile adjacent, where none of these tiles are [[terminal]]s. Example: 2223, which can be treated as 22 + 23 (ryanmen) or 222 + 3 (tanki). | |||
* '''Kantan''': Combination of [[kanchan]] and [[tanki]]. Involves a triplet with a tile numerically 2 apart. Example: 2224, which can be treated as 222 + 24 (kanchan) or 222 + 4 (tanki). | |||
* '''Pentan''': Combination of [[penchan]] and [[tanki]]. Involves a triplet with a tile adjacent, where either the triplet or adjacent tile are composed of terminals. Examples: 1112, which can be treated as 111 + 12 (penchan) or 111 + 2 (tanki). | |||
In order to enter [[tenpai]] with any of these waits, the hand must not have any other pairs. If it already has a "stable" pair, the adjacent tile can be treated as a floating tile. | |||
== Pattern == | |||
===Ryantan=== | |||
{{#mjt: 123456789m4445p}} Waiting for: {{#mjt: 3p}}, {{#mjt: 6p}}, {{#mjt: 5p}} | |||
Note: this hand will score [[pinfu]] if won on {{#mjt: 3p}} or {{#mjt: 6p}}. If won on the {{#mjt: 5p}}, the hand will have a triplet, thus invalidating the yaku. | |||
===Kantan=== | |||
{{#mjt:123456789m1113s}} Waiting for: {{#mjt:2s}} or {{#mjt:3s}} | |||
===Pentan=== | |||
{{#mjt: 123456789m1112s}} Waiting for: {{#mjt: 2s}}, {{#mjt: 3s}} | |||
{{#mjt: 123456789m8889s}} Waiting for: {{#mjt: 7s}}, {{#mjt: 9s}} | |||
===Tatsumaki=== | |||
{{Main|Tatsumaki}} | |||
Tatsumaki can be viewed as two ryantan waits fused together. It consists of two triplets that are 2 ranks apart, and one floating tile between the triplets. | |||
{{machi | |||
|pattern = 000z4445666p000z | |||
|tilewaits = 34567p | |||
}} | |||
Note: when this pattern wins on either triplet tile (in this example, {{#mjt: 4p}} or {{#mjt: 6p}}), the hand can complete a [[shanpon]] wait instead of a [[ryanmen]] wait. This can be important as the shanpon wait gives more [[fu]], and possibly gives [[sanankou]]. | |||
==Value== | |||
Kantan and pentan are always worth 2 [[fu]], so they cannot be used for pinfu. Completing the tanki is worth more fu, since it forms a triplet. | |||
Ryantan is worth fu only if it completes the tanki portion. If it completes the ryanmen, no fu is scored, so it can be used for pinfu. E.g. a hand with a 4445 wait can score pinfu when winning with 3 or 6, but ''not'' with the 5. | |||
==External links== | |||
[[Category:Terminology]] | [[Category:Terminology]] | ||
[[Category:Machi]] | [[Category:Machi]] | ||
{{navbox machi}} | |||
Latest revision as of 00:48, 30 July 2024
| Kanji |
リャンタン ペンタン |
|---|---|
| Fu | Dependent |
| Tile types waiting | 3 or 2 sided wait |
| Tiles available | 11 or 7 tiles |
| Pattern example |
      |
Ryantan 「リャンタン」, kantan, and pentan 「ペンタン」 are a group of complex waits that can wait to complete either a pair or a sequence. They appear as a triplet with a nearby adjacent tile:
- Ryantan: Combination of ryanmen and tanki. Involves a triplet with a tile adjacent, where none of these tiles are terminals. Example: 2223, which can be treated as 22 + 23 (ryanmen) or 222 + 3 (tanki).
- Kantan: Combination of kanchan and tanki. Involves a triplet with a tile numerically 2 apart. Example: 2224, which can be treated as 222 + 24 (kanchan) or 222 + 4 (tanki).
- Pentan: Combination of penchan and tanki. Involves a triplet with a tile adjacent, where either the triplet or adjacent tile are composed of terminals. Examples: 1112, which can be treated as 111 + 12 (penchan) or 111 + 2 (tanki).
In order to enter tenpai with any of these waits, the hand must not have any other pairs. If it already has a "stable" pair, the adjacent tile can be treated as a floating tile.
Pattern
Ryantan
Waiting for: , ,
Note: this hand will score pinfu if won on or . If won on the , the hand will have a triplet, thus invalidating the yaku.
Kantan
Waiting for: 
or
Pentan
Waiting for: ,
Waiting for: 
,
Tatsumaki
Tatsumaki can be viewed as two ryantan waits fused together. It consists of two triplets that are 2 ranks apart, and one floating tile between the triplets.
Waiting for: 
Note: when this pattern wins on either triplet tile (in this example, or ), the hand can complete a shanpon wait instead of a ryanmen wait. This can be important as the shanpon wait gives more fu, and possibly gives sanankou.
Value
Kantan and pentan are always worth 2 fu, so they cannot be used for pinfu. Completing the tanki is worth more fu, since it forms a triplet.
Ryantan is worth fu only if it completes the tanki portion. If it completes the ryanmen, no fu is scored, so it can be used for pinfu. E.g. a hand with a 4445 wait can score pinfu when winning with 3 or 6, but not with the 5.
External links
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