Difference between revisions of "Pinfu"

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Essentially, pinfu is incompatible with any yaku that employs [[ankou|triplets]].  On the other hand, pinfu works any sequential based yaku.  As long as the hand is closed, the pair does not produce "[[Scoring#Fu|fu]]", and the wait is [[ryanmen|open]], then pinfu may be applied.
 
Essentially, pinfu is incompatible with any yaku that employs [[ankou|triplets]].  On the other hand, pinfu works any sequential based yaku.  As long as the hand is closed, the pair does not produce "[[Scoring#Fu|fu]]", and the wait is [[ryanmen|open]], then pinfu may be applied.
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==Usage==
  
 
==External links==
 
==External links==

Revision as of 13:18, 11 February 2014

Pinfu
Type Yaku
Kanji 平和
English All sequences
Value 1 han
Speed Very fast
Difficulty Very easy
Example(s)
More examples

Pinfu 「平和」 is a standard yaku. This yaku is defined by having 0 fu aside from the base 20 fu, or 30 fu in the case of a closed ron. It is worth 1 han and closed only. Under all cases, a tenpai for pinfu requires the wait pattern of ryanmen (open wait).

Tile diagram

Tile-1m.pngTile-2m.pngTile-3m.pngTile-2s.pngTile-3s.pngTile-4s.pngTile-7s.pngTile-8s.pngTile-5p.pngTile-6p.pngTile-7p.pngTile-9p.pngTile-9p.png Winning tile: Tile-6s.png or Tile-9s.png

The winning tile completes the last sequence, which is worth 0 fu, making the hand pinfu.

English reference

In English, pinfu is sometimes referred to as "all sequences". However, the yaku is not as simple as that. Other than having an open hand, it is possible for a hand to be composed of all sequences and still not be classed as a pinfu. The following examples are a "all sequence hands"; but they are not pinfu.

  1. Tile-2m.pngTile-3m.pngTile-1p.pngTile-2p.pngTile-3p.pngTile-6s.pngTile-7s.pngTile-8s.pngTile-3m.pngTile-4m.pngTile-5m.pngTile-1z.pngTile-1z.png Agari: Tile-1m.png or Tile-4m.png
  2. Tile-1p.pngTile-2p.pngTile-3p.pngTile-4p.pngTile-5p.pngTile-6p.pngTile-7m.pngTile-8m.pngTile-9m.pngTile-5s.pngTile-6s.pngTile-7s.pngTile-3m.png Agari: Tile-3m.png
  3. Tile-2m.pngTile-3m.pngTile-1p.pngTile-2p.pngTile-3p.pngTile-6s.pngTile-7s.pngTile-8s.pngTile-3m.pngTile-4m.pngTile-5m.pngTile-4z.pngTile-4z.png Agari: Tile-1m.png or Tile-4m.png
  4. Tile-1m.pngTile-2m.pngTile-3m.pngTile-2s.pngTile-3s.pngTile-4s.pngTile-7s.pngTile-8s.pngTile-9s.pngTile-5p.pngTile-6p.pngTile-7p.pngTile-8p.png Agari: Tile-5p.png or Tile-8p.png

The first and third examples can be pinfu. In the case of the first example, the hand must be formed during the south round, while not seated as east. For the third example, the hand is pinfu for all players not seated north. As for the second and fourth examples, under no circumstances can they be pinfu.

Fu

To understand pinfu, players must understand the nature of fu, or mini-points. Fu are a set of points associated with hand composition. In the case of pinfu, the relevant sources of fu comes from the tile groups and the wait patterns. The only wait pinfu gains fu involves the 10 fu gained from winning with a closed ron.

Therefore, pinfu must avoid these patterns:

  • Any koutsu or kantsu is worth at least 2 fu. A pinfu hand must have four shuntsu.
  • Winning from a tanki, kanchan, or penchan wait is worth 2 fu.
  • A pair of yakuhai, i.e., dragons, the round wind, or the seat wind, is worth 2 fu. A pinfu hand must have a valueless pair.
  • An open hand worth 20 fu is counted as 30 fu. Pinfu may only be awarded to a closed hand.

In the end, a pinfu hand must win from a ryanmen or ryanmenten wait. In other words, the winning tile must complete an open shuntsu (sequence).

As an exception, pinfu with mentsumo gains 0 fu from tsumo, or winning by self-draw. Normally, a winning tile drawn from the wall is worth 2 fu. In turn, the hand qualifies as pinfu, and these 2 fu are waived. The hand is then scored at 20 fu; and at least 2 han for menzen tsumo and pinfu. Some rule variations may not allow waiving these fu, and score such a hand as 30 fu, tsumo, without pinfu. Such variations are rare.

Compatability

^ Ippatsu requires riichi to be of any use.

RCH DRI IPP^ SMO TAN PFU IPK ITT YAK SDJ SDO TOI SNA SNK CHA JUN RPK SSG HRO HON CHN CHI RIN HAI HOU CHK
PFU 13 green check.png 13 green check.png 13 green check.png 13 green check.png 13 green check.png 13 green check.png 13 green check.png 13 red x.png 13 green check.png 13 red x.png 13 red x.png 13 red x.png 13 red x.png 13 green check.png 13 green check.png 13 green check.png 13 red x.png 13 red x.png 13 green check.png 13 green check.png 13 red x.png 13 red x.png 13 green check.png 13 green check.png 13 green check.png

Essentially, pinfu is incompatible with any yaku that employs triplets. On the other hand, pinfu works any sequential based yaku. As long as the hand is closed, the pair does not produce "fu", and the wait is open, then pinfu may be applied.

Usage

External links

Pinfu in Japanese Wikipedia