Suuankou

Revision as of 21:29, 6 January 2014 by KyuuAA (talk | contribs) (→‎Formation)

Suuankou (四暗刻) is one of the standard yakuman hands. This hand consists of four concealed triplets and a pair, i.e. none of the triplets must have been claimed from other players' discards. If the hand is on a shanpon wait, the winning tile must be a tsumo and not as a discard of another player. A win by discard may render the fourth triplet as an "open" triplet. Thus, the condition for the yakuman would not be met.

Suuankou
Type Yakuman
Kanji 四暗刻 or 四暗刻単騎
English Four concealed triplets
Value Yakuman
Speed Slow
Difficulty Hard

Then there is suuankou tanki (四暗刻単騎), which features the hand with a tanki wait, the winning tile may come from another player's discard. In this case, all four triples are present in the hand. This hand is closed only.

Tile diagram

              Winning tile:   or  .

Note: Either tile must be won by tsumo. Otherwise, this hand is toitoi and sanankou.

Tanki

              Winning tile:  

Note: This wait is sometimes considered to be worth double yakuman.

Value

This hand is a yakuman hand which automatically awards 32000 points to a non-dealer winner, or 48000 points to a dealer winner.

Formation

All four of the triplets must be concealed for this hand to be counted as a yakuman. Tile calls of closed kans are acceptable, as the closed kan also counts as a closed triplet.

With a shanpon wait, one of the pairs is upgraded into a triplet. If this method of completion is done by discard, then that triplet is considered to be open. Instead of yakuman, the hand would instead be counted as a combination of toitoi and sanankou, at least.

External links

Suuankou in Japanese Wikipedia