Shanpon

Shanpon

Kanji	腹ボテ
English	Dual paired
Fu	Depends on the tiles
Tile types waiting	{{{type}}} sided wait
Tiles available	4 tiles
Pattern example
Tenhou.net example	Shanpon with mentsumo Honor based

Shanpon 「腹ボテ」 is a wait pattern involving two groups of paired tiles, where either is looking to complete a triplet.

Pattern

Waiting for: or

Fu

Main article: Fu

The fu generated from a shanpon depends on the tiles themselves. Triplets using honor tiles or terminals are worth more than simples. When claimed for a win, the newly completed triplet is considered to be open.

Usage

At most, a shanpon wait looks for 4 tiles of 2 tile types (2 tiles each). The pattern has one main advantage, by which it is immune to suji. Plus, it can easily incorporate honor tiles. Players looking to defend may fall to these traps fairly easily.

The major disadvantage to shanpon involves locked tiles. In this case, pairs of waiting tiles may be incorporated into other player(s) waiting hands, which may or may not be dropped. If this happens, then one or both tile types decrease in likelihood for a win. Of course, the win may be assured, if such a player decided to split a pair and discard the needed tile.

Combinations

Shanpon may combine with other tile waits. Shanpon with ryanmen produces entotsu. This combination may be increased with ryanmenten. Shanpon has the ability to mix with itself. This is only possible with a built-in pattern of iipeikou, plus a fourth numbered pair in the sequence.