/jp/ - Otaku Culture

>>18352421
Every player has a seat wind. For that player, the wind that matches their seat is worth yakuhai for them and them only (one exception below). So a player sitting west gets yakuhai for a west wind triplet (or quad), while other seats wouldn't. Similarly, that same player wouldn't get value from a north wind triplet.

In addition to this, there's also a concurrent round wind that is worth yakuhai to everyone. East in the east round, south in the south round. In the case of the dealer (east) in the east round, his double up, so a dealer in the east round with a triplet or more of the east wind gets two yakuhai for the one triplet (called dabuton, lit. double east). The south player in the south round has the same thing (dabunan, double south).

Whether a tile is worth yakuhai or not is also valuable knowledge in regards to forming the pair. Pinfu requires that all tile groupings be sequences, that it is waiting on two sides when tenpai, and lastly, that the pair utilized is not yakuhai (or, more specifically, that it does not grant the hand any additional Fu. This is essentially the same thing though, as the only tiles that can grant Fu while being utilized as a pair are yakuhai tiles.) So, following this, a player sitting west could not use the west or east (south in the south round) wind tiles as a pair for a valid Pinfu hand, but he could use the north and south (east in the south round) wind tiles.