|
In Japanese Mahjong, ''yaku'' (Japanese: 役) is a condition that determines the value of the player's hand. It is essential to know the ''yaku'' for game strategy, although the knowledge is not mandatory. A player must have a minimum of one ''yaku'' in their hand in order to legally win a hand. Each ''yaku'' has a specific ''han'' value. ''Yaku'' conditions may be combined to produce hands of greater value. The game also features ''dora'', that allow a hand to add ''han'' value, but that cannot count as ''yaku''. Altogether, a hand's points value increases exponentially with every ''han'' a hand contains. == Overview == ''Yaku'' are somewhat similar to poker hands. They fit certain patterns based on the numbers or types of tiles included, as well as the relative value of the tiles. Unlike poker, however, multiple hand types may be combined to produce hands of greater value. There are three basic classes of yaku: * Closed hand only (''menzen-nomi'', 門前のみ) * "Eat and decrease" (a literal translation of ''kuisagari'', 喰い下がり), where the ''han'' value decreases by one if the hand is open * Yaku where the ''han'' value is the same regardless of whether the hand is closed or open. Calling for another player's discard to make a meld makes the meld and the hand open. When a winning tile of a closed hand is a discard, the meld including that discard is considered open, while the hand is still regarded as closed. If a hand is closed, the situation is called "''menzenchin'' (門前清)" or "''menzen'' (門前)" in Japanese. The basic concept of a ''yaku'' is that it fits into one of three basic criteria: * It contains a pattern of some kind * It has a great deal of consistency * It is circumstantial based on specific game situations Finally, when it comes to points scoring, the total number of ''han'' in the hand is counted. When the ''han'' value is four or less, ''fu'' is also counted. The combination of the ''han'' value and ''fu'' value corresponds to a points table. 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Japanese Mahjong yaku」の詳細全文を読む スポンサード リンク
|