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==The tile groups==
==The tile groups==
Mahjong features four types of tiles in terms of suits: the numbered suits and [[honor]]s. Every tile group ''must'' be of a single suit - therefore, a mix of suits would be [[chombo|invalid]].
Mahjong features four distinct suits: three numbered suits (manzu, pinzu, souzu), and [[honor]]s. Each tile group ''must'' be composed of a single suit, though a hand can contain tile groups of different suits.


In addition, honor tiles can only be used by themselves. An honor tile group must be made out of identical copies of one honor tile; you cannot mix different honor tiles together. In other words, honors can be used in pairs/triplets/quads, but not sequences.
In addition, honor tiles can only make groups with other copies of the same tile; you cannot mix different honor tiles together. As a result, honor tiles cannot be used in sequences.


===Shuntsu===
===Shuntsu===
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'''Shuntsu''' {{kana|順子}} (sequences) is a tile group consisting of three sequential numbered tiles. Note that 9 does not "wrap around" to 1 - you cannot have sequences of "891" or "912". In addition, you cannot make sequences by using honor tiles.
'''Shuntsu''' {{kana|順子}} ("sequence") is a tile group consisting of three consecutive number tiles. Note that 9 does not "wrap around" to 1 - you cannot have sequences of "891" or "912". In addition, you cannot make sequences by using honor tiles.


Self-drawn sequences are called '''anjun''' {{kana|暗順}}. The open variety are '''minjun''' {{kana|明順}}. To form a '''minjun''', players are limited to calling tiles from [[kamicha]], or the player from the left. Discarded tiles from the other two players, that are needed to complete this meld cannot be called upon. Furthermore, an added restriction is applied by [[kuikae]], which applies to calls off of previously completed sequences.
Closed sequences are called '''anjun''' {{kana|暗順}}. The open variety are '''minjun''' {{kana|明順}}. To form a '''minjun''', players are limited to calling tiles from [[kamicha]], or the player from the left. Discarded tiles from the other two players, that are needed to complete this meld cannot be called upon. Furthermore, an added restriction is applied by [[kuikae]], which applies to calls off of previously completed sequences.


===Koutsu===
===Koutsu===
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'''Koutsu''' {{kana|刻子}} is a tile group consisting of three of the same type of tiles. In English, koutsu are referred as "triplets".  Players may develop '''minkou''' {{kana|明刻}} (open triplets) by calling on a discarded tile while already having a pair of said tile.
'''Koutsu''' {{kana|刻子}} ("triplet") is a tile group consisting of three of the same type of tiles. Players may develop '''minkou''' {{kana|明刻}} (open triplets) by calling on a discarded tile while already having a pair of said tile.


===Kantsu===
===Kantsu===
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Tile groups involving four-of-a-kind take on a different nature than the other tile groups.  '''Kantsu''' {{kana|槓子}} must be declared by [[kan]], to be useful. Kan is a special [[Naki|tile call]] in the game. This call forms a meld from four identical tiles.  After the declaration of "kan", then a special set of rules are invoked.
'''Kantsu''' {{kana|槓子}} ("quads") are special - in order to count as a proper tile group, a player must declare "[[kan]]". Kan is a special [[Naki|tile call]] with its own set of procedures: first, the four-of-a-kind must be set aside, then a player must draw a replacement tile.
 
Kantsu count as triplets for the purposes of [[yaku]].


=== Jantou ===
=== Jantou ===
{{main|Jantou}}
{{main|Jantou}}


This is the pair of the hand, or the '''jantou''' {{kana|雀}}.  The terms '''mentsu''' and '''group''' do not refer to the pair, but only to the triplets, quads, and sequences.
'''Jantou''' {{kana|雀}} is the pair of the hand.  The terms ''mentsu'' and ''group'' do not refer to the pair, but a pair is required to complete a mahjong hand.


==External links==
==External links==
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