Sanma

Sanma 「三麻」 is the three player variant to mahjong. Just like the regular four player game, all yaku and standard rules apply to the game. Likewise, any house rules may apply.

Rule modifications

Three player essentially plays like the regular four player game but with some changes.

• Chii disabled

Players cannot make the tile call of chii. Players can still call pon or kan for claiming discards.

• Removal of one suit

Typically, the manzu suit is removed. Though, the terminals (1-man and 9-man) remain in order to retain the possibility for kokushi musou and chinroutou. However, the game loses sanshoku doujun.

• The dead wall

The dead wall is arranged differently. The dead wall accommodates 8 rinshan draws rather than four. Thus, dora indicator is the 5th tile from the wall break.

• North tile dora

By use of kita 「キタ」, possession of the north tile may be put to the side of the hand, like an open call; and it would be counted as dora. Plus, the player is also awarded an extra draw from the dead wall for that north tile.

If the player wins off of the dead wall draw from calling kita, they are awarded rinshan.

A kita call can be ronned, but this does not award chankan.

• Scoring

For scoring, the same scoring table is used. Both ron and tsumo values remain the same. However, for tsumo, no change is used to account and adjust for the missing player. Therefore, the total points for tsumo is less than that of the ron total.

Game setup

Sanma setup features 108 tiles, with the 2-8 tiles in one suit (typically the Manzu) removed. The 3 players each build a wall 18 tiles long, 2 tiles high. Automatic mahjong tables build 4 walls of 13-14-13-14 length instead.

The dead wall is still 7 tiles long, 2 tiles high, but the dora indicator is flipped on the 5th tile to accommodate Kita calls. For each Kita or Kan call, the Haiteihai is moved to the dead wall to accommodate additional dora flips from Kan calls.

Starting point value is typically 35,000.

The North seat is entirely removed, so seats rotate between East, South, and West.

Play differences

Due to one less suit and fewer tiles, hands tend to develop much faster. In turn, players get the tendency to push for tenpai more aggressively. With the application of the nuki dora, values tend to become inflated. Hands of mangan or higher become more frequent.

Variants

Main article: Atama mahjong

One variant to sanma is called atama mahjong. The same mechanics to atama applies with an added feature: tile calls from single tiles to complete pairs is allowed.

External links

• 三人麻雀

Sanma in Japanese Wikipedia