Three-Player Mahjong Rules

Why three-player mahjong exists

Three-player mahjong, usually called sanma in Japanese, is the same game with one seat removed. It is popular because it is fast: fewer players means fewer discards between your turns, a shorter wall, and hands that complete in noticeably less time.

But it is not a simplified game. The rule changes that follow from removing a seat make play more aggressive and, in some ways, harder. Once you understand them, you will see that a sanma table is not a beginner's table.

The missing wind and the missing seat

With only three seats, the north wind has no player to belong to. Japanese sanma removes the north wind tiles from the set entirely and plays with east, south and west. Chinese three-player variants handle this differently: some keep the north tiles but treat them as bonus tiles, others remove the whole honour group.

The practical result is the same: hands that rely on all four winds become impossible, and the value of a wind pung goes up because there are fewer competitors for those tiles. If you sit down at a three-player table, the first question to ask is which winds are in the set.

Kita: the north tile as a kong

In Japanese three-player mahjong, a drawn north tile can be set aside face up as a kita, which counts as a kong for the purpose of drawing a replacement tile. It is not one of your four sets and does not score as a triplet.

Kita works as a safety valve. In a four-player game a drawn north tile is usually a wasted draw; in sanma it becomes a replacement draw and, at some tables, a small score bonus. It also lets you burn a tile without adding it to a dangerous river.

The shorter wall and what it does to the game

One fewer player draws from the wall each cycle. Across a hand, that means the wall lasts slightly longer per player and there is one fewer opponent to track, which drives three effects at once:

• Hands complete faster. With three players the turn comes around more often, so decisions arrive sooner and players chase cheaper and quicker shapes.
• Exhaustive draws are rarer. Each player gets a few more turns from the wall before it runs out, so more hands reach a win than in a four-player game.
• Discard reading matters more. With two opponents instead of three, each opponent's river is a bigger share of the information available, and a dangerous tile is more likely to come back to you.

Defence in a three-player game

Fewer opponents should mean less danger. At a competitive table the opposite is true. Three-player hands tend to be bigger: less competition for tiles makes rare shapes easier to complete, and players who would defend in a four-player game often push instead.

Change	Effect on defence
One fewer opponent	Fewer threats, but each threat is likelier to be a large hand
Shorter wall	Less time to wait out a dangerous situation
No north wind	Honour tiles are scarcer, so honour discards are safer than usual
Kita	Gives you an extra safe outlet late in the hand

The practical adjustment is to fold earlier. In a four-player game you can often afford one more push; in sanma, a hand that is two tiles away is not worth a discard that might deal into a big win.

Which three-player game are you playing?

"Three-player mahjong" covers several different games. Confirm these five points before the deal:

1. Which winds are removed? North only, or all honours?
2. Is kita in play? If yes, does it score on its own?
3. What is the starting score? Three-player games often use a different starting total.
4. How is the dealer decided? Some variants rotate differently with three seats.
5. Are flowers used? Japanese sanma does not use them; some Chinese variants do.

Is three-player easier for beginners?

Faster, yes. Easier, no. The rules are a subset of the four-player game, so the learning material transfers directly, but the strategic demands are higher: hands are bigger, decisions come sooner, and there is less room to recover from a bad discard. If you are learning the game from scratch, four-player is the better classroom; three-player is the better test.

Quick answers

Which winds are used in three-player mahjong?

East, south and west. North is removed in Japanese sanma, and handled differently by Chinese three-player variants.

What is kita?

A drawn north tile set aside face up, which counts as a kong for drawing a replacement. It does not form part of your hand's sets.

Is three-player mahjong shorter?

Yes. One fewer seat means a shorter wall and fewer turns per rotation, so hands finish faster and draws are rarer.

Should beginners start with three-player?

Not usually. The rules transfer, but the game is more aggressive and less forgiving, which makes it a poor first table.