The short answer: Siamese Mahjong is a rare two-player variant with no unified official rules. It usually plays as simplified four-player mahjong — two players opposite each other, with house rules for the wall and hands. Ask the host how their version works.
Ask ten players about Siamese Mahjong and you will get ten shrugs. It is not a mainstream variant like American Mahjong or Japanese Riichi — it is a niche two-player adaptation with almost no written documentation.
What is actually known about Siamese Mahjong?
- Two players, seated opposite each other
- No standard rulebook — every table has its own details
- Usually simplified from the four-player game
- One player may take multiple seats, or the wall is split specially
How does it differ from the big variants?
- American — 152 tiles, jokers, the yearly NMJL card
- Chinese — 144 tiles, four players, regional scoring
- Riichi — Japanese, 136 tiles, riichi declarations
- Siamese — two players, house rules, no standard
Prefer clear rules? Try the four-player American Mahjong game, read our rules page, or check the what is mahjong overview of every major family.
Related Questions
Is Siamese Mahjong just two-player mahjong?
Effectively yes — the common name for a two-player take on the game. But details swing wildly between tables, so never assume a rule carries over.
Where did Siamese Mahjong come from?
No reliable records exist. It survives through casual circles and word of mouth, which is why there is no single rule set — everyone learned it from someone else.
How many tiles do you need?
Usually a standard 144-tile set. Some versions drop the flowers or add jokers — ask your host before sitting down.