The short answer
A tile count can narrow the question, but it cannot identify every rules variant. Use a named rules reference and ask the host before treating one set as a match.
Compare the tile groups.
| Rules reference | Suit tiles | Winds | Dragons | Flowers | Jokers | Total | What to confirm |
|---|---|---|---|---|---|---|---|
| American Mah Jongg | 108 | 16 | 12 | 8 | 8 | 152 | Current NMJL card or the group’s stated house rules. |
| Mahjong Competition Rules (MCR) | 108 | 16 | 12 | 8 | 0 | 144 | Use the MCR rules reference; “Chinese” alone does not name a ruleset. |
| EMA Riichi rules | 108 | 16 | 12 | 0 | 0 | 136 | The 2025 EMA reference does not use red fives; confirm any house variation with the group. |
These are three specific rule references. Other Chinese or Riichi variants may use different tiles, extras, or table conventions.
Enter a set’s counts in the tile count checker. It compares categories with these baselines; it does not identify markings or validate every house rule.
What would you add or set aside?
These changes match the three inventories above. They apply only when the other tile groups and faces match the named rules reference.
| Starting set | Target rules | Tile change |
|---|---|---|
| American | MCR | Set aside 8 jokers; keep the 8 flowers. |
| American | EMA Riichi | Set aside 8 flowers and 8 jokers. EMA’s 2025 rules do not use red fives. |
| MCR | American | Add 8 clearly marked jokers. |
| EMA Riichi | American | Add 8 flowers and 8 clearly marked jokers. |
Ask the host before changing a set. Matching counts do not guarantee that a tile’s face or marking suits the table.
Can a Chinese set work for American play?
A 144-tile set with 108 suit tiles, 16 winds, 12 dragons, and 8 flowers has the same first four groups as the American reference, but it has no jokers. American play’s standard inventory includes 8 jokers. Confirm the count and faces with the host before adding or marking tiles.
For the step-by-step check, see using a Chinese set for American mahjong.
Check accessories after the rules.
A correct tile count does not show whether the box includes racks, pushers, dice, scoring pieces, storage, or the reference material your group uses. Read the exact contents list and ask what players already have.
For tile and rack dimensions, use the rack fit calculator. For a mat, enter its full size and the table’s usable surface in the mat fit calculator.
Check a named store set.
These pages compare published listing details and cited owner reports for a specific set or model group. They do not claim a physical fit test: Costco, Sam’s Club, Hobby Lobby, Target / Spin Master, and Yellow Mountain Imports.
Rules sources.
- American Mah Jongg Association tile reference.
- World Mahjong Organization Mahjong Competition Rules (2013).
- European Mahjong Association Riichi rules (2025).
Rules documents and inventory references checked 13 October 2026.