New to mahjong?

Learn mahjong

Rule guides, rankings, and tips with sample hands. Open any example in the hand generator or storyboard editor.

Answer three quick questions and get a personalized reading list.

Pick a ruleset

Each ruleset has its own rules, rankings, and tile art.

Pick the variant you are learning — rules, rankings, and examples match that set.

Modern Japanese riichi — reach, yaku, and scoring basics.

Chinese Official (MCR) — fan patterns and tournament rules.

Hong Kong traditional — fast rounds and limit hands.

American NMJL — year card patterns and Charleston.

Full rule guides by ruleset.

Yaku and scoring patterns explained.

Comparisons and common pitfalls.

Terms with example hands.

Test pattern recognition.

Same hand in four rulesets side by side.

Transparent PNG packs.