Mahj Trainer for ChatGPT

Learn and practice American mah jongg, the game played with the yearly National Mah Jongg League card, right in a ChatGPT conversation.

What it does

• Short lessons on the basics, the tiles, the sections of the card, the Charleston, and keep-or-throw judgment.
• Practice quizzes that check and explain each answer, including Charleston passes you pick by tapping tiles.
• A rack reader. Share your tiles and it says which sections you lean toward, which three tiles to pass and why, and what to build on.
• A glossary of mah jongg terms, from pung and quint to joker swap and dead hand.

Try asking

• Teach me how American mah jongg works.
• Quiz me on the Charleston.
• Read my rack: 2C 2C 4C 4C 6B 6B 8B 8D F J 1C 9B N. What should I pass?
• What is a joker swap?

Questions

Does it know this year's card?

No. The card is copyrighted and changes every April, so Mahj Trainer never quotes its hands. It teaches the sections every card is built from (2468, 13579, 369, Consecutive Run, Like Numbers, Winds & Dragons, Singles & Pairs, Quints and the year hands). Keep your own card next to you for the exact lines.

How do I type my rack?

Any way that names each tile. Codes work (5D is 5 Dot, 2B 2 Bam, 7C 7 Crak, N E W S for the winds, RD GD SO for the dragons, F for a flower, J for a joker), and so do words like "five dots", "north wind", "soap" or "3 jokers". Share all 13 tiles for the best read.

Why did it ask me to fix my rack?

If it can't read one of the entries, or the rack holds more copies of a tile than a set has, it shows what it read and asks you to correct the rest. A read that skips a tile could tell you to pass the wrong ones.

Can I name the pass I'm making?

Yes. Say which pass it is, like "first pass left" or "the courtesy pass", and the advice changes to fit. On the blind-pass rounds it only suggests tiles that fit nothing and leaves the rest for a blind pass.

Does it keep my tiles or questions?

No. There is no account, and the server keeps no record of what you ask. The privacy policy has the details.

Something looks wrong

Email jackwallner+m@gmail.com with what you asked and what it said.