How to review your Riichi games with AI
Strong Riichi players review their games. An AI reviewer goes through your game turn by turn and shows where its choice differed from yours, so you can see your habits.
Step 1: get your game log
- Tenhou: every game has a log link (a tenhou.net address containing
log=). Copy it from your game history. - Mahjong Soul: open the game in your records and copy its share link. Mahjong Soul calls a game record a paipu.
Step 2: choose a reviewer
| Reviewer | Engine | Cost | Good for |
|---|---|---|---|
| mjai.ekyu.moe (web) | Mortal | Free | Mahjong Soul players; nothing to install |
| mjai.ekyu.moe (web) | Akochan | Free, queued (10–60 minutes) | A second opinion that shows deal-in risk for each move |
| mjai-reviewer (command line) | Mortal or Akochan | Free | Tenhou logs, if you're comfortable with a terminal |
| NAGA | NAGA | Paid, from ¥550 a month | Tenhou players who want several play styles to compare |
Not sure? Start with Mortal on the web; it's free. Our NAGA vs Mortal comparison goes deeper.
Step 3: read the review
The reviewer marks every decision where its choice differs from yours, usually with how strongly it preferred its own move. Some ways to get the most from it:
- Ignore the close calls. If the AI barely preferred another tile, either choice was fine. Look at the decisions where it disagreed strongly.
- Look for patterns, not single mistakes. One odd discard is noise. Folding too early in every game is a habit worth fixing.
- Check push or fold first. Whether to keep attacking or start defending after someone declares riichi decides more games than tile efficiency does.
- Review losses and wins. A win can still hide a risky decision that happened to work out.
- Don't copy blindly. The AI plays for placement over many games; understand why it prefers a move before adopting it.
Step 4: practise the fix
Pick one habit from your review and practise it for a few sessions. Riichi on Mahjong Live is free against AI opponents, so you can focus on one change without the pressure of a ranked game. After every win it shows the yaku, han, fu and payments.
New to Riichi? Start with how to play Riichi mahjong.
Practise Riichi free
Work on one habit at a time against AI opponents, in your browser.