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THE ANALYSIS TABLE, AFTER THE GAME

Import a game. Review every discard.

ranks every closed-hand discard. You see the table at the exact decision point, its candidate, and the measurable consequences.

  • A real table, not an abstract report
  • , visible , , and safety
TENPAI AITENPAI V1 · REVIEW MODEL
decisions
5
optimal
2
inaccuracies
2
mistake
1
UKEIRE LOST BY DECISIONBY TENPAI V1Turn 6 · 8 ukeire lost
M Tournament 2026 · Final · Game 1Kenji Katsumata · East seat

East 1 · turn 6 · · no opponent in

YOU DISCARDED
4 ukeire
THE MODEL PREFERS
12 ukeire
0
0
Visible
4
12
lost
8
0
kept
1
0
Safety
no alert
no alert

Both discards bring the hand to . Keeping the after leaves only 4 . The model gives up that and keeps 12.

Review this decision on the tableFull replay, four points of view, and Mortal analysisOPEN→
YOUR 5 DECISIONSSelect a turn to rebuild the table.

Import a riichi mahjong game for a Tenpai review

TENPAI AI · REVIEW~30 sec
Drop your game hereor click to browse.json · .xml · .mjai · 5 MB max
1 complete guest review · interactive table included · removed after 1 hour
WHAT YOU TAKE FROM THE REVIEW

Find the tile you should have discarded.

isolates the discards that actually change your hand. Compare , , and safety, then replay the turn until the better choice sticks.

Review my game for freeOne complete game included. No account required.
THE TURNING POINT IN THIS HANDEast 1 · turn 6
AFTER YOUR CHOICE4 ukeire
+8more ukeire
WITH TENPAI12 ukeire

Both discards bring the hand to . Keeping the after leaves only 4 . The model gives up that and keeps 12.

Candidates ranked by Tenpai v1. The model outperformed its previous version in an 8,000-game duplicate test.
FROM LOG TO TABLE

Four actions, then replay the position.

  1. 01

    Import the game

    Upload a Tenhou, Mahjong Soul, City, or mjai log, or paste its public link.

  2. 02

    Find costly decisions

    The timeline isolates mistakes and inaccuracies among all your closed-hand discards.

  3. 03

    Review the candidates

    Compare the played discard, the Mortal candidate, , visible , , and safety.

  4. 04

    Replay the position

    Open the turn on the real table, change point of view, and step through the game.

QUESTIONS

Before you import your game.

Which game logs can I import?

supports complete four-player games from Tenhou, Mahjong Soul, City, and the mjai JSONL format. Compatible public links and exported files are accepted.

Is the review free?

Yes. As a guest, you can import one game and use its complete interactive review for one hour. A player profile then lets you keep that analysis.

Does the model explain why a move is better?

Mortal ranks reviewable discards. A separate deterministic layer compares , visible , , and safety without claiming to reveal the neural network’s internal reasoning.

What happens to an imported game?

A pre-sign-up import is temporary, is not added to your history, and is removed automatically after one hour.