Free tool牌理
Riichi hand analyzer: shanten and tile acceptance
Shanten, tile acceptance and waits for any hand. Built for checking your own discards.
How to use
- Type your hand in the box, like 123m456p789s1122z, or tap tiles on the picker. A 0 is a red five.
- Use 14 tiles to compare discards. Use 13 to see what you need and what you’re waiting on.
- Switch the picker to Visible tiles and add discards, calls and the dora indicator. The counts drop to match.
- Tap Copy link to share the exact hand. The address holds it.
How it works
Shanten is how many tiles you are from tenpai. The analyzer checks three ways to finish (four sets and a pair, seven pairs, thirteen orphans) and reports the lowest.
Ukeire, or tile acceptance, counts the draws that lower your shanten. Each kind counts the copies not visible to you: four, minus the ones in your hand, minus the ones you list as visible.
With 14 tiles it tries every discard and sorts them by shanten, then by tiles accepted. Good shape counts, for a 1-shanten result, the draws that lead to a two-sided or wider tenpai.
It doesn’t weigh hand value, dora, safety or the score. Those are judgment calls.
Want a pro’s read on the hard ones?
Acceptance shows you the widest discard. It won’t tell you when to play for value or fold. Send me the hands that bug you and I’ll go through them.
Keep sharpening
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