Nagashi Mangan (流し満貫)
Reach the exhaustive draw with every one of your discards a terminal or honor, none claimed — scores a fixed mangan. Reference only: the calculator scores completed hands, so it doesn't detect this one.
How Nagashi Mangan (流し満貫) works
Nagashi mangan is a special mangan-value score for reaching the exhaustive draw with every one of your discards a terminal or honor — and none of them claimed.
It's scored at the end of a drawn round, not on a winning hand: if the wall runs out and your entire discard row is terminals and honors that no opponent ever called, you're paid as if you'd won a mangan tsumo. One claimed discard, or a single simple tile in the row, voids it. Because it hinges on your discards rather than your hand, it rewards a defensive round gone right — you fed nobody and still get paid. It's a reference entry here: this calculator scores completed hands, so it can't detect nagashi mangan.
- •Scored on an exhaustive draw — your hand shape is irrelevant.
- •Every discard must be a terminal or honor, and none may have been claimed.
- •Not calculator-detected: apply the mangan payout manually at the table.
Nagashi Mangan (流し満貫) — FAQ
Is nagashi mangan a yaku?
Not exactly — it's a special scoring rule that pays mangan on a drawn round. Most rulesets treat it as replacing the usual tenpai payments; some tables don't use it at all, so confirm before play.
Do I still need to be tenpai?
Under most rules, no — the discard row alone qualifies you. A minority of house rules add a tenpai requirement, which is worth agreeing on in advance.