Passed Hu
That tile type cannot be used for a discard Hu until the player draws. The hand may still self-draw, or Hu on a different eligible tile type.
Rules Atlas · Claim state
Passed Hu 過水 in Singapore Mahjong
A pass can change what is legal on the next identical discard. The Wong practice table keeps separate temporary locks for winning claims and set claims, then clears both on the player's next draw.
Written by Wong Hong Wei · Reviewed · Scope: Wong practice table v1
Direct answer
Passing Hu blocks Hu on that same tile type until your next draw. Passing an eligible Pong, Kong or Chi blocks that tile type for those set claims until your next draw, but does not by itself block Hu. Your own latest discard is also unavailable for any claim until you next draw.
Three states, not one vague "furiten"
Passed Pong, Kong or Chi
That tile type cannot be used for Pong, Kong or Chi until the player draws. This set-claim lock does not by itself prevent a later Hu.
Latest tile thrown
The player's own most recent discard cannot be reclaimed or used to Hu until the player draws again.
Worked scenarios
Pass Hu, same tile appears again
West can legally Hu on 5 Circles but passes. Before West draws, North discards another 5 Circles.
Result here: West cannot Hu on that 5 Circles. After West's next draw, the lock clears.
Pass Pong, later the tile wins
West holds two Red Dragons and passes an eligible Pong on Red Dragon. Before drawing, another Red Dragon is discarded and now completes West's whole hand.
Result here: the passed set-claim lock blocks Pong or Kong, not Hu. West may Hu if the hand is otherwise legal.
Pass Chi, another copy appears
The next player could Chi 4 Circles with 2-3 but passes. Before that player draws, another 4 Circles appears.
Result here: the player cannot Chi, Pong or Kong that tile under the site rule. A legal Hu remains separate.
Draw resets the state
After any of the passes above, the player reaches the next normal draw.
Result here: passed-Hu, passed-set and latest-own-discard restrictions clear. New choices are judged from the current hand.
What the current profile options mean
| Profile choice | Meaning | Duration |
|---|---|---|
| Wong practice-table lock | Passing Hu locks Hu on that tile; passing an eligible set claim locks Pong, Kong and Chi on that tile. The two claim classes remain separate. | Until the player's next draw |
| Hu-only lock | Only passing a winning discard creates a temporary restriction; passing Pong, Kong or Chi does not. | Until the player's next draw |
| No passed-claim lock | A pass creates no continuing restriction. | None |
Correction made 25 August 2026: an earlier companion FAQ said passing Chi alone did not lock the tile under the default profile. That contradicted both the game and the guide. The game has separate passed-win and passed-set arrays, and passing an eligible Chi does create the temporary set-claim lock.
Do not confuse this with the post-claim discard rule
After actually claiming Chi or Pong, the player must discard a different legal tile to finish the turn. The claimed tile cannot be swapped straight back; after a Chi at one end of a run, the opposite extension can also be temporarily forbidden. That post-claim discard restriction ends when a different tile is discarded. It is separate from the passed-claim lock described on this page.
Canonical rule record
This evidence block is generated from the public v1 registry. The legacy API key passed-claims remains supported; SGMJ-PASSED-CLAIMS-001 is the stable cross-page identifier.
| Rule dimension | Machine key | Site default |
|---|---|---|
| Passed Hu Lock | passedHuLock | Same tile type for hu |
| Passed Set Lock | passedSetLock | Same tile type for pong kong chi |
| Reset | reset | Players next draw |
| Intervening Claims Reset | interveningClaimsReset | No |
Check a table situation. The picker offers conditional examples, not a ruling on an unseen hand. Live replay currently covers the five Ping Hu worked hands only; Bao, passed claims and multiple-call positions remain unavailable.
Published deterministic fixtures
passed-hu-lock— Can Hu On Five Circles: Nopassed-set-lock— Can Chi: No; Can Pong: No; Can Kong: Nopassed-lock-clears-on-draw— Lock Cleared: Yes
Registry 2026.08.26: canonical rules · fixtures. These records verify this site's chosen behaviour; they do not claim that all Singapore tables use it. Independent Mahjong-expert and fluent Chinese-language review remain pending.
Source comparison and provenance
- App behaviour: the current game stores passed wins separately from passed set claims. Its regression tests verify that passing Pong or Chi does not block a future Hu, and that the locks clear on the next draw.
- Site specification: Calls and claims states that passing Hu creates the Hu lock, while passing Pong, Kong or Chi creates the separate lock covering all three set claims until the next draw.
- External comparison: long-standing references such as SingaporeMahjong.com document their own claim rules. House groups may use Hu-only, broader, shorter, longer or no locks, so the duration must be named.
Terminology note: "furiten" is a Japanese Mahjong term and can hide important rule differences when imported here. This page uses passed Hu and passed-set lock, then states the exact trigger and reset.
Passed Hu FAQ
What happens after passing Hu?
You cannot Hu on that same tile type until your next draw. Drawing clears the temporary passed-Hu lock.
Does passing Pong or Chi create a lock?
Yes for set claims under the Wong rule. Passing an eligible Pong, Kong or Chi blocks that tile type for those set claims until your next draw, but it does not by itself block Hu.
Can I claim my own latest discard?
No. Your latest own discard is temporarily unavailable for Hu, Pong, Kong or Chi until you next draw.