PENALTY FOR MISNAMING A DISCARD (Article 67)

Commentary: Occasionally, a player may misname their discard, leading to different outcomes based on when the mistake is noticed and how they are held accountable. It doesn’t matter if the misnamed discard is a symbol tile or a joker. Both situations follow the same principle: the hand’s validity depends on its overall structure, not a single tile. A symbol tile (e.g., dot, bam, crak, wind, dragon) can be easily verified within the hand’s pattern, regardless of whether the specific tile is on the table. On the other hand, a joker cannot be claimed or used to verify a winning hand, since it substitutes for another tile and cannot complete a hand the way a standard tile can. In both cases, players can verify the hand’s overall pattern without the misnamed tile, ensuring the game remains fair and the caller pays a penalty for the discarder’s error.

Here are four common scenarios, each with ramifications that affect the flow of the game and, in some cases, lead to penalties.

Misnamed Discard Noticed Immediately

If a player misnames a discarded tile but corrects the mistake before anyone else acts, the discarder or another player simply names the tile correctly. No penalty applies, and the game continues normally since no one else was affected.

Misnamed Discard as a Strategic Deception

A player could intentionally misname a discard to falsely suggest a tile is safe, hoping another player will throw it for a winning call. That would clearly be unethical.

If a discard is misnamed and no one notices or corrects it, play simply continues. Every player at the table shares responsibility for paying attention to both what is said and what is actually discarded.

So in a situation where a player misnames a discard, the error goes unnoticed, and the next player then discards that same tile believing it to be safe, a subsequent mah jongg declaration is valid.

The issue here is whether the misnaming was accidental or intentional. An accidental slip is human error. Intentionally misnaming a tile to mislead opponents crosses into unethical conduct.

This is a good reminder that players should both listen carefully and visually confirm what is happening at the table. Also see Integrity at the Table (Article 275).

Misnamed Discard Leading to Disqualification

If a player misnames a discarded tile and goes unnoticed until another player claims it, racks the wrong tile, or exposes incorrect tiles, the affected player may be disqualified. If disqualified, they must stop playing while the remaining three players continue. The discarder incurs no penalty.

This rule reinforces that each player is responsible for both seeing and hearing discards to maintain the integrity of their hand.

Misnamed Discard That Results in Mah Jongg

If a player misnames a discarded tile that influenced the player’s decision to declare mah jongg, the game ends, and the discarder is penalized by paying four times the hand’s value to the player who declared mah jongg, while the other players owe nothing.

In Mah Jongg Made Easy (2024, page 16, #3, the rule states, “[When a player misnames a discard resulting in another player declaring mah jongg] with the incorrectly named tile, the game STOPS. Miscaller pays claimant four times the value of hand.” Although the player who declares mah jongg receives payment, the league does not recognize that they won the hand (NMJL Bulletin 2026 #8).

Misnamed Discard That Results in Mah Jongg with Two Players

If a player misnames a discarded tile and two players declare mah jongg—one based on the misnamed tile and another on the actual tile—priority is given to the player who needs the actual tile to win. The discarder must correctly name the tile and pay double the hand’s value to the rightful winner, while the other players pay the hand’s value.

Verifying a Winning Hand After a Misnamed Discard

When a player declares mah jongg after hearing their winning tile, the hand does not require the final tile. This is because each hand follows a pattern that can be easily verified, even if a single tile is in question. Sometimes, the tile may not even be on the table. Additionally, if the misnamed discard was a joker, disregard it, as jokers can never be claimed.

Question from a player:  Is there a penalty for discarding a misnamed tile?

Answer from the NMJL: A tile cannot be claimed until correctly named. The correctly named tile may then be called for an exposure. If exposure is made with an incorrectly named tile, the hand is “dead.” The discarder is not penalized. However, if Mah Jongg is called with the incorrectly named tile, the game ceases, and the discarder pays the claimant four times the value of the hand. Others do not pay.

Source: Mah Jongg Made Easy (2024 page 19 #6); NMJL Bulletin 2020; 2026; SIMULTANEOUS CALL FOR MAH JONGG WITH A MISNAMED DISCARD (Article 94)

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Other answers from the NMJL: 

“If a miscalled tile is called, causing an invalid exposure, the calling player’s hand is dead and there is no penalty for the discarder of the misnamed tile. The caller should have been listening as well as looking when the tile was discarded. If the misnamed tile is claimed for mah jongg, the game stops and the miscaller pays the claimant four times the value of the hand; the other players do not pay.” 

“If the miscalled tile is called causing an invalid exposure, the calling player’s hand is dead and there is no penalty for the discarder of the incorrectly named tile.  If the incorrectly named tile is claimed for mah jongg, the game stops and the miscaller pays the claimant 4 times the value of the hand; others do not pay.  Remember, a tile may never be called unless correctly named.” 
 
“A tile cannot be claimed until correctly named. A player must look as well as listen before calling a discard for an exposed hand or mah jongg (see ruling regarding miscalling on the back of the card).” 
 
“A tile cannot be claimed until correctly named. Correctly named tile may be called for an exposure or mah jongg. However, if mah jongg is called with the incorrectly named tile, the game stops. Then miscaller pays claimant four times the value of the hand. Others do not pay.” 
 
“A tile cannot be claimed until correctly named. Correctly named tile may then be called for an exposure or mah jongg. However, if mah jongg is called with the incorrectly named tile, the game stops. Miscaller pays claimant four times the value of the hand. Others do not pay.” 
 
“A tile cannot be claimed until correctly named. If a misnamed tile is wanted for an exposure it cannot be claimed, there is no penalty. If a misnamed tile is wanted for mah jongg, game ends. Miscaller pays four times the value of the of the claimant’s hand. Other players do not pay. If no one claims mah jongg, the misnamed tile must be correctly named. It then may be called for pung, kong or quint for exposure.” 
 
“A tile cannot be claimed until correct named. If a misnamed tile is wanted for an exposure, the tile cannot be claimed until correctly named, no penalty. If a misnamed tile is wanted for mah jongg, the game ends. Miscaller pays declarer four times the value of the hand. Others do not pay mah jongg.”  

”You may never call a discarded joker for any reason. On rare occasion a joker may be misnamed and a player, not watching the table, will call the misnamed tile for mah jongg. In that case, the game ceases, and the miscaller pays the claimant 4 times the value of the hand. The caller does not have mah jongg, as a tile cannot be claimed until correctly named.”

Sources for other answers:  National Mah Jongg League Bulletin Q&A (2026, (1970 page 4, 1972 page 5, 1981 page 2, 1983 page 3, 1985, 1987 page 4, 1988 page 5, 1989 page 5, 1990 page 5, 1991 page 13, 1993 page 5, 1997 page 6, 2013, 2015, 2019, 2020, 2026)