Chombo: Difference between revisions

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'''Chombo''' (冲合) is a penalty to players performing illegal moves.  Some moves may be considered to be minor, like accidentally drawing the wrong tile from the wall.  Penalties subject to chombo are harsh enough to warrant point losses to the offender.  The penalty for chombo requires the offender to pay the amount of mangan.
'''Chombo''' is a penalty for heavy rule violations.


==Cheating==
Some moves may be considered minor and correctable, like accidentally drawing the wrong tile from the wall. Rule violations subject to chombo are harsh enough to abort the hand and impose a point loss on the offender.
Cheating is very possible in the game.  In fact, there are known various and elaborate cheating tricks.  Among these include stealing from the discard pile, or tile trading from the hand to the wall. For example, some tricks involve the ''sleight of hand''.


==Invalid win==
== Consequences ==
Players cannot declare a win with an incomplete hand or incorrect waiting tile.
 
A player penalized with chombo must pay a [[mangan|mangan-sized]] penalty. To each other player, the offender must pay what the offender would have received on a mangan tsumo without [[honba]]. An offending dealer must pay 4,000 to everyone, offending non-dealers must pay 2,000 to each non-dealer and 4,000 to the dealer.
 
The current hand is then aborted and repeated. Players who have declaerd [[riichi]] during the aborted hand get their riichi bet back. Most rules leave the honba count unchanged for the repeat, some rules may handle this like any other [[abortive draw]].
 
== Causes ==
 
These scenarios are heavy rule violations and are penalized with a chombo.


==Win with no yaku==
=== Cheating ===
A hand must have at least one yaku minimum to win. Therefore, declaring a win on a hand without yaku is penalized.
Cheating is very possible in the game.  There are known various and elaborate cheating tricks.  Among these include stealing from the discard pile, or tile trading from the hand to the wall. For example, some tricks involve the ''sleight of hand''.


==Win during furiten==
=== Invalid win ===
A player in [[furiten]] cannot win by ron.  Instead, by the rule of furiten, a player is limited to winning via tsumo.  Declaring ron while furiten is penalized.
Players cannot declare a win with an incomplete hand or incorrect waiting tile.


==Wall destruction==
=== Noten riichi ===
A player cannot crash and destroy the wall, such that the tile arrangement cannot be recovered. In fact, this act may be considered to be outright rude, if done intentionally.
Riichi must be declared with a ''tenpai'' hand. Therefore, riichi declared with a ''noten'' hand is penalized.


==Riichi based==
=== Unrevealed riichi ===
{{main|Riichi}}
If the hand ends in [[ryuukyoku]] while at least one player declared riichi, it is a requirement to show the hand as proof of being in tenpai. Depending on the specific rules, a player may refuse to show the hand and instead take the penalty.


Riichi has some very specific rules and breaking these rules may be grounds for chombo.
=== Win with no yaku ===
A hand must have at least one yaku minimum to win. Therefore, declaring a win on a hand without yaku is penalized.


===Noten riichi===
=== Win during furiten ===
[[Riichi]] must be declared with a ''tenpai'' hand. Therefore, riichi declared with a ''noten'' hand is penalized.
A player in [[furiten]] cannot win by ron. Instead, by the rule of furiten, a player is limited to winning via tsumo.  Declaring ron while furiten is penalized.


===Unrevealed riichi===
=== Invalid ankan ===
If the hand ends in [[ryuukyoku]] while at least one player declared riichi, it is a requirement for the riichi hands to be shown, as proof of being in tenpai.  Yet, a player may actually refuse to show the hand and instead take the penalty.
During riichi, a player may call [[kan]] with an ankan, or closed kan. However, this is invalid when the player's [[Machi|wait]] changes or the three concealed tiles could have been interpreted as something else than an ankou.


===Invalid ankan===
=== Wall destruction ===
During riichi, a player may call [[kan]] with an ankan, or closed kan. However, this is invalid when the player's [[Machi|wait]] changes.
A player cannot crash and destroy the wall, such that the tile arrangement cannot be recovered.


==External links==
== External links ==
[[Category:Game rules]]
[[Category:Game rules]]

Revision as of 10:33, 3 August 2013

Chombo is a penalty for heavy rule violations.

Some moves may be considered minor and correctable, like accidentally drawing the wrong tile from the wall. Rule violations subject to chombo are harsh enough to abort the hand and impose a point loss on the offender.

Consequences

A player penalized with chombo must pay a mangan-sized penalty. To each other player, the offender must pay what the offender would have received on a mangan tsumo without honba. An offending dealer must pay 4,000 to everyone, offending non-dealers must pay 2,000 to each non-dealer and 4,000 to the dealer.

The current hand is then aborted and repeated. Players who have declaerd riichi during the aborted hand get their riichi bet back. Most rules leave the honba count unchanged for the repeat, some rules may handle this like any other abortive draw.

Causes

These scenarios are heavy rule violations and are penalized with a chombo.

Cheating

Cheating is very possible in the game. There are known various and elaborate cheating tricks. Among these include stealing from the discard pile, or tile trading from the hand to the wall. For example, some tricks involve the sleight of hand.

Invalid win

Players cannot declare a win with an incomplete hand or incorrect waiting tile.

Noten riichi

Riichi must be declared with a tenpai hand. Therefore, riichi declared with a noten hand is penalized.

Unrevealed riichi

If the hand ends in ryuukyoku while at least one player declared riichi, it is a requirement to show the hand as proof of being in tenpai. Depending on the specific rules, a player may refuse to show the hand and instead take the penalty.

Win with no yaku

A hand must have at least one yaku minimum to win. Therefore, declaring a win on a hand without yaku is penalized.

Win during furiten

A player in furiten cannot win by ron. Instead, by the rule of furiten, a player is limited to winning via tsumo. Declaring ron while furiten is penalized.

Invalid ankan

During riichi, a player may call kan with an ankan, or closed kan. However, this is invalid when the player's wait changes or the three concealed tiles could have been interpreted as something else than an ankou.

Wall destruction

A player cannot crash and destroy the wall, such that the tile arrangement cannot be recovered.

External links