Sichuan Mahjong

Sichuan Mahjong · 1 fan

Robbing a Kong (Qiang Gang Hu) in Sichuan Mahjong: Fan, Examples and Odds

Robbing a kong example: 2-3 characters, 4-5-6, 5-6-7 and 7-8-9 dots and a pair of 9 dots, robbing the 4 characters someone adds to their pung

In Sichuan mahjong, robbing a kong (搶槓胡, qiang gang hu) adds 1 fan: someone who has punged a tile draws the fourth copy and upgrades the pung to a kong — and that tile is exactly what you need, so you "rob" it and win. Even a plain hand scores 1 fan this way, and the player upgrading the kong pays 2 units.

2-3 characters waiting on 1 or 4 characters; someone upgrades a pung of 4 characters, and you rob it
On this page
  1. The rules for robbing a kong
  2. How robbing a kong happens
  3. How robbing a kong is scored
  4. How it relates to other hands
  5. Robbing a kong odds
  6. Before upgrading a pung
  7. Robbing a kong in other mahjong styles
  8. FAQ

The rules for robbing a kong

How robbing a kong happens

All four copies of the robbed tile belong to the konger (three in the pung, one in hand), so the robber never holds that tile: you're on a two-sided, closed or edge wait that happens to need it.

How robbing a kong is scored

Fan add up, and each extra fan doubles the payment, up to the cap of 4 fan. The hands below are scored live by the same code the game uses (the self-draw bonus and kong payments come on top).

Robbing a kong (搶槓胡)1 fan
Total1 fan
Each payer pays 2 units

Units = 2 to the power of fan, up to the cap. Self-draw bonus and kong payments come on top.

Waiting on 1 or 4 characters, robbing the 4 characters added to a pung: even a plain hand gets 1 fan for robbing the kong.
Pure one suit (清一色)2 fan
Robbing a kong (搶槓胡)1 fan
Total3 fan
Each payer pays 8 units

Units = 2 to the power of fan, up to the cap. Self-draw bonus and kong payments come on top.

All characters, robbing the added 4 characters: pure one suit + robbing a kong.

Common combinations:

CombinationFanThe konger pays
Robbing a kong12 units
+ root24 units
+ Seven Pairs38 units
+ pure one suit38 units

How it relates to other hands

Robbing a kong odds

In 40,000 hands of normal computer play, robbing a kong was 0.18% of all wins, about once every 190 hands; of all kongs (concealed, exposed and upgraded together), 0.71% were robbed. Robbed-kong wins averaged 1.2 fan.

Bonus fanShare of wins
Win after a kong (槓上開花)0.88%
Deal-in after a kong (槓上炮)1.3%
Robbing a kong (搶槓胡)0.18%
Last-tile self-draw (海底撈月)0.30%
Last-tile discard (海底炮)0.31%
Heavenly hand (天胡)0.019%
Earthly hand (地胡)0.03%

Source: 40,000 hands of computer play on this site (four normal-level players, 115,067 wins in total), cap 4 fan.

Before upgrading a pung

To try it, open a table of online Sichuan mahjong — the computers play blood battle with you and count the fan for you.

Robbing a kong in other mahjong styles

FAQ

How many fan is robbing a kong?

It adds 1 fan to everything else; with a plain hand, the konger pays 2 units.

Can you rob a concealed kong?

No. In Sichuan mahjong only upgraded kongs (a pung plus a self-drawn fourth tile) can be robbed — not concealed or exposed kongs.

Who pays when you rob a kong?

The player who tried to upgrade the kong, as if they had dealt in; nobody else pays.

Does the robbed kong still collect "wind" money?

No. A robbed kong doesn't stand: the tile goes to the winner and the pung stays a pung.

Try it at the table

Sichuan Mahjong — Play Sichuan mahjong “blood battle” free in your browser against three computer opponents. 108 tiles, swap three, pick a void suit, pung and kong, and keep playing after someone wins. Automatic fan scoring, no sign-up.

Play nowSichuan Mahjong Fan Table