Sichuan Mahjong

Blood battle mahjong with 108 tiles, swap three and a void suit

Free to play in your browserWeb · installable PWA11 languages

Sichuan "blood battle" mahjong, where the hand plays on after a win. 108 tiles, swap three, a void suit, pung and kong only, and doubling fan.

Sichuan Mahjong artwork

Features

Blood battle rules

The hand continues after a win until three players have won or the wall runs out.

Swap three, pick a void

Pass three tiles of one suit, then choose a suit you must discard before you can win.

Every payment tallied

Fan, kong payments, void-suit and not-ready penalties and kong refunds are settled for you.

Online rooms

Quick match plays four hands; private rooms can also be one hand or eight.

How it works

  1. 1

    Swap and void

    After the dice, pass three tiles of one suit and choose the suit you will give up.

  2. 2

    Pung, kong, no chow

    Claim any discard to pung or kong; kongs are paid on the spot.

  3. 3

    Win and play on

    Win with four sets and a pair or seven pairs, then watch the others play on.

About the game

Sichuan mahjong, known for its “blood battle” (血戰到底) rule, is the style played in teahouses across southwest China. It uses just 108 tiles, the three numbered suits with no honours or flowers, and each player holds 13. Two steps come before play. Everyone passes three tiles of one suit in a direction set by the dice (換三張), then chooses a void suit (定缺) that must be cleared from the hand before a win is allowed. There is no chow, only pung and kong.

The defining twist is that a win does not end the hand. The winner steps out and the others keep playing until three people have won or the wall is empty. Fan double the payout each time, kongs are paid immediately, and at an exhausted wall anyone still holding a void-suit tile pays the others, while players who are not ready pay those who are. With only three suits, one-suit hands come up far more often than in other styles.

What Seriauth built

The game implements the full settlement: wind and rain kong payments, call transfer (a player who deals in right after a kong hands that kong’s takings to the winner), and the end-of-hand checks, where players who are not ready also refund their kong income. Three AI levels range from a loose player to one that reads ready-looking opponents and never feeds a void suit. Wait hints, automatic fan counting, a nine-chapter guide and four-player online rooms complete it.

FAQ

Why are there only 108 tiles?

Sichuan mahjong uses only characters, dots and bamboo. There are no winds, dragons or flowers.

What is the void suit?

After the swap each player picks one suit to give up. You must discard all of it, and you can never win while holding a tile of that suit.

Can more than one player win on the same discard?

Yes. Several players can win on one discard, and the hand continues until three players have won.

How is a win scored?

A win is worth the base times 2 to the power of its fan, up to the cap set for the game.

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