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Chinese Mahjong Online

Chinese Mahjong, also known as Mahjong Competition Rules(MCR Mahjong). Its the most difficult rule in the Mahjong, for example, it has 81 scoring hands. Who can remember? 😱

But fortunately you have come to the right place, MahJongo.com is the best place to play Chinese Mahjong online. 🤗

Chinese Mahjong Rules

Chinese Mahjong rules vary across China. Our website uses the standard Mahjong Competition Rules (MCR). While regional variations exist, we call them all "Chinese Mahjong" here.

Basic Rules

Basic Rules: Mahjong Tiles, Chow, Pung, Kong, Pair, Ready Hand, Winning Hand.

After understanding the basic rules, I'll explain the most crucial aspect: How to win. In standard Chinese Mahjong, a special rule requires a hand to have at least eight Fan to win.

How to Win

Fan: Fan represents a scoring unit. It's a point system used to determine the value of a winning hand. Each distinct feature or combination of tiles in a winning hand contributes a certain number of fan. We've detailed the complete Fan table on our website's Learn page, so I won't go into specifics here.

Mahjong hand: The basic type of Mahjong hand is structured with four sets and a pair, in which a set is a chow, a pung, or a kong, as follows:

  • 11, 123, 123, 123, 123
  • 11, 123, 123, 123,111 (or 1111)
  • 11, 123, 123, 111, 111 (or 1111)
  • 11, 123, 111, 111, 111 (or 1111)
  • 11, 111, 111, 111, 111 (or 1111)

A few of the permissible hands use special structures, utilizing pairs or single tiles as follows:

  • 11, 11, 11, 11, 11, 11, 11 (Seven Pairs);
  • 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 11 (Thirteen Orphan)

1 = a single tile; 11 = a pair; 111 = a pung; 1111 = a kong; 123 = a chow

Two ways to make Mahjong: the first is self-drawn, and the second is by discard.

  • Self-Drawn: To make Mahjong by taking a fresh tile from the wall yourself. (This isn't displayed in our game; the system automatically taking tiles for you.）
  • By discard: To make Mahjong with a tile discarded by another.

Comprehend the table: The green numbers on the left indicate the Fan points, and the green text at the top indicates the Fan name. You can look up the points for a Fan by its name. If the total score is greater than or equal to eight points, you can declare yourself winning.

Example：

This hand follows: 123, 123, 123, 111, 11

So it's already a winning hand. This hand contains the following Fan. These Fan add up to a total of 21 Fan, which is greater than 8 Fan, allowing for an immediate win.

  • Pure Shifted Chows--16 Fan
  • Concealed Hand--2 Fan
  • One Voided Suit--1 Fan
  • Single Wait--1 Fan
  • No Honors--1 Fan

Therefore, to win a hand, a tile combination needs to satisfy two conditions:

  • It must conform to the "four sets and a pair" rule.
  • It must have at least 8 Fan.

How to Calculate the Score

The Points structure of winning Hand. It composes Extra Points, Basic Points and Penalty Points.

  • Extra Points: Non-winning players must pay 8 points to the winning player;
  • Basic Points: points scored, based on the fan claimed by the winning player;
  • Penalty Points: if a player has fouled during the play of the hand, the relevant points must be subtracted after the Hand or a complete Game (Session) has been finished.

How to calculate the points after a hand is finished. The following formula should be followed when counting point.

  • Win by self-drawn: Extra Points ＋Basic Points, then multiply ×3 (each player pays Extra Points + Basic Points to the winner);
  • Win by discard: Extra Points × 3 ＋Basic Points ×1 (Discarder pays winner Basic Points + Extra Points, and the other two players pay the winner Extra Points only).

Chinese Mahjong Fan List

Resource

Chinese Mahjong Tile Generator

Chinese Mahjong Score Calculator

Special Thanks

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