Learn Mahjong Competition Rules (MCR), the international tournament standard. 81 fan patterns, scoring tables, and strategy for competitive play.
Mahjong Competition Rules (MCR), also known as Chinese Official, is the standardized tournament ruleset established by the Chinese National Mahjong Committee in 1998. It was adopted by the World Mahjong Organisation for international competition.
While MCR evolved from Chinese Classical mahjong, there are significant differences:
| Feature | Chinese Classical | MCR |
|---|---|---|
| Scoring patterns | ~20 patterns | 81 patterns |
| Minimum to win | 0 (varies) | 8 fan |
| Flower tiles | Bonus points | Specific fan patterns |
| Tournament use | Casual play | International standard |
MCR uses a fan-based scoring system with 81 recognized patterns divided into categories:
The total fan value determines the final score, with a minimum of 8 fan required to declare a winning hand.
Learn Mahjong Competition Rules (MCR), the international tournament standard. 81 fan patterns, scoring tables, and strategy for competitive play.
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