Design Principles of the Four Seas Mahjong Beginner Edition

Four Seas Mahjong is a mahjong ruleset designed around the philosophy of hand-building.

Hand-building mahjong treats the creation of beautiful and difficult scoring patterns as a primary source of enjoyment. Historically, mahjong patterns grew from a few to many: during the 1980s and 1990s, regional New Style rules often contained dozens or even hundreds of patterns. Hand-building and patterns were at their center. Over the past two or three decades, however, many regional Chinese rules have become simpler. Their entertainment has shifted away from hand-building toward luck-driven mechanisms: doubled payments for dealer or challenges, horses and birds, bonus tiles, wildcards, kongs, and their variants. Gambling has become a major source of enjoyment.

The large number of hand-building patterns can also be unfriendly to newcomers. This is one reason why regional rules simplify their pattern lists. Chinese Official Mahjong has not grown widely despite its national-standard status; one important reason is that its 81 patterns and eight-point minimum discourage many new players at first sight. Accessibility and hand-building depth are an inherent tension. Four Seas addresses it with a sequence of rulesets: from few patterns to many, and from a simple winning condition to formal minimum winning requirements. Players can progressively learn patterns and tactical play.

The earliest introductory version of Four Seas was the Recreational Edition, now called the Basic Edition, with eighteen patterns. When we used it to introduce new players, we found that even this was too much to absorb at once. For beginners, improving tile efficiency to complete four melds and a pair is the central skill. Building combination routes such as Pure Straight and Mixed Triple Sequence is beyond their current ability: they can neither remember them easily nor build them reliably.

Research on short-term memory produced Miller's law: an ordinary person's memory span is roughly seven to eight items. The earlier Recreational Edition's eighteen patterns far exceeded this number. We therefore designed a true Beginner Edition with only seven patterns: the most classic, easiest to learn, and most frequent. In Four Seas statistics, the whole-hand patterns All Sequences, All Simples, Mixed One-Suit, All Triplets, and Pure One-Suit occur at 30%, 9%, 15%, 14%, and 4% respectively; the single-meld patterns Value Honor and One Kong occur at 22.6% and 10.5%.

Beginners use the rules by building the ordinary four-melds-and-a-pair winning hand, with no minimum winning score. After winning, they score whichever of the seven patterns the hand contains. If it contains none, it is a Chicken Hand and scores one point. As new players master the basic structure, they naturally become familiar with these patterns and begin to build hands for higher scores.

Beyond four incidental patterns, the Basic Edition contains fourteen hand-structure patterns. It adds seven patterns to the Beginner Edition, again matching the seven-to-eight-item increment suggested by Miller's law.

The table compares the complete pattern lists of Four Seas Beginner, Hong Kong Qingzhang, and Four Seas Basic with Zung Jung, Riichi, and Chinese Official Mahjong.

Pattern	Four Seas Beginner	Hong Kong Qingzhang	Four Seas Basic	Zung Jung	Riichi	Chinese Official
All Sequences	✓	✓	✓	✓	✓	✓
All Simples	✓		✓	✓	✓	✓
One Kong	✓		✓	✓	Fu	✓
Value Honor	✓	✓	✓	✓	✓	✓
Mixed One-Suit	✓	✓	✓	✓	✓	✓
Pure One-Suit	✓	✓	✓	✓	✓	✓
All Triplets	✓	✓	✓	✓	✓	✓
Seven Pairs	✓		✓	✓	✓	✓
Outside Hand			✓	✓	✓	✓
Identical Sequences			✓	✓	✓	✓
Consecutive Six			✓			✓
Pure Straight			✓	✓	✓	✓
Two Mixed Sequences			✓			✓
Mixed Triple Sequence			✓	✓	✓	✓
Last Tile Draw		✓	✓	✓	✓	✓
Last Tile Claim			✓	✓	✓	✓
Robbing a Kong		✓	✓	✓	✓	✓
Win on Kong		✓	✓	✓	✓	✓
Fully Concealed Hand		✓		✓	✓	✓
Self-Draw		✓				✓
All Terminals and Honors		✓		✓	✓	✓
Little Three Dragons		✓		✓	✓	✓
Big Three Dragons		✓		✓	✓	✓
All Honors		✓		✓	✓	✓
Little Four Winds		✓		✓	✓	✓
Big Four Winds		✓		✓	✓	✓
Four Concealed Triplets		✓		✓	✓	✓
Four Kongs		✓		✓	✓	✓
All Terminals		✓		✓	✓	✓
Blessing of Heaven		✓		✓	✓	✓
Blessing of Earth		✓		✓	✓	✓
Thirteen Orphans		✓		✓	✓	✓
Kong After Kong Self-Draw		✓
Nine Gates		✓		✓	✓	✓

All seven Beginner patterns are used by each of the three competitive rulesets. Of the Basic Edition's eighteen patterns, only Consecutive Six and Two Mixed Sequences are absent from both Riichi and Zung Jung; their higher forms, Pure Straight and Mixed Triple Sequence, are included. The two basic Four Seas versions therefore select widely accepted, common patterns. They can serve both as a foundation for advancing to Intermediate and Standard and as an entry point to Chinese Official, Riichi, and Zung Jung.

Hong Kong Qingzhang has a fuller pattern list, but many of its additions, such as Little Three Dragons and All Terminals and Honors, are harder patterns with little practical value for a beginner who cannot realistically complete them. At the same time, it lacks many main hand-building routes, including Pure Straight, Mixed Triple Sequence, and Outside Hand. Its coverage of hand-building is therefore less complete.