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6 pairwise comparisons

Mahjong variant comparisons

Riichi, MCR, Hong Kong, and Taiwanese — all four are called mahjong, but they barely play the same game. These side-by-side comparisons break down hand structure, scoring math, signature mechanics, and when to pick each one.

Pairwise comparisons

All six variant pairings

Riichi vs MCR

Riichi and MCR are the two most precise competitive mahjong rulesets — Riichi dominates Japan and online play, MCR is the international tournament sta

Hong Kong vs MCR

Hong Kong (Cantonese / 港麻) and MCR (Chinese Official / 国标) are both Chinese-origin mahjong variants — but they could hardly score more differently. HK

Hong Kong vs Taiwanese

Hong Kong and Taiwanese are both casual home-table variants — but they evolved on different islands with different rules. The biggest difference: Taiw

Riichi vs Hong Kong

Riichi and Hong Kong are the two most popular casual mahjong variants in the world — Riichi via Japanese culture export (anime, online apps), Hong Kon

Riichi vs Taiwanese

Riichi and Taiwanese diverge on the most fundamental level: they don't even use the same hand size. Riichi is 14 tiles (4 melds + pair), Taiwanese is

MCR vs Taiwanese

MCR is the international tournament code; Taiwanese is the family-table tradition of Taiwan. Both are Chinese-origin, both use chow/pung/kong melds —

Sichuan vs MCR

Both Sichuan (血战麻将) and MCR (国标) are Chinese mahjong variants — but they hail from opposite ends of the spectrum. Sichuan is the variant 100 million m

Sichuan vs Hong Kong

Sichuan and Hong Kong are both casual Chinese mahjong variants with exponential scoring — they look similar at first glance. The real differences are

Sichuan vs Taiwanese

Sichuan and Taiwanese sit at opposite ends of casual Chinese mahjong. Sichuan strips the game down: no honors, no chi calls, smaller hand, fast rounds

Riichi vs Sichuan

Riichi and Sichuan represent two extremes of mahjong design. Riichi adds depth: fu calculation, riichi declarations, dora, ippatsu, ura dora. Sichuan

The four variants

Variant landing pages