Research on the Rule System, Game Mechanism, and Scoring Model of Chinese Local Mahjong Variants: A Case Study of the “Wanghuzhuang” Village

This paper systematically documents the rule system and scoring model of “Wanghuzhuang” Mahjong, a unique Chinese local variant. Through field investigation and rule deconstruction, the study details seating determination, tile composition, core winning preconditions (the “Qingmen” requirement and “≥8 tiles” restriction), special hand patterns (Seven Pairs, Dragon Hand), and the dynamic “Hui’er” wildcard mechanism. It analyzes the zero-sum scoring system: initial 15-point allocation, differentiated scoring for standard models (self-draw only) versus special patterns (allowing dianpao), “Qingyise” doubling, and the “zero-point protection” clause. The study finds that “Wanghuzhuang” fundamentally reshapes player strategies through its mandatory “Qingmen” precondition and “Hui’er” uncertainty, constructing a multi-layered risk-reward model. The “zero-point protection” clause embodies inclusive folk wisdom ensuring game integrity. This research concludes that “Wanghuzhuang” Mahjong constitutes a structurally rigorous, logically self-consistent system rich in strategic variables, offering a vivid sample for studying folk wisdom, probability calculation, and decision-making psychology.