Japanese Mahjong Japanese Mahjong Japanese Mahjong (Japanese: 麻雀, 麻将 or マージャン; "mājan"), also known as Rīchi Mahjong, is a variation of mahjong. While the basic rules to the game are retained, the variation features a unique set of rules such as "rīchi" and the use of "dora". The main mahjong article contains general terms, but only English and Japanese terms are used here. Terms like "chow," "pung," and "kong" are not used in this variation, yet their functions are still used. Instead, they are referred to in Japanese as "chī", "pon", and "kan". In 1924, a soldier named Saburo Hirayama brought the
Chow variety a finite set of "d" distinct points. Then the coordinates of the "d" points of intersection are algebraic functions of the Plücker coordinates of U, and by taking a symmetric function of the algebraic functions, a homogeneous polynomial known as the Chow form (or Cayley form) of Z is obtained. The Chow coordinates are then the coefficients of the Chow form. Chow coordinates can generate the smallest field of definition of a divisor. The Chow coordinates define a point in the projective space corresponding to all forms. The closure of the possible Chow coordinates is called the Chow variety. The