Ｈａｋｋｅfuda is a Japanese game based on the Yi Jing (I Ching) Ba Gua (Pa Kua) figures. The box contains 139 cards total and includes a deck of 8x8 trigrams and all 64 hexgrams of the Yi Jing series. Each deck includes two blank cards. There are seven reference cards included for the games playable with the two decks. A small gameboard is included. From the back of the box, translated from Japanese: 'Hakkefuda is a set of original game cards that takes for its motif the eight trigrams (Gua) used in fortune telling and Feng Shui. It is possible to play several card and Hanafuda style games. "Gua" were invented in Ancient China, representing all things and phenomena through the two fundamental ideas of yin and yang, one could say they are the first digital inscriptions. The Ba Gua represent the fundamental attributes of all things through three yin-yang lines: they represent "heaven", "earth", "thunder", "wind", "water", "fire", "mountain", and "spring".' The box contains rules for three games, entitled "Taikoubou" (太公望 - The Great Duke's Hope), "Houshinhakkejin"(封神八卦陣 - Signet God Ba Gua Formation), and "Hakkaken"(八卦剣 - Ba Gua Sword)