amidakuji (11. 918)

A way of establishing 1:1 correspondence with any number of random pairings of equal size—for instance assigning roles to actors or chores to a group of helpers—the lottery game of chance, guaranteeing equal chance and distribution is called the above in Japan (阿弥陀籤, after the aspect of the Buddha associated with discernment and perception), in Korean as Sadaritagi (사다리타기, ladder climbing) and in Chinese as Guijiaotu (鬼腳圖, a ghost leg diagram). Participants’ names are listed in the row above with vertical lines dropping down to an assignment directly below. Concealing the names and jobs, the lines are hashed with random horizontal detours that must be taken on to the next column until reaching the bottom. Revealing the lines to the players but still keeping the other names and jobs concealed, they choose their path downward, the permutations in the snaking path ensuring all tasks are taken—unlike with drawing lots, flipping a coin. Aside from practical applications, such lottery elements can be found in the bonus rounds in video games to randomise one’s chances of getting the best prize.