Visual Card Games for Boys and Girls

摘要

In this paper, we propose a new game for two parties X and y of boys and girls, respectively. In this game, each boy and each girl receives a card printed on a transparency, and when a boy and a girl stack their card together, a secret image is recovered. This game is called a visual card game for boys and girls or a visual card game of K(x, y)-type, where K(n, m) denotes the complete bipartite graph.