The term recreational mathematics denotes, on the one hand, all kinds of mathematical games (Play, game) that progress strictly according to fixed rules and that demand logical and strategic thinking; on the other hand, it refers to problems involving the use of logic or mathematics that are also accessible to non-specialists and that require no particular prior mathematical knowledge to solve. Alongside the element of determinacy arising from rules, many such games also involve elements of chance, such as throwing dice (Gambling). Mathematical games include board games li…