What strategy maximizes the probability of having the real number x as the result (wins-losses) of n bets, given that each bet is between 0 and 1 inclusive, and the probability of winning any given bet is p? More specifically, if x is an integer, is it always optimal to bet 1 until x is obtained and 0 thereafter? These questions are answered for p= 1 2, and some partial results are given for other values of p. The question of uniqueness of optimal strategies for x an integer, and p= 1 2, is also settled. © 1979.