A blackmailer has stolen a letter, whose contents, if revealed would destroy the reputation of Lady S. She has contracted with Inspector Dupin to find that letter. There are two places where the blackmailer could have hidden the letter. One of these places is easy to access, both for the blackmailer and for Dupin. The other place is difficult to access for both of them. Dupin has permission to look in only one of the two places. For the blackmailer, there are two possible strategies. Hide the letter in the easy place. Hide the letter in the hard place. For Dupin there are two possible strategies. Look in the easy place. Look in the hard place. The payoff to Dupin is 3 if he finds the letter in the easy place and 2 if he finds the letter in the hard place. If he looks in the east place and doesn’t find the letter, his payoff is 0 and if he looks in the hard place and doesn’t find the letter, his payoff is -1. The payoff to the blackmailer if he hides it in the easy place and Dupin doesn’t find it is 3 and if he hides it in the hard place and Dupin doesn’ t find it, his payoff is 2. The payoff to the blackmailer if he hides it in the easy place and Dupin finds it is 0. If he hides it in the hard place and Dupin finds it, his payoff is -1.