This strategy would work if there is no restriction as to who would give his answer first.
In all cases at least two hats are same. The person who sees two same hats answers first and says "Pass". This way the other to would come to know that their hat is same. And they would look at each other's hats and answer the question.
This strategy would work if there is no restriction as to who would give his answer first.
In all cases at least two hats are same. The person who sees two same hats answers first and says "Pass". This way the other to would come to know that their hat is same. And they would look at each other's hats and answer the question.