Here is a double dummy puzzle that we had fun with in class two weeks ago. So far Jane Waldron is the only one I know of who has solved it. You are West in 5H. Opening lead by North is the 3 of clubs. How are you going to make 5 hearts against perfect defense? Specifically, how are you going to keep from losing two clubs plus the ace of hearts? Give it a try and let me know your solution in the comments: