http://meta.stackoverflow.com/questions/78568/new-badge-hard-question
Q&A for pro webmasters
-- Current candidates for proposed Hard Question badge -- http://meta.stackoverflow.com/questions/78568/new-badge-hard-question select Q.Id as [Post Link], Q.Score from Posts Q where Q.Score >= 15 and Q.PostTypeId=1 and Q.ClosedDate is null and Q.AcceptedAnswerId is null and not exists (select A.Id from Posts A where A.Score >= 2 and A.ParentId = Q.Id) order by Q.Score desc