Answers that earn >67% of the total score for a question's answers, but lost out to another answer for acceptance.
Q&A for professionals and students of engineering
-- First all questions with two answers, and their total score.
select max(Question.Id), max(Question.AcceptedAnswerId), sum(AllAnswers.score)
from Posts as Question, Posts as AllAnswers
where Question.Id = AllAnswers.ParentId
and Question.AcceptedAnswerId is not NULL
and Question.AnswerCount >= 2