Looking for an old Black and White murder mystery. In the beginning of the movie, the detective identifies the 3 clues that helped him solve the case to the viewers. One of the clues is a chess piece. Unfortunately, I have been looking for this movie for 20 years. Everyone that remembers it, can only remember the scene I described, but not a movie title or actor's name. Unfortunately, I can't remember any actor being noteworthy as far as fame. And before you ask, It is not Ellery Queen. Although I remember the detective being about his 30's or 40's, with very strong features, like Carey Grant.