The table in the white area below is to be filled in so that each row and each column has exactly 1 each of the letters A, B, and C, and two blank cells. The letters in the blue areas are clues that designate the nearest filled in letter. For example the leftmost letter to be filled in in the first row will be an A; the rightmost in the second row will be a B; the bottommost in the last column will be a C; etc. There may be blank cells intervening between the clued letter and the letter giving the clue.
From Mensa Puzzle Calendar 2019 by Fraser Simpson, Workman Publishing, New York, puzzle for November 11.