Fill in the remaining squares in the above grid with the letters from TEACH so that no row, column or diagonal contains the same letter more than once. What letter should replace the red question mark?
Scroll down for a clue and further down for the answer.
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Clue: Assign the question mark space either A, E or T and see if you can complete the grid.
Scroll down for the answer.
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Answer: The letter ‘E’ replaces the question mark.
Puzzle a Day 