Question: A game board has 3 3 equal squares. You are required to fill each square with a number between 1 and 9 such that

A game board has 3 × 3 equal squares. You are required to fill each square with a number between 1 and 9 such that the sum of the numbers in each row, each column, and each diagonal equals 15. Additionally, the numbers in all the squares must be distinct. Use ILP to determine the assignment of numbers to squares.

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