194693

The strategy used was to put all the possible numbers in the squares and slowly eliminate the answers that don't fit into the puzzle. We used the process of elimination combined with the guess and check strategy. We found this the best strategy and we also put all the possible answers in each square so that through elimination we knew which number was correct. We made sure that the numbers met the requirements of each problem and corrected the numbers if there were repeated numbers in each row and column.