Sudoku - 9x9

A sudoku is a grid of nine by 9 squares. The grid has 9 rows, 9 columns and 9 3x3 square regions. The goal of Sudoku is to fill a 9 x 9 square grid with numbers, so that each row, each column and 3x3 section contains the numbers 1 to 9. At the start of the game, the 9x9 grid will have squares already filled. Your task will be to use the logic to fill in the missing numbers and complete th…