Using Java

Generate an n times n solved Sudoku game and remove one random element from every row. A simple way of generating a solved Sudoku puzzle is as follows: for r =0 to n-1 startNum = squareroot (n) * (r % squareroot (n)) + (r/sqrt(n)): for c =0 to n-1 S[r][c] = ((startNum + c) % n) + 1