SUDOKU
Level of Difficulty: VERY DIFFICULT
Fill the grid so every row, every column and every 3X3 grid contains digits 1 through 9.
No number repeated in any row, column or box
Level of Difficulty: VERY DIFFICULT
Fill the grid so every row, every column and every 3X3 grid contains digits 1 through 9.
No number repeated in any row, column or box