In a Sudoku puzzle, you place digits from 1 to 9 in a 9x9 grid of cells. Some of the cells have digits already filled in. The puzzle is to fill in the remaining cells in such a way that each digit from 1 to 9 appears exactly once in each row, once in each column, and once in each of the nine 3x3 regions.

If you have a particular Sudoku puzzle, you can use this form to see how to solve it, step by step.

Please fill in the cells whose digits are known, and then click Analyze.