# Free Suduko Solver

## How do you solve a Suduko puzzle online?

Sudoku is a popular number-placement puzzle. The objective is to fill a 9×9 grid with numbers so that each column, each row, and each of the nine 3×3 sub-grids contains all of the digits from 1 to 9.

We will show you step by step, what can go where in the Sudoku grid, the perfect aid to solve the puzzle and to improve your understanding for future puzzles.

Instructions:
• Enter the numbers that you have been set in to the Sudoku grid below.

• We will then show you what numbers are still avilable in the other Sudoku boxes, this is calculated by:
• each 3x3 square
• each row
• the column

• Once we have shown you whats left, we then check each row and column to work out if there is only one possible number for a square.

• You can then either enter the numbers or use our buttons to do it for you.

• Update known squares: This will fill in the squares where there is only one possible number left
• Save cells: This will save the grid at a set point to allow you to return to it later
• Recall cells: This will set the grid back to what it was when it was saved
• Clear: This will clear the Sudoku grid
• Worked? This will check to make sure the completed grid is correct