Enter your numbers and step though to the solution

Free Suduko Solver

How do you solve a Suduko puzzle online?

Sudoku is a popular number-placement puzzle. The objective is to fill a 99 grid with numbers so that each column, each row, and each of the nine 33 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