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Sudoku Solver

Tool to solve sudoku/wordoku grids (directly or step by step). Sudoku is a game whose purpose is to fill a 9x9 grid with digits (or letters, or symbols) in order to get only one per line, column and block. A bloc is a delimited portion of the grid, by defaut sub-grid 3x3.

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Sudoku Solver -

Tag(s) : Number Game,Solver

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# Sudoku Solver

## Solve a sudoku grid

 Resolution Compute all solutions Step by Step Solution

Tool to solve sudoku/wordoku grids (directly or step by step). Sudoku is a game whose purpose is to fill a 9x9 grid with digits (or letters, or symbols) in order to get only one per line, column and block. A bloc is a delimited portion of the grid, by defaut sub-grid 3x3.

### How to fill the Sudoku grid?

One can make a copy/paste of type directly in cells. Letters (Wordoku) and digits are accepted.

Copy the content in the first cell 97 1 5 5 9 2 18 4 8 7 26 92 3 6 2 9 19 457  to get :

 9 7 1 5 5 9 2 1 8 4 8 7 2 6 9 2 3 6 2 9 1 9 4 5 7

### How does the step by step works?

Software solves the Sudoku just like an human and display each step of its progress to understand.
Sometimes, no logical reasoning is possible, the software make a random selection among the possible values for a cell and continue, if an incoherence happens (the sudoku becomes unsolvable), it rolls back to the random step and try another value.

### How to test if a sudoku has a unique solution?

dCode calculates all possible answers for the sudoku, not only the first one. If you have created a homemade sudoku, it is the perfect choice to check whether there are multiple solutions but only one possibility.

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## Source code

dCode retains ownership of the source code of the script Sudoku Solver. Except explicit open source licence (indicated Creative Commons / free), any algorithm, applet, snippet, software (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, translator), or any function (convert, solve, decrypt, encrypt, decipher, cipher, decode, code, translate) written in any informatic langauge (PHP, Java, C#, Python, Javascript, etc.) which dCode owns rights can be transferred after sales quote. So if you need to download the Sudoku Solver script for offline use, for you, your company or association, see you on contact page !

Team dCode read all messages and answer them if you leave an email (not published). It is thanks to you that dCode has the best Sudoku Solver tool. Thank you.

Source : http://www.dcode.fr/sudoku-solver
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