dCode is free and its tools are a valuable help in games, maths, geocaching, puzzles and problems to solve every day! A suggestion ? a feedback ? a bug ? an idea ? Write to dCode!

Tool / solver to solve irregular 8x8 Sudokus, with an 8x8 grid with blocks to be defined, the other rules (rows and columns) remain unchanged.

Answers to Questions

How to solve a 8x8 Sudoku grid?

An 8x8 sudoku is like a classic 9x9 sudoku except for its irregular blocks, whose format depends on the grids played.

The 8x8 sudokus resolution follows the same reflection steps as classical sudokus, but with only 8 digits (or 8 distinct characters).

On dCode, indicate the contents of the boxes (with only digits or letters). To indicate the blocks of 8 boxes, click under the grid on a predefined example or fill countours manually by pointing them.

Example: The content 8 6 3 5 4 2 7 1 can be pasted in the first box to get

8

6

3

5

4

2

7

1

How does the step by step works?

The program resolves the 8x8 sudoku by simulating each of the deduction steps of the player and displays each resolution steps with their explanations.

Source code

dCode retains ownership of the source code of the script 8x8 Sudoku Solver online. 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, Matlab, etc.) which dCode owns rights will not be released for free. To download the online 8x8 Sudoku Solver script for offline use on PC, iPhone or Android, ask for price quote on contact page !