Search for a tool
7x7 Sudoku Solver

Tool/solver to resolve irregular sudoku 7x7, ie with a 7x7 grid, but with non-square irregular blocks, the rule of rows and columns remain unchanged.

Results

7x7 Sudoku Solver -

Tag(s) : Number Games

Share
dCode and more

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!

Please, check our dCode Discord community for help requests!
NB: for encrypted messages, test our automatic cipher identifier!

Feedback and suggestions are welcome so that dCode offers the best '7x7 Sudoku Solver' tool for free! Thank you!

# 7x7 Sudoku Solver

## Solve a 7x7 irregular sudoku grid

 Resolution Compute all solutions Step by Step Solution

### How to solve a 7x7 Sudoku grid?

A 7x7 sudoku is similar to a 9x9 classic sudoku, the difference is in the blocks that are irregular (jigsaw puzzle like) and whose shape depends on the played grids (the so-called blocks of size 7 form some sort of puzzle in the grid).

The sudoku7x7 resolution uses the same deduction steps as classical sudoku, but is limited to 7 digits (or 7 distinct characters).

On dCode, the resolution is done by indicating the contents of the boxes (only letters or numbers). NB: possibility to copy and paste 49 characters with a space as empty box.

To indicate the blocks of 7 boxes, click under the grid on one of the predefined examples or fill them manually by pointing the contours.

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

 1 ␣ ␣ ␣ ␣ ␣ ␣ ␣ ␣ 2 ␣ ␣ ␣ ␣ ␣ ␣ ␣ ␣ ␣ 5 ␣ ␣ 3 ␣ 4 ␣ ␣ ␣ ␣ ␣ ␣ ␣ ␣ ␣ ␣ ␣ ␣ ␣ ␣ 6 ␣ ␣ ␣ ␣ ␣ ␣ ␣ ␣ 7

### How does the step by step works?

The program resolves the 7x7 sudoku by simulating the deduction steps of a player and displays each of the steps in the resolution with an explanation.

## Source code

dCode retains ownership of the "7x7 Sudoku Solver" source code. Except explicit open source licence (indicated Creative Commons / free), the "7x7 Sudoku Solver" algorithm, the applet or snippet (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, breaker, translator), or the "7x7 Sudoku Solver" functions (calculate, convert, solve, decrypt / encrypt, decipher / cipher, decode / encode, translate) written in any informatic language (Python, Java, PHP, C#, Javascript, Matlab, etc.) and all data download, script, or API access for "7x7 Sudoku Solver" are not public, same for offline use on PC, mobile, tablet, iPhone or Android app!
Reminder : dCode is free to use.

## Cite dCode

The copy-paste of the page "7x7 Sudoku Solver" or any of its results, is allowed (even for commercial purposes) as long as you credit dCode!
Exporting results as a .csv or .txt file is free by clicking on the export icon
Cite as source (bibliography):
7x7 Sudoku Solver on dCode.fr [online website], retrieved on 2024-07-18, https://www.dcode.fr/sudoku-7x7-solver

## Need Help ?

Please, check our dCode Discord community for help requests!
NB: for encrypted messages, test our automatic cipher identifier!