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.
7x7 Sudoku Solver - dCode
Tag(s) : Number Games
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7x7 Sudoku Solver
Solve a 7x7 irregular sudoku grid
Answers to Questions (FAQ)
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
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Cite as source (bibliography):
7x7 Sudoku Solver on dCode.fr [online website], retrieved on 2024-10-22,
