Tool/solver to resolve irregular sudoku (any size), ie with a NxN grid and non-square blocks, the rule of rows and columns remain unchanged.
Irregular NxN Sudoku Solver - dCode
Tag(s) : Number Games
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Irregular NxN Sudoku Solver
Solve a irregular sudoku grid
Answers to Questions (FAQ)
How to fill the Jigsaw Sudoku grid?
Irregular Sudoku NxN (called Jigsaw or Chaos) is identical to a classic sudoku, except for the blocks that are no longer regular square elements, but polyominoes that form a kind of jigsaw puzzle.
Indicates cells values one by one (it is also possible to make a copy-paste with space as empty cell) as in a classic sudoku.
Only letters or digits are allowed.
Blocks of 9 cells can be selected within predefined examples under the grid or indicated manually by clicking on borders.
Example: A 9x9 grid (copy/paste) forms nonominos 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 | ␣ |
For larger grids, the solver only accepts one character per cell, so use letters.
Example: Write A for 10, B for 11 etc.
How does the step by step works?
Software solves the Sudoku, similarly to an human, and display each step of its progress to understand without explaining.
Source code
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Cite as source (bibliography):
Irregular NxN Sudoku Solver on dCode.fr [online website], retrieved on 2022-10-05,
