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SudokuWiki.org
Strategies for Popular Number Puzzles
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SudokuWiki.org
Strategies for Popular Number Puzzles
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| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| 9 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| 8 | 9 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| 7 | 8 | 9 | 1 | 2 | 3 | 4 | 5 | 6 |
| 6 | 7 | 8 | 9 | 1 | 2 | 3 | 4 | 5 |
| 5 | 6 | 7 | 8 | 9 | 1 | 2 | 3 | 4 |
| 4 | 5 | 6 | 7 | 8 | 9 | 1 | 2 | 3 |
| 3 | 4 | 5 | 6 | 7 | 8 | 9 | 1 | 2 |
| 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 1 |
| Stripy Sudoku Solver |
Solve Path now excludes unchecked strategies ↓
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| Enter clues or solutions |
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Puzzle Rules
Enter the numbers 1 to 9 uniquely in every row,
column, box and each 'stripe'. Note that the stipes
wrap around and all but one are in two parts.
Pick an example from the list and use [Take Step] to click through the steps of the solver so see how each puzzle solves. 
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Note: All Chaining strategies now permit cycling alternatives, where found read more
Errors? [CRTL]+[F5] to clear and download the latest script files |
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I have optimised my board generator and one of the benefits is much quicker generation of puzzles with extra constraints like Stripy. From the initial batch I've selected four of each grade. As a tribute to the example sent to me by a user (who got it from a geo-location puzzle) that remains the first in the example list.
Stripy is the same puzzle as normal Sudoku but with an extra constraint. In a similar way to the rows, columns an boxes, the stripes must also be uniquely 1 to 9. All Sudoku strategies continue to apply - except the ones that rely on the deadly pattern used by Uniqueness strategies.
All feedback, comments, arguments, bug reports and strategy ideas are welcome. There is a new FEEDBACK form with a column displaying comments and questions. Many thanks to all the people who have done so and helped improve this solver.
Use the "Import a Sudoku" button or type in a Sudoku puzzle in the small board.
You can also pick examples from the list above. Click on
Take Step to step through the solution.
Unknown squares are filled with 'candidates' - possible solutions.
Any cells that are reduced to one possible candidate are solved.
| All Solutions to a Stripy Sudoku | ||
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| By Andrew Stuart and Rui Gonçalves, Syndicated Puzzles | ||
| Email your puzzle to a friend | ||
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Copy and paste the contents of the green box into your email program and send it off. The links contain the puzzle which will load when your friend visits the Sudoku Solver. |
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