Compass Sudoku
(Published on 16. July 2020, 14:54 by stephane.bura)
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Normal Sudoku rules apply. Split the grid into orthogonally connected regions, one for each compass (a cell containing a cross). The digit in the cell above a compass conveys information about the number of cells within the region that lie above the compass, regardless of horizontal position. The other digits work analogously for cells to the right, below and to the left of the compass.
The digit in the cell containing the compass has no additional meaning. f-puzzles link and Penpa+ link to play this puzzle online. |
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Note: This is a re-upload as @stefliew noticed that there was an ambiguity in the previous version and helped me fix it. Enjoy!
Solution code: The digits of the region containing the top right corner cell of the grid, from left to right, top to bottom.
Comments
on 4. February 2024, 18:58 by damasosos92
Extraordinary stuff!
on 28. December 2022, 18:14 by peacherwu2
Brilliant puzzle! One of a kind!
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Thanks :)
on 17. March 2022, 21:12 by Krokant
Really wonderful puzzle. Fun in all directions. :)
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Thanks :)
on 4. January 2021, 15:18 by marcmees
WOW ... very nice compass series, not for disoriented people.
on 9. November 2020, 17:47 by SudokuExplorer
This puzzle deserves more solves. Absolutely worth solving!
on 8. November 2020, 16:49 by SudokuExplorer
I unfortunately still don't understand the rules. Can someone kindly explain how the numbers 2, 4, 3 and 7 around the compass in the orange region work?
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Sure:
There are 2 cells in the region above the 9 (2 and 7).
There are 4 cells in the region to the right of the 9 (7, 4, 6 and 5).
There are 3 cells in the region below the 9 (3, 6 and 5).
There are no cells in the region to the left of the 9, indicated by the 7.
Furthermore, because of the circle, all the digits in this region are different.
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You're an absolute star, thank you! I can't wait to try it! :-)
on 8. November 2020, 08:29 by cdwg2000
It’s a great problem, but it was ignored by most people. It’s a pity!
on 25. September 2020, 16:11 by stephane.bura
Added Penpa+ link
on 25. July 2020, 14:40 by stephane.bura
Corrected mistake in the example.
on 18. July 2020, 11:19 by Soumil99
Great puzzle!
on 16. July 2020, 14:56 by stefliew
Nice puzzle =)
