Exploded Compass Sudoku
(Published on 28. February 2021, 09:00 by stephane.bura)
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Every row, column and irregular region must contain the digits from 0 to 8. If there is an arrow in a cell, the digit in that cell equals the total number of cells belonging to the region the arrow comes from that are in the direction of the arrow. For instance, if r1c2 was 5, as it contains an arrow pointing to the left, this would mean that the region containing r1c3 would have 5 cells that are to the left of r1c3. All the possible arrows are given. Enjoy! |
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Solution code: Column 5, column 6
Comments
on 21. November 2024, 19:56 by stephane.bura
Updated link. Thanks damasosos92!
on 21. November 2024, 19:54 by damasosos92
Here is a sudokupad link to the puzzle because the original link doesn't work anymore: https://sudokupad.app/b7uvgrsfup
Very hard puzzle, anyway, I think it's not easier than the other puzzles in the series, but lovely logic. Had to use a lot of techniques to unfold the regions construction this time. Wild use of the negative constraint.
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Thanks!
I'm curious, do you know why there is a sudden interest for this old puzzle?
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Just some enthusiast solvers solving together your very nice puzzles :D I'm on a quest to complete all your compasses, very few remaining.
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I'm honored :)
on 11. August 2021, 15:49 by Piatato
I at several points felt quite uncertain about my deductions, but I came stumbling through in the end! Very nice, but not particularly easy!
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Congrats! :)
Let's say it's easier than the other puzzles in this series ;)
on 1. March 2021, 00:18 by polar
Always happy to see a new compass puzzle! :)
on 28. February 2021, 22:16 by marcmees
the path seems obvious but is never certain. thanks.
on 28. February 2021, 19:13 by Arashdeep Singh
Always enjoy solving your compass puzzles. Thanks for constructing another great puzzle. :D
on 28. February 2021, 17:49 by henrypijames
The entry was not easy to find (specifically, not the first but the second step of it, making the first step seem like a red herring initially) - but after that I more or less guessed my way to the solution at some speed (without even needing the negative constraint), for the long strings of arrows are a bit conspicuous...
on 28. February 2021, 16:49 by Jesper
Thanks for another fun and challenging exploded compass!
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Glad you liked it, Jesper :)
on 28. February 2021, 14:21 by henrypijames
The Arrow King returns!
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:)
