Sum Compass Sudoku
(Published on 31. December 2020, 20:00 by stephane.bura)
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Every row, column and compass region must contain the digits from 1 to 9. If there is one or two arrows pointing to a cell, that cell contains the sum of the numbers of cells belonging to the regions where the arrows come from, in the respective directions of the arrows. For instance, r3c6 is 9 and has two arrows pointing to it. This means that if you add the number of cells from the region containing r3c7 to its left to the number of cells from the region containing r4c6 above it, you get 9. Enjoy! |
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Solution code: Columns 1, 2 and 3 (27 digits)
Comments
on 17. September 2024, 20:18 by damasosos92
Wow. One of the best puzzles I've solved this year.
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Thank you, damasosos92!
If you like this concept, you can have a look at the other puzzles in this series.
My favorite is 000520 :)
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Yeah I'm solving the entire series! ^^ I already solved 000520 some months ago, it was the first Compass I solved, and it was beautiful.
on 5. July 2024, 03:23 by Las4one
CTC: https://sudokupad.app/36p3xku9xq
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Thanks! :)
on 19. November 2023, 14:20 by Myxo
Lovely puzzle! Very impressive construction.
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Thanks, Myxo :)
on 23. December 2022, 18:11 by Agent
More beautiful logic!
on 14. November 2022, 00:38 by Christounet
I'm on a roll now with this serie ! Just another stunning variation of the ruleset. Super fun ! Thanks again.
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I'm so glad you appreciate this series.
Thanks for your commitment and congratulations!
on 22. July 2021, 02:25 by Piatato
This was extremely challenging for me, but I’m glad that I kept staring until I finally started understanding how to think. :-) Incredible puzzle!
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Thanks!
I'm glad that you liked the challenge :)
on 26. January 2021, 11:55 by henrypijames
I now really want to see the excitable Simon take on this one on the CTC and shower it with superlatives that this puzzle absolutely deserves. ;)
on 25. January 2021, 21:01 by henrypijames
My god, this one is mindbogglingly clever - making me gasp several times, which no other puzzle has ever done.
I was reminded of Richard's praise of Stephane as the most creative author on this site - this puzzle surely demonstrates that in spades.
on 24. January 2021, 22:08 by SudokuExplorer
Beautiful as always! A very enjoyable addition to this stunning series :-)
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Thanks :)
on 7. January 2021, 11:19 by Yohann
Finally solved it, after breaking it a shameful amount of times. Thanks for the puzzle Stéphane!
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Congrats Yohann!
I have to work hard to challenge you ;)
on 3. January 2021, 14:45 by marcmees
If ever someone should be held responsible for eventual braindamage ... it is you, Stephane Bura. :-)
It was a wonderful journey along the solution path. Thanks
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Ha! If that happens, I hope it'd still be enjoyable :)
Thanks!
on 2. January 2021, 14:14 by Arashdeep Singh
Great puzzle. Loved it.
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Thanks :)
on 1. January 2021, 18:14 by polar
Really enjoying this series! Great puzzle thanks.
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Thanks polar :)
