Logic Masters Deutschland e.V.

Exploded Sum Compass Sudoku

(Eingestellt am 31. Januar 2022, 21:00 Uhr von stephane.bura)

Every row, column and compass region must contain the digits from 1 to 9.
You must draw the nine contiguous compass regions.

If there is at least one arrow 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.
If several arrows come from the same region, the number of cells must be the same for these arrows and it’s only counted once.

If there are several arrows in a cell, one or more can contribute for a value of 0.


For instance, from the example:

  • Red 8: there are 8 red cells above the up arrow.
  • Red 3: there are 2 green cells to the left of the arrow on the right and 1 red cell below the arrow at the top. 2 + 1 = 3.
  • Orange 2: 1 from green + 1 from orange + 0 from grey.
  • Blue 2: both arrows come from the same region (orange), so they should be the same (2 above and 2 to the right) and they are only counted once.
  • Blue 8: two arrows from blue of value 6 counted once + one arrow from orange of value 2.


All the possible arrows and combinations of arrows are given.

This means, for instance, that if there were no up arrows in the green cells marked with an X in the example, these cells couldn’t contain a 5 since there are 5 green cells above this row.

Enjoy!

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Lösungscode: Column 4, column 6

Zuletzt geändert am 1. Februar 2022, 20:24 Uhr

Gelöst von polar, Jesper, MagnusJosefsson, marcmees, Piatato
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Kommentare

Zuletzt geändert am 6. März 2022, 13:35 Uhr

am 6. März 2022, 13:29 Uhr von Piatato
There are very few things that feel better than finishing one of your fierce Compass Sudokus. I have loved every puzzle in this series, and this was yet another stunning masterpiece!

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Thanks Piatato :)

Zuletzt geändert am 3. Februar 2022, 01:41 Uhr

am 3. Februar 2022, 01:31 Uhr von henrypijames
That really looks like the next level of mental DoS. I shudder to think how many mistakes I'm gonna make solving this one ...

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:D
I believe in you.

am 1. Februar 2022, 20:24 Uhr von stephane.bura
Added Chaos Construction tag.

Zuletzt geändert am 1. Februar 2022, 19:32 Uhr

am 1. Februar 2022, 17:49 Uhr von marcmees
wow. nice return of the greatest compass chaos setter. Thanks for the fun.

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*blush*

Zuletzt geändert am 1. Februar 2022, 13:27 Uhr

am 1. Februar 2022, 13:13 Uhr von MagnusJosefsson
Great puzzle! Carries on the delightful logic of the previous entries in the series but adds some cool new twists.

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Thanks Magnus :)

Zuletzt geändert am 1. Februar 2022, 11:44 Uhr

am 1. Februar 2022, 11:41 Uhr von Jesper
Wonderful! Really happy to see this series continuing :)

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I was goaded by Zetamath's solves (on YouTube) of two of my previous puzzles in this series.
I'm glad I can always count on the faithful to try my crazy puzzles. Thanks :)

Zuletzt geändert am 31. Januar 2022, 23:26 Uhr

am 31. Januar 2022, 23:14 Uhr von polar
Delighted to see a puzzle from this series and it didn't disappoint! I enjoyed every minute of it - thanks :)

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Thanks polar!
I am myself delighted that you liked it :)

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Gelöst:5 mal
Beobachtet:7 mal
ID:0008ZU

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