Logic Masters Deutschland e.V.

Chaos Construction: X-Sums and Lines

(Eingestellt am 2. April 2022, 19:42 Uhr von KNT)

Place the numbers from 1 to 9 exactly once in every row, column, and region. Each region is orthogonally connected and must be located by the solver.

A number outside the grid indicates the sum of the first N numbers from the direction of the clue, where N is the number closest to the clue. The first N numbers are also all in the same region, and the N+1th number is in a different region.

A number N in a colored cell indicates that there must be a contiguous line of exactly N cells that contain the colored cell all within the same region. The line may be horizontal, vertical, or possibly both.

SudokuPad

penpa+

Lösungscode: Row 6 followed by Row 7

Zuletzt geändert am 11. Juni 2024, 21:33 Uhr

Gelöst von marcmees, Siebuhh, Jesper, twobear, peterkp, Steven R, polar, jkuo7, Elliott810, thefallenrat, Franjo, Christounet, rmn, askel083, abed hawila, SirSchmoopy, DVFrank, ___, kublai, Ore, farodin64, ... ONeill, Euclid, soroush, codewizard, mattnburris, dogfarts, zuzanina, ibag, widjo, dennischen, Feadoor, laky, Saskia, mang0, SXH, Nick Smirnov, clover, glum_hippo, The Book Wyrm, steeto, EmanueleFWM
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Kommentare

am 6. November 2022, 15:05 Uhr von PrimeWeasel
80% of the grid took me 24 minutes, the last 20% took me 30 minutes. Albeit fun, the last few steps felt considerably harder than the rest.

am 25. Oktober 2022, 22:02 Uhr von StephenR
What a beauty, thanks. I nearly broke it, as I am wont to do, but managed to salvage it.

Zuletzt geändert am 9. Juli 2022, 04:58 Uhr

am 14. Juni 2022, 02:11 Uhr von Montinox
Question: can there ever be a line of size 1?

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Hi Montinox, I apologize for the late reply, but yes- there can be a line of size 1.

am 3. April 2022, 18:36 Uhr von Christounet
Great puzzle with a nice use of an original border constraint ! Thanks for sharing.

am 3. April 2022, 11:22 Uhr von thefallenrat
Great puzzle!

am 3. April 2022, 10:32 Uhr von Elliott810
Beautiful construction with a strictly logical solving path from start to finish! Pretty impressive! Thanks:)

am 2. April 2022, 21:56 Uhr von twobear
Very nice and smooth puzzle. Thank you!

Zuletzt geändert am 2. April 2022, 21:42 Uhr

am 2. April 2022, 21:38 Uhr von thefallenrat
Rules clarification please:
"Example, if R8C5 was a 3, then it would be valid for R8C3, R8C4, and R8C5 to be in a region that excludes R8C2 and R8C6"

Does that also excludes R7C5 and R9C5 as well?

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As long as, in this example, there is a continuous strip of exactly 3 cells in a line in one of the two orthogonal directions, the other direction is not bound to any restriction.

Schwierigkeit:4
Bewertung:98 %
Gelöst:83 mal
Beobachtet:7 mal
ID:0009JR

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Lösungscode:

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