Logic Masters Deutschland e.V.

Chaos Construction: Gaps

(Published on 29. March 2022, 07:47 by KNT)

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

Both cells that an arrow touches belong to the same region, and the cell directly in front of an arrow is not in that region. The number on the tail of an arrow indicates how many cells (in the indicated direction) in different regions must be travelled across until another cell belonging to the same region is reached.

Numbers separated by a white dot are part of the same region, and are consecutive.

SudokuPad

penpa+

Solution code: Row 1 followed by Row 9

Last changed on on 5. June 2024, 20:20

Solved by Jesper, MagnusJosefsson, Franjo, Elliott810, Steven R, efnenu, marcmees, SenatorGronk, Lizzy01, dunder, ___, Statistica, Dandelo, soroush, zeecomoon, rmn, AnnaTh, Christounet, tome_coelho, broch, ... Across, Bellsita, P12345, Nick Smirnov, clover, EmanueleM, Crusader175, SeveNateNine, zzw, chien2000gl, toxic_rabbit, tallcat, steeto, EmanueleFWM, itweb, vfig, isajo4002, Malrog, Canyun
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Comments

on 1. May 2023, 13:04 by ibag
Nice puzzle! ;-)

on 4. March 2023, 05:40 by wooferzfg
That was fun and not very hard, although the irregular sudoku took longer than the region building for me

on 10. August 2022, 13:57 by Piatato
Very smooth and nice!

on 30. June 2022, 15:53 by PrimeWeasel
An easy 4, or a hard 3, let's see about the next one :)

on 18. April 2022, 18:59 by Krokant
This is indeed quite approachable. And fun, too. :)

on 5. April 2022, 11:18 by Christounet
Interesting puzzle with a nice constraint once you understand it properly. I first tried to build the regions considering that the N+1th cell could be outside the grid, therefore possibly not in the same region as the arrow. I quickly realized it was just impossible and you had to have a N+1th cell IN the grid ! Then it became quite easier to solve. Good one !

on 29. March 2022, 09:28 by Jesper
Good puzzle! I found the construction part quite straightforward, but it still has some really nice logic in it.

on 29. March 2022, 07:49 by KNT
Solution code edited.

Difficulty:4
Rating:93 %
Solved:102 times
Observed:9 times
ID:0009IA

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