Logic Masters Deutschland e.V.

Border Vision

(Eingestellt am 15. April 2022, 03:53 Uhr von wooferzfg)

This Chaos Construction puzzle was created by Jakhob and wooferzfg.


Normal Irregular Sudoku rules apply, but the regions must be determined by the solver. All regions are orthogonally connected groups of 9 cells.

A digit in a cell with arrows indicates the number of region borders between that cell and the edge of the grid, totaled across all the directions given by the arrows. The edge of the grid does not count towards the total.

4x4 Example Puzzle
Puzzle Links

Play on CTC

Play on f-puzzles

Lösungscode: Row 3 followed by Row 8

Gelöst von Jakhob, jkuo7, marcmees, thefallenrat, Jesper, Steven R, Christounet, robals, MagnusJosefsson, Lizzy01, Elliptical, Beanie, henrypijames, wildbush7, zlotnleo, kmoter, polar, ns08, OGRussHood, bernhard, cdwg2000, Mody, Franjo, peacherwu2, KNT
Komplette Liste


am 12. September 2022, 20:31 Uhr von KNT
A lot of fun, and also fairly challenging

am 28. Juli 2022, 17:30 Uhr von peacherwu2
Unlike some comment below, I find the region deduction part very interesting!

am 18. April 2022, 13:34 Uhr von henrypijames
Starts easy (almost too easy), then becomes very hard.

am 16. April 2022, 19:01 Uhr von robals
This was hard but very very very entertaining. Loved it!

Zuletzt geändert am 16. April 2022, 10:10 Uhr

am 16. April 2022, 09:43 Uhr von Christounet
Very nice construction puzzle ! Thanks.

(The CTC version had some display problems on my screen, arrows where a little out of bounds).

Reply from wooferzfg: This puzzle relies on some newer SudokuPad functionality to display the arrows in the correct position, so using the web version in Chrome on a desktop computer is recommended. Sorry about any inconvenience!

am 15. April 2022, 17:26 Uhr von Jesper
Very nice, thanks.

am 15. April 2022, 17:11 Uhr von thefallenrat
Nice logical path as always!

am 15. April 2022, 11:00 Uhr von marcmees
smooth solve. thanks

Bewertung:97 %
Gelöst:25 mal
Beobachtet:0 mal

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