Logic Masters Deutschland e.V.

a night in the city

(Published on 27. October 2025, 00:49 by aqjhs)

So ChinStrap introduced me to the concept of slowscrapers and I had to take them to the dög.

  • Normal sudoku rules apply.
  • Doppel-Dög loop:
    • Draw an orthogonal non-branching closed loop that doesn't cross or touch itself, not even diagonally.
    • The loop "starts" at the cell marked with the dog and is considered to be oriented in the direction indicated by the arrow (i.e. r7c7 and r7c8 are in the loop).
    • A cell on the loop with a digit D will have a value equal to the digit D steps away along the loop in the orientation given by the arrow.
    • Cells not on the loop will have a value equal to the digit in them.
  • Adjacent digits (not values) along the loop must have a difference of at least 5.
  • Clues outside the grid are Slowscraper (slow skyscraper) clues: a number outside the grid indicates the number of values seen in that direction, for that effect, values block any strictly lower values from being seen, but they don't block equal or higher values.
  • Cells marked with a circle are not part of the loop and have a digit equal to the count of the, up to 8, neighboring loop cells.
  • Cells joined by a ball have the same value.

Online in Sudokupad

More Doppel-Dögs:

Solution code: Values on column 5, top to bottom.

Last changed on -

Solved by ChinStrap, tuturitu, Piff, zeniko, bansalsaab, Ste1729, steeto, kodra22, ralphwaldo1, han233ing, Azumagao, nazdalf, Sotehr, mezeji, Isael, TrollErgoSum, FlowJo, zhan, Norkas, lmdemasi, kdwji, Nell Gwyn, godoffours, hepcecob, mahdiosm, Fusce
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Comments

on 16. November 2025, 17:16 by hepcecob
That was some mighty good logic. Enjoyed it very much.

on 1. November 2025, 08:25 by Norkas
Very good fun. Would walk your dog again.

on 29. October 2025, 19:59 by mezeji
great puzzle
took me almost 5 hours to solve.
it went smooth

on 28. October 2025, 07:17 by ralphwaldo1
Two nights for me. Tough but rewarding.

on 27. October 2025, 00:51 by ChinStrap
Thank you aqjhs for taking my idea that I still haven't done anything with and making such a gorgeous puzzle with it.

Difficulty:5
Rating:95 %
Solved:26 times
Observed:1 times
ID:000NXY

Variant combination New Path puzzle

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