Logic Masters Deutschland e.V.

Peek-a-Dot

(Published on 12. December 2025, 19:09 by maxlamenace)

This is my first experiment with Dynamic Fog! I used one of the most classic constraints (Kropki Dots) and challenged myself to reveal only one cell at a time. The result has some interesting logic, so I’m sharing it!

Rules:

  • Normal sudoku rules apply.
  • Dynamic Fog: The grid is partially covered in fog. Correctly placed digits will clear the fog from that cell and may also clear fog from other cells elsewhere in the grid. No guessing is required.
  • Kropki Dots: Digits connected by a white dot must be consecutive. Digits connected by a black dot must be in a 1:2 ratio. Not all possible dots are necessarily given.

Play in SudokuPad

Solution code: Row 5 (9 digits)


Solved by jalebc, roundnroll, SudokuFan, SKORP17, Titus23, Rearden, sparkymanu, dzamie, Ragna, BorisTheSnake, tricksy1224, Jodelbanane, asynchronous, Zyrafika, Testpilot Pirx, connnor, snowbaby, ... Uhu, schnitzl, maniacaljackal, scushuaishuai, abihummel, H.I. McDunnough, hsimah, Thaivd, timww572, Topalai, pepe74287, tim_vermeulen, MattJones, Sarhik, Nosferatu, zrbakhtiar, ludvigr04
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Comments

on 14. December 2025, 14:55 by 91loves
This was very entertaining and I loved the logic!

on 13. December 2025, 18:19 by fishsaltyak
Thanks :)

on 13. December 2025, 13:30 by marajade
I always enjoy dynamic fog, and I love what you did with it here! Very fun, thanks for sharing!

on 13. December 2025, 00:37 by Ragna
Fun puzzle! Thank you. :-)

on 12. December 2025, 22:26 by sparkymanu
It was quite challenging, but in a fun way! Thank you so much for sharing :)

Difficulty:2
Rating:88 %
Solved:116 times
Observed:0 times
ID:000QJ4

Enter solution

Solution code:

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