Logic Masters Deutschland e.V.

Cookie Conundrum (Double Arrow Loop)

(Published on 31. December 2025, 20:33 by Chefofdeath)

Cookie Conundrum

This year I took part in the CTC discord server’s secret Santa event. Funnily enough, when I got my person I’d be making puzzles for, it was none other than PjotrV. PjotrV releases puzzles here, so you’re all likely familiar with him. However, he also runs a YouTube Channel where he posts solve videos of puzzles for his upcoming book (slotted to come out in PDF first later in 2026). On his channel he also streams. He streams a lot of logic based video games currently and he’ll also do the occasional sudoku solving or sudoku setting stream. I made PjotrV a pack of nine puzzles for Christmas (he’s solved the first seven of them here) and this is one of those puzzles, with his blessing of course. I used a non-themed version as this puzzle was deeply personalized for PjotrV and it seemed inappropriate to use the decorated version. Hope you enjoy, and please check out his channel and puzzles. I know it would make him happy.

Rules:

Normal Sudoku rules apply.

Loop: Draw a loop that moves orthogonally through the center of some cells. The loop must visit all circles and all squares. The loop may not touch itself orthogonally but may touch itself diagonally.

Double Arrows: Digits between two circle cells on the loop must sum to the same total as those circle cells. This does not apply for squares.

CTC link

Solution code: Row 5

Last changed on on 2. January 2026, 05:14

Solved by SKORP17, gdc, PjotrV, damo_89, Saltensity, Nagesh, tuturitu, QuiltyAsCharged, arauwer, smckinley, LuridGraph, Justalilguy
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Comments

today, 02:20 by Justalilguy
Delightful puzzle!

on 3. January 2026, 11:20 by damo_89
This was a very nice puzzle, with a ruleset that was new to me, and really not that hard. Do give it some love.

on 1. January 2026, 10:56 by PjotrV
Thank you very much Santa :D
Lovely puzzle!

on 31. December 2025, 20:36 by Chefofdeath
The href wasn’t working. So here’s a link to PjotrV’s main page for YouTube :) Show him some love! https://youtube.com/@greenpuzzler?si=N0kYZOplIY2NJbaF

Difficulty:3
Rating:N/A
Solved:12 times
Observed:0 times
ID:000QSQ

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