Logic Masters Deutschland e.V.

Cage Play 5: ZipKiller

(Published on 4. May 2025, 14:27 by HalfBakedLunatic)

Ramping the difficulty level back up - to the max! You should quickly appreciate the multi-level "self-referential" logic that will be needed to solve this puzzle. Just keep working out the min/max potential totals for each cage and you'll eventually get there.

Hint: the initial candidates for R6C4 can be quickly determined from the minimum cage totals in R6C2 and R7C4. That will set the stage for the rest of the solution path...

The Rules:
• Normal Sudoku Rules Apply
• Digits in cages sum to the number in the corner, if given. Digits do not repeat within cages
• Cages equal distance from the center cage on a zipper line must sum to the center cage sum




Solve Online here (right-click and open in new tab):
ZipKiller (Cracking The Cryptic)

Leave a comment and let me know how you like it!

Puzzle by David Workman (aka "HalfBakedLunatic")

Solution code: Row 4

Last changed on on 20. May 2025, 02:58

Solved by SPring, Briks, Bankey, SKORP17, dodo, Danica, Clara123, ananth, MonsieurTRISTE, Qodec, Snookerfan, Pierr3, bansalsaab, tangobunni, Llamaths, lianarox, Elliott810, Criptonight, BobAndWeave, parkinson, Exigus, mbrandtwls, trashghost, Killer-Ly , Da Letter El, mse326, Possum, Chishiri, longhorned, 0123coolkid, abed hawila, annnz, sasheo, Isael, Elainejyl, Chipmunk, shteev
Full list

Comments

on 22. June 2025, 16:56 by shteev
Those deep red zipper lines make pencil marks hard to see

on 5. May 2025, 19:55 by mbrandtwls
Great concept and incredible difficulty. Layers and layers of logic, thank you!

Last changed on 5. May 2025, 14:24

on 5. May 2025, 14:22 by BobAndWeave
Another beautiful puzzle, 5+ difficulty and took a long time, yet it kept me continously looking for the next move.

on 5. May 2025, 02:16 by HalfBakedLunatic
Changing solution code

Last changed on 5. May 2025, 02:46

on 4. May 2025, 19:55 by Snookerfan
Beautiful puzzle! For me it was 3 stars for difficulty. The solution code is a bit vague: the 4 initial candidates for R6C4 could be in any order. Thank you

-- There are some people who don't actually solve the puzzles, they are just extracting the solution from the link (and unfortunately these particular people tend to leave bad ratings simply to annoy puzzle authors) - I was trying to see if I could weed out the trolls, but I guess not. I have updated the code to just Row 4.

Last changed on 4. May 2025, 19:10

on 4. May 2025, 19:08 by MonsieurTRISTE
Good puzzle. Definitely bad solution code.

on 4. May 2025, 17:46 by Bankey
Fun puzzle. Thanks, @ HalfBakedLunatic :).

on 4. May 2025, 17:26 by Briks
No hint needed, difficulty (3-)4 stars I think.

Difficulty:4
Rating:94 %
Solved:37 times
Observed:5 times
ID:000N77

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Solution code:

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