Logic Masters Deutschland e.V.

Productivity Killer (BYOK+)

(Published on 18. October 2023, 02:45 by SeveNateNine)

Sudoku: Place the digits 1-9 once each in every row, column, and box.

Cages: A cage is a set of orthogonally connected cells which do not contain repeated digits. Cages may not overlap each other. The sum of digits in a given cage is equal to the product of all individual side-lengths of that cage. This does not necessarily equal the area of that cage.

Circles/Squares: Circles appear in cages and count the total number of cells in that cage. Squares indicate that a cell is not in any cage. All possible Circles and Squares are given.

Solve on F-Puzzles

Solve on CTC

Solution code: Digits in box 9 (bottom right), left to right, top to bottom.

Last changed on on 23. November 2023, 04:10

Solved by MonsieurTRISTE, keaizhu, TrollErgoSum, Pepitapopo, LeaVulpina, TimeTravelingMoose, Taratang, mnasti2, zzw, Fool on Hill, XeonRisq, Paletron, Myxo, Niverio
Full list

Comments

on 23. June 2024, 23:48 by Niverio
Very original ruleset! Surprising that such a grid exists, and am glad that you found it! Hard but fair all the way.

on 31. January 2024, 00:22 by Myxo
That was awesome! Really weird ruleset, leading to a lot of fun and elegant deductions. Stunning construction!

Last changed on 26. January 2024, 21:56

on 26. January 2024, 21:56 by XeonRisq
Very creative idea, clever placement of clues, fun to figure out all the implications of building the cages. Quite hard at times, but rewarding when crossing the finish line..

on 25. January 2024, 11:47 by Fool on Hill
That was a real challenge, and fun. I got a correct deduction, but missed a possibility and thought I'd broken it, so left it on my "when I have time" list. Glad I came back to it - amazing puzzle.

on 8. December 2023, 17:47 by zzw
Amazing puzzle! Very simple and elegant ruleset. It was pretty hard to wrap my head around all the implications of it, but the fact that it all resolves is really impressive. But most importantly, it was fun!

on 23. November 2023, 04:05 by SeveNateNine
Clarified rules and added solution check to CTC link.

on 21. October 2023, 00:30 by LeaVulpina
I was on the edge of my metaphorical seat the whole way through, especially after I broke it at one point; thankfully, I decided to empty the grid and hope that I'd built the cages correctly. This puzzle was goooorgeous.

on 19. October 2023, 21:19 by TrollErgoSum
That was a trip, some really beautiful logic with the cage side lengths.

Last changed on 19. October 2023, 17:45

on 19. October 2023, 17:20 by MonsieurTRISTE
Worth solving!
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Thank you, and congrats on the solve!

Difficulty:5
Rating:100 %
Solved:14 times
Observed:8 times
ID:000FJ8

Puzzle combination Variant combination New Arithmetic puzzle

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Solution code:

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