Logic Masters Deutschland e.V.

Doubler Chaos (Chaos Construction)

(Published on 19. November 2024, 23:39 by Mad-Tyas)

Rules:

Chaos Construction: The grid has to be devided into nine regions of orthogonally connected cells. Each row, column and region has to contain the digits 1-9 once each.

Doubler: There are nine Doubler cells in the grid, exactly one in each row, column and region. The Doublers cells have to contain a complete set of the digits 1-9. Additionally, each Doubler cell has to be in the same region as the cell RxCx with x being the digit in the Doubler cell.

Killer: In cages marked with a black dashed line digits must not repeat and values have to add up to the total given in the top-left corner of a cage. The value of Doubler cells is twice the digit in that cell.

Have fun solving!

Sudoku on:
SudokuPad

Solution code: Digits in row 5 from left to right with (+) in between for region borders.


Solved by Ambrose, Steven R, OutOfMyMindBRB, bansalsaab, h5663454, steeto, Tom-dz, SeveNateNine, Kallor, han233ing, dodo, Paletron, Piff, Snookerfan, DaleVandermeer, marcmees, erml, TripleABattery, ... Ton, Clara123, Mutx, Faye_Creature, lpq29743, BloodbuzzCorio, toshii, Christounet, arauwer, piyush, Al Fresco, shteev, qoala, jsalomon, CareBaer, JDP678, shangchenxi123, Kavman15, by81996672, ch1983
Full list

Comments

on 15. December 2024, 19:40 by Christounet
Great ! Bottom left resolution was indeed much harder than the rest of the puzzle, but the deduction to unlock was nice and subtle. Thanks :)

on 3. December 2024, 13:21 by Tacosian
Loved it!

on 27. November 2024, 05:02 by CitrusGremlin
Took me the better part of the day, I normally don't touch 5 star puzzles. But something about this one hooked me from the moment I placed my first correct doubler and went "That can't be right...." Astonishing logic from start to end.

on 26. November 2024, 18:48 by Gorzantinopulus
Great puzzle! 248 minutes for me:)

on 24. November 2024, 22:33 by Mad-Tyas
Thank you very much for all the kind comments! I'm very happy that you all had a satisfying experience with my first dive into creating Chaos Construction :)

on 23. November 2024, 11:29 by Bootenks
A delightful puzzle! I'd rate it more of a 3 in terms of difficulty, possibly edging to a 4 due to the tricky lower-left section. The strong restrictions provided clear guidance throughout the solve.

on 23. November 2024, 09:50 by Titus Adduxas
Phew! That was a brilliant puzzle! I struggled a lot with the bottom left section for ages until I finally asked the right question, but once I did it all clicked into place. I’m sure we’ll see this one on CTC before long.

on 23. November 2024, 06:54 by femto113
Wow what a journey. Seems like there's some seriously advanced sudoku logic needed because at a couple points where I had to resort to bifurcating but overall some very compelling logic.

on 22. November 2024, 12:26 by dawg
Incredible puzzle. First 5-star I ever attempted and it couldn't be better. Thanks for the puzzle!

on 22. November 2024, 06:38 by Elker
Fantastic puzzle. Was real challenging throughout.

on 21. November 2024, 20:56 by jwsinclair
It feels odd to think that a puzzle can be *underrated* at 95%, but I think that's the case here. Absolutely loved it.

on 21. November 2024, 03:54 by Calvinball
Well this one is going straight into the favorite list. Just blown away right now.

on 20. November 2024, 22:30 by Shape
Amazing puzzle!

on 20. November 2024, 21:46 by alefenu
it was very very cute

on 20. November 2024, 19:48 by askaksaksask
The logic that flows from the restriction on the positive diagonal...just...incredible!

on 20. November 2024, 17:46 by Myxo
Brilliant! :)

on 20. November 2024, 17:19 by Franjo
This amazing CC with symmetrical arrangement of cages left me - lost for words. Thank you so much for sharing this incredible and wonderful puzzle.

on 20. November 2024, 13:26 by marcmees
Excellent puzzle. thanks

on 20. November 2024, 12:08 by Snookerfan
Another absolute banger! Thank you

on 20. November 2024, 04:58 by bansalsaab
Amazing new variation on cc

on 20. November 2024, 02:50 by OutOfMyMindBRB
Beautifully constructed with elegant logic from start to finish, Mad, Tyas, mad i tell you :-)

on 20. November 2024, 01:40 by Steven R
Fantastic puzzle!

Difficulty:5
Rating:96 %
Solved:116 times
Observed:7 times
ID:000KTK

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