Normal irregular sudoku rules apply. (Every row, column and 9-cell region must contain the digits 1-9 once each)
The regions must be determined by the solver. All regions consist of 9 orthogonally connected cells.
Brown lines are sequence lines. Starting from either end, the digits along them increase by a constant value. This value is to be determined per line. All even digits along a line are contained within the same region. All odd digits along a line are contained within the same region. Where both even and odd digits are present on a single line, the two regions involved cannot be the same.
No two orthogonally adjacent digits in the grid may have a 1:2 ratio between them.
Example: (uses digits 1-6 instead of 1-9)
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Solution code: The digits in row 8 (left to right) followed by the digits in column 8 (top to bottom) with no spaces (18 digits in total)
on 17. April 2022, 10:00 by sunnyjum
Thanks for the solve and comments @Phistomefel, coming from you that is high praise indeed!
on 11. April 2022, 00:38 by Phistomefel
The idea behind this puzzle type is very nice and fresh and the execution is superb. Thanks a lot for setting this, sunnyjum! :)
on 5. April 2022, 17:18 by Mody
Sehr schön zu lösen, gut konstruiert.
Very nice to solve, well constructed.
on 2. April 2022, 09:28 by thefallenrat
Truly an astounding puzzle from start to finish!
on 23. March 2022, 09:58 by sunnyjum
Thanks for the great feedback @kolot, @au voleur!, @Tilberg,@marcmees, @thefallenrat and @Mody!
on 10. March 2022, 15:47 by kolot
Absolutely wonderful puzzle! I loved it. This puzzle is one of the best chaos construction puzzles I ever solved. It is highly recommended.
on 20. February 2022, 03:01 by au voleur!
That was very fun, thanks! I noticed there was a negative constraint after 45 minutes so i had a slightly rough start haha
on 19. February 2022, 17:36 by Tilberg
Not easy, but very enjoyable. Thanks!
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