Without Squids, Life Would B♭
(Published on 28. May 2024, 20:14 by gdc)
This puzzle uses the Octopus Rules from The Pedalling Pianist together with Region Sum Lines. Thanks to all the testers!
- Irregular Sudoku rules apply.
- Asymmetric Region Sum Octopus
- Draw 4 lines that must not cross or overlap anywhere except R4C4, where they all intersect.
- All lines pass through R4C4 in a straight line. Each line contains exactly 2 cells on the edge of the grid where it starts and ends.
- The 4 lines are independent region sum lines. Region borders divide them into segments with equal sums.
- Cells with ♯ symbols count as one more than their digit for region sum lines. Cells with ♯♯ count as two more and cells with ♭ count as one less.
Example Puzzle
These images show a 5x5 example puzzle (left) and the corresponding solution (right). The four segments of the red line are highlighted in four different colors. You can play the example here.
Solution code: the bottom row, left to right (7 digits)
Comments
on 16. April 2025, 22:49 by QuiltyAsCharged
Excellent puzzle! Though I found it rather tricky to narrow down certain options towards the lower right.
I'm laughing imagining if I met someone who had only ever solved traditional Sudoku, and I tried to tell them about this Asymmetric Region Sum Octopus 7x7 Irregular Sudoku.
on 30. May 2024, 20:12 by Roezaea
tricky!
on 30. May 2024, 00:14 by BenTen
My first attempt fell flat, but I noticed my silly error and was sharp enough to solve second time round!
Nice puzzle, thanks for setting.
on 28. May 2024, 22:16 by gdc
fix typo. thanks @3good5you
on 28. May 2024, 20:37 by gdc
@Big Tiger: Yes
on 28. May 2024, 20:33 by Big Tiger
Do we assume the digit set is 1-7, since it's a 7x7 puzzle?
