Peel Back the Layers
(Published on 10. December 2023, 04:00 by XeonRisq)
- Normal sudoku rules apply.
- Global Entropy: Every 2x2 square of cells must contain a low digit (1,2,3), middle digit (4,5,6) and high digit (7,8,9).
- Double Arrows: The sum of the digits on the line must equal the sum of the digits in its end circles.
- Parity Quads: The digits that surround a blue dot must be either all odd or all even. The digits that surround an orange dot must be either all prime or all composite. (1 is neither prime nor composite)
- SudokuPad link - link to solve online
Solution code: Row 9 followed by Column 8
Comments
on 12. December 2023, 20:08 by shteev
A little baffled by this one. Right near the start, I see two huge solution paths unfolding before me, and neither of them seem to collapse easily. Bifurcating either let me fill in half the puzzle with relative ease, and the contradiction that eventually turned up in box 4 left me none the wiser as to where the intended solution path should be
Finally cracked it but I do feel a little like I only made 1 deduction ^_^
-----
Bifurcation is not needed. My solve path was quite similar to the other test solves I watched, which no guessing occurred. I'm not sure why you started just filling in the grid without using the clues/constraints so I guess that leaves me a little baffled. ;)
on 10. December 2023, 23:11 by Myxo
Neat interactions :)
-----
Appreciate the solve, the parity quads did some interesting things here.. might have to investigate them further!
on 10. December 2023, 12:15 by Snookerfan
Very nice! Thank you
-----
You're quite welcome. Thanks for the solve and nice words.
on 10. December 2023, 08:29 by Bankey
That was fun! Thanks, @ XeonRisq:).
-----
Hey Bankey, glad you enjoyed it. Thanks for taking for a spin.
on 10. December 2023, 06:11 by by81996672
good puzzle,thank you
-----
Appreciate the solve/feedback.
