Equally at Parity
(Published on 12. May 2023, 16:42 by yttrio)
This puzzle continues my series which utilizes lines that are both region sum lines as well as another line constraint, this time being paired with parity lines. I am starting this out being listed as 2 stars based on feedback from the CTC Discord, though could see it being somewhere between 2 and 3 stars for difficulty.
Rules:
Normal Sudoku rules apply.
All lines are both region sum and parity lines.
-- Region sum lines: Digits along a line must sum to the same total in each region the line enters.
-- Parity lines: Consecutive digits along a line must alternate between odd and even digits.
Solution code: Row 1 followed by column 9 (18 digits no spaces)
Comments
on 1. March 2024, 13:24 by ninjamunk
Took me a while to break in. If anyone needs a clue, look at Box x, where x=1258/17/37
on 14. May 2023, 13:39 by Prof.Dori
The break in wasn't difficult but not trivial either. Once the break in and some digits it flow really well from there and of course being carefull with coloring.
on 13. May 2023, 17:56 by A Lumbercat
Fun puzzle, but I found it a bit hard to read my pencilmarks on the CTC version. Not sure if there is an easy solution to that though.
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Thanks for the comment! I agree that the pencil marks can be a bit tough to see on the CTC version. I would probably need to use a different secondary color other than darker blue, though I've already used green, orange, yellow, and red with my other puzzles. If I make another puzzle with this rule set, I will try to find another unique color that allows pencil marks to be seen a bit easier.
- yttrio
