Duplication
(Published on 28. July 2023, 00:00 by Xenonetix)
• Normal Sudoku & Yin-Yang rules apply.
• Unshaded cells are doubled for all arrow clues.
• Digits along arrow lines sum to the corresponding circled value.
• Yin-Yang: Shade some cells, so these conditions are all fulfilled:
◦ ◦ All shaded cells are orthogonally connected.
◦ ◦ All unshaded cells are orthogonally connected.
◦ ◦ No 2x2 area is fully shaded or fully unshaded.
Here's an example puzzle to demonstate the rules:
Hope you enjoy the puzzle! 😄 - Any feedback or comments welcome!
Solution code:
Row 2 (left to right) with dashes when switching between shaded to unshaded cells. (e.g. 123-4-56-789)
Comments
on 25. January 2025, 01:22 by yttrio
Very tricky, very fun, and very satisfying to finally complete! I definitely had to pay attention to the right arrows at the right time to make it through, but it was very worth it in the end!
on 4. June 2024, 01:24 by codewizard
I really liked this one. Very hard (for me), and took me 3.5 hours, but at the same time it never felt frustrating; there was always something to tweak or some options to narrow down until they revealed something. I'm very pleased, and somewhat surprised, that I didn't manage to break it at any point :-)
on 17. August 2023, 00:52 by Chilly
Very nice - thanks.
on 31. July 2023, 04:37 by shteev
Wow, that's a good one ♥️
I gotta say:why would you double the UNshaded cells. That seems weird to me ^_^
X: Seems to be the standard for YY variant puzzles, which I agree is a bit weird, but the way I see it is that the shaded cells are the darker cells, so the lighter ones are the 'highlighted' ones. :)
on 30. July 2023, 17:34 by Myxo
Wonderful puzzle! Loved it.
on 29. July 2023, 17:08 by Calvinball
This is equal parts stunning and insanity. Thank you so much!
on 29. July 2023, 12:40 by Snookerfan
Magnificent! Thank you
on 28. July 2023, 09:21 by henrypijames
This looks like a puzzle that invites a lot of mistakes, but miraculously I've managed to solve it without making any.
on 28. July 2023, 04:27 by RockyRoer
So, am I understanding correctly, in the example, the long arrow is 4 doubled = 8, which is 1 + 3 + 2 + 1doubled?
The top right is 3doubled = six, which is 1 doubled + 2 doubled,
And the bottom right is 4 doubled = 8, which is 1 doubled + 2 + 4...
Was very confused till i realized the number in the circle can also be doubled.
X: This is all correct :)
