Logic Masters Deutschland e.V.

Nightshade

(Eingestellt am 29. Juni 2026, 00:18 Uhr von Lithium-Ion)

This puzzle is a combination of the anti-knight constraint with yin and yang. Feedback is always greatly appreciated! The rules are as follows:

Normal Sudoku rules apply. Cells that are a knights move apart are not allowed to contain identical digits. Shade some cells in the grid such that no 2x2 region is fully shaded or fully unshaded. All shaded cells form one orthogonally connected region and all unshaded cells form one orthogonally connected region. A cell with an arrow equals the number of shaded cells in the indicated direction (excluding the cell itself), where unshaded cells do NOT block vision.

You can play this puzzle via the following link: https://sudokupad.app/u1zic2rp7x

Lösungscode: The digits in row 1, read from left to right.

Zuletzt geändert am 7. Juli 2026, 18:38 Uhr

Gelöst von gwai77, Joyofrandomness, SPOU1, Qodec, JohanW, fuxia, sehringdipity, Steven R, benvegmond, GorgeousNicko, ArkansasJones, Klyzx, Greg, SeveNateNine, terrible_casserole, Xean, NeroChaos, Elliebot, ... e0lith, Trinn, Gwannyn, MariosKRMarouditsis, mackant1, Treme, RedBulls75, ManuH, megabat, Ton, freshcoffee, Mgbator, SpecSheets, LabRat, Uhu, Jesper, Romordis, Tacocat, yttrio, chushoujun9878, chet
Komplette Liste

Kommentare

am 11. Juli 2026, 08:42 Uhr von PatternSpren
This is an absolute fun puzzle. I loved every part of it.
Thanks

am 9. Juli 2026, 18:21 Uhr von bleppie
Really smooth and nice, thanks!

am 7. Juli 2026, 18:38 Uhr von Lithium-Ion
It is an honor to get a recommendation from James Sinclair, so thank you very much! This made my day.

am 6. Juli 2026, 14:43 Uhr von VitP
you might expect a yy puzzle to be level 3 as a matter of course.
turns out that this is really 2 separate puzzles.
the yy part is very easy, as such puzzles go, due to the specific counting clues.
then the anti-knight puzzle is quite easy, because you will have lots of "givens"

am 1. Juli 2026, 12:31 Uhr von Snookerfan
Very nice! Close to 3 star for me, thanks

am 30. Juni 2026, 13:24 Uhr von rojspencer
Very nice puzzle. Really enjoyed it.

am 30. Juni 2026, 09:50 Uhr von Nemefish
yinyang is my favorite variant and this is a brilliant implementation

am 29. Juni 2026, 23:54 Uhr von Exigus
Smooth for a yin yang, thanks!

am 29. Juni 2026, 19:14 Uhr von Franjo
Thank you very much for creating and sharing this lovely (and quite easy) puzzle.

am 29. Juni 2026, 19:09 Uhr von Srinidhi Kabra
Beautiful puzzle! Almost got stuck initially because I forgot that this is an anti-knight puzzle, but once I realised that it was a very easy and smooth solve, 1* for me personally.

am 29. Juni 2026, 15:46 Uhr von mihel111
Very impressed by the way the arrows interact. Very well set.

am 29. Juni 2026, 14:38 Uhr von Snaques
Very fun puzzle.

I did get on a wrong path by the rule "where unshaded cells do NOT block vision".

I read it as where they don't block the sightline, they can be disregarded, but where they do block the sight they are restricting the sightline.

am 29. Juni 2026, 10:36 Uhr von Fizz
A very fun and approachable puzzle with nice logic all the way through. Thanks a lot!

am 29. Juni 2026, 09:42 Uhr von Miatc
Beautiful 2* puzzle

am 29. Juni 2026, 07:41 Uhr von wuc
Having solved many yy puzzles it was approachable 2* to me. But an excellent entry puzzle to yy. Great setting thx.

am 29. Juni 2026, 07:05 Uhr von Pairot
It took me a while because I misread the rules, turns out the arrow always count shaded cells hehe.
Was super smooth after I adjusted. 1* if you are somewhat familiar with ying yang.

am 29. Juni 2026, 06:22 Uhr von Decapod
It took me a full 52 minutes, but I never felt like it was hopeless. Slow and steady, with a good flow for me. Nicely constructed, thank you.

Schwierigkeit:2
Bewertung:96 %
Gelöst:283 mal
Beobachtet:3 mal
ID:000TIE

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Lösungscode:

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