Logic Masters Deutschland e.V.

Positive Negativity 5

(Eingestellt am 3. November 2025, 06:35 Uhr von The Bard)

Normal Sudoku rules apply, place the digits 1-9 in each row, column, and box.

Yin Yang: shade some cells so that all shaded and unshaded cells form 2 orthogonally connected areas such that no 2x2 area is entirely shaded or unshaded, and all the digits values in the shaded area are negative values.

Killer Cages: VALUES in cages add up to the total in the corner, and DIGITS may not repeat in a cage.

Solve on CTC

This is a sequel to Positive Negativity,

Positive Negativity 2,

Positive Negativity 3,

and Positive Negativity 4.

If you like this puzzle you may enjoy some of my other puzzles too, click HERE to see the other puzzles I have made.

Lösungscode: Negative digits in row 4


Gelöst von wuc, by81996672, salsais, tryote, SincereEngineer, yttrio, Imagio, TripleABattery, efnenu, tgstar, Bjd, Sudokode, masetab, Killer-Ly , richardkchapman, samuella, Counterfeitly, Deivi55, jhsa, SEPHEN, ... meiwanmeiliao, trashghost, paranoid, GinaT86, SFP, Topalai, Asphodel, Jodelbanane, belnovic, beansontoast_, mezkur7, Flying Whale, jkuo7, Kolobra, Selsted, Altynbek , curunir22, LabRat, Khatru
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Kommentare

am 4. November 2025, 23:29 Uhr von dzamie
This is a neat concept, but too difficult for my lack of familiarity with the negativity constraint. Marked a few squares as positive/negative, figured out the parity of some more, and got fully stuck.
Guess I'll see if any of the others in this series are easier introductions :P

Zuletzt geändert am 4. November 2025, 16:11 Uhr

am 4. November 2025, 16:10 Uhr von ClassicF
Very enjoyable. Just for my level. Thx

am 3. November 2025, 23:46 Uhr von Chaossudokusplease
Wonderful flow to this puzzle, definitely agree you should keep making these!

am 3. November 2025, 23:46 Uhr von Chaossudokusplease
Wonderful flow to this puzzle, definitely agree you should keep making these!

am 3. November 2025, 18:29 Uhr von DanishDynamite
Very enjoyable. More please!

am 3. November 2025, 07:37 Uhr von wuc
Very nice YY puzzle. This time surprisingly approachable to me. 2-2.5*. Great fun thx.

Schwierigkeit:2
Bewertung:95 %
Gelöst:99 mal
Beobachtet:0 mal
ID:000PYY

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