Positive Negativity 5
(Published on 3. November 2025, 06:35 by 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.
This is a sequel to Positive Negativity,
If you like this puzzle you may enjoy some of my other puzzles too, click HERE to see the other puzzles I have made.
Solution code: Negative digits in row 4
Comments
on 4. November 2025, 23:29 by 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
on 4. November 2025, 16:10 by ClassicF
Very enjoyable. Just for my level. Thx
on 3. November 2025, 23:46 by Chaossudokusplease
Wonderful flow to this puzzle, definitely agree you should keep making these!
on 3. November 2025, 23:46 by Chaossudokusplease
Wonderful flow to this puzzle, definitely agree you should keep making these!
on 3. November 2025, 18:29 by DanishDynamite
Very enjoyable. More please!
on 3. November 2025, 07:37 by wuc
Very nice YY puzzle. This time surprisingly approachable to me. 2-2.5*. Great fun thx.
