Yin Yang Product-Sums
(Published on 19. January 2025, 17:37 by Oddlyeven)
Rules: Put the digits 0 to 8 once each into each row, column and 3x3 box.
Yin Yang: Shade some cells such that all shaded cells are othogonally connected and all unshaded cells are othogonally connected. No 2x2 area is all shaded or all unshaded.
Negators: A shaded cell has a value equal to the negative of its digit for the following rules.
Product-Sum Lines: The product of the values in the squares at either end of a line is equal to the sum of the values along that line.
Dots: Values on a white dot are consecutive. Values on a black dot are in a 1:2 ratio.
Links:
SudokuPad: https://sudokupad.app/5quy2gu5oh
Solution code: Row 5, left to right (9 digits).
Comments
on 24. January 2025, 15:44 by MaizeGator
Brief rule clarification: are the digits in the squares included in the sum?
No, squares are not included in the sum. -Oddlyeven
on 20. January 2025, 02:58 by 3good5you
Fun puzzle with many interesting interactions!
on 19. January 2025, 17:42 by Donatello_86
A very nice challenging puzzle.
