Rules:
1. Normal sudoku rules apply.
2. Shade some cells such that all shaded cells are orthogonally connected, all unshaded cells are orthogonally connected, and no 2x2 area is fully shaded or fully unshaded.
3. Along blue lines, digits have an equal sum within each region it passes through. If a line passes through a box multiple times, each individual segment sums separately.
3. Along blue lines, digits have an equal sum within each region it passes through. If a line passes through a box multiple times, each individual segment sums separately.
Furthermore, blue lines are compatible with the yin-yang rules. (Along each blue line, the sum of the digits in shaded cells is the same within each box it passes through. The same is true for unshaded cells.)Puzzle:
Solution code: Column 1 (write as a 9-digit number).
on 6. October 2023, 20:10 by StefanSch
Nice!
~ Thanks!
on 6. October 2023, 20:06 by Calvinball
I love a good yin yang, and this is a very good yin yang. An extremely fun idea with an exceptional execution. Thanks!
~ Great to hear!
on 6. October 2023, 16:26 by OutOfMyMindBRB
Lovely combination of constraints, challenging, with some interesting logic. Loved it :-)
~ Thank you!