Region Sum Yin Yang
(Published on 4. July 2024, 20:00 by apete)
Shade some cells such that all shaded cells form a single, orthogonally connected area and all unshaded cells form a single, orthogonally connected area.
No 2x2 region can be completely shaded or unshaded.
Cells separated by dots or Xs are in different regions.
Digits separated by a white dot are consecutive.
Digits separated by an X sum to 10.
The digit in the grey square is even.
Box borders divide the shaded region into segments and the sum of the digits in these segments is the same for all such segments.
Solution code: Just the shaded cells in row 7 (from left to right with no spaces).
Comments
on 15. July 2024, 05:46 by snn
Absolutely lovely, a great puzzle for a beginner like me to start warming up to more advanced techniques!
on 8. July 2024, 12:14 by Fra314
Fantastic puzzle, every deduction is fair and everything flows quite well. Amazing!
on 8. July 2024, 02:37 by fitzie
slightly harder than a two for me, but that's because i struggled a bit with the break in. i think the shaded are region sums is my favorite yin yang now.
on 6. July 2024, 14:44 by thoughtbyte
Very nice, thanks!
on 5. July 2024, 22:23 by Blashyrkh
Thanks for setting! Such a natural combination of rules, and wonderfully executed.
on 5. July 2024, 20:03 by harwiltz
Great puzzle. One thing that confused me was the definition of a "segment" (orthogonally connected shaded region within a box vs set of all shaded cells within a box).
on 5. July 2024, 15:17 by Dag H
Really smart combination of rules - honestly annoyed I didn't think of it first. And great execution, very nice puzzle
on 5. July 2024, 13:29 by Franjo
Wonderful combination of YY and RSL, excellent setting. Thank you so much for sharing this lovely puzzle.
on 5. July 2024, 07:41 by Sinuit
Perfect puzzle for me. Thanks a lot for creating and sharing!
on 5. July 2024, 06:14 by brandon_bot
My first Yin Yang puzzle. A very brisk 1 hour 47 minute pace for me :) But enjoyable.
on 5. July 2024, 05:45 by rameshsrivats
Very cool puzzle. Loved the solution code :)
on 4. July 2024, 21:45 by wuc
Great puzzle. To me, an experienced yin yang solver quite approachable 2 star. Enjoyed it very much thx.
on 4. July 2024, 21:40 by fuxia
Very good fun, consistent difficulty, and even a great solution code. :) Thank you!
