Yin Yang Mayhem
(Published on 2. October 2026, 17:23 by Vythic)
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Digits are not repeated in rows, columns, or regions. The grid is divided into nine regions, each consisting of orthogonally connected cells containing the digits 1-9.
Shade some cells such that all shaded cells are orthogonally connected, all unshaded cells are orthogonally connected, and no 2x2 cluster of cells is entirely shaded or unshaded. Digits orthogonally along shaded cells must be ascending or descending, with 1 and 9 reversing the direction. Digits along unshaded cells must do the same.
A digit on an arrow indicates the length of the uninterrupted run of cells immediately beyond the arrow, in the arrow's direction, that belong to the same region as the arrow cell.
Digits in a cage sum to the number in the top-left of the cage and cannot repeat. Within each cage, all digits of the same parity share the same region, and digits of opposite parities cannot share a region.
Cells on a thermometer are either all shaded or all unshaded. Digits along a thermometer increase from the bulb.
Digits are not repeated in rows, columns, or regions. The grid is divided into nine regions, each consisting of orthogonally connected cells containing the digits 1-9.
Shade some cells such that all shaded cells are orthogonally connected, all unshaded cells are orthogonally connected, and no 2x2 cluster of cells is entirely shaded or unshaded. Digits orthogonally along shaded cells must be ascending or descending, with 1 and 9 reversing the direction. Digits along unshaded cells must do the same.
A digit on an arrow indicates the length of the uninterrupted run of cells immediately beyond the arrow, in the arrow's direction, that belong to the same region as the arrow cell.
Digits in a cage sum to the number in the top-left of the cage and cannot repeat. Within each cage, all digits of the same parity share the same region, and digits of opposite parities cannot share a region.
Cells on a thermometer are either all shaded or all unshaded. Digits along a thermometer increase from the bulb.
Solution code: Row 4, with a "+" between digits of different regions.
Solved by sze, Franjo, sahi1l, ManlyPebbles, Vic, haoju, YoshiKyon, ZornsLemon, garage, Piff, erml, BlazingSnow, dogfarts, Vodakhan , tuckerbucket, ChigBeese, Dcs, zakkai, VesperV, tempsperdu, Dr Hans, karlmortenlunna, PippoForte, wenchang, MountBecton, misko, peacherwu2, han233ing, Snookerfan, Fredneu, garomo, esumpter, JDP678, oiyad, mathhead, wildbush7
Comments
on 8. October 2026, 17:39 by garomo
Amazing puzzle
on 4. October 2026, 05:42 by ChigBeese
Unless I made some logical leaps, I found that the grid was completely solvable without having to consider the regions/chaos construction. Regardless it was still a very fun puzzle.
on 3. October 2026, 14:09 by erml
Amazing!
Last changed on 2. October 2026, 22:39
on 2. October 2026, 20:54 by Franjo
Thank you very much for creating and sharing this awesome CC-YY-puzzle.
Vythic: TY for playing!
