Yin Yang Gone Wrong
(Published on 24. September 2026, 14:06 by Vythic)
Play on SudokuPad!
Normal sudoku rules apply.
Cageless Yin Yang: 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. Cells in a cage do not count as shaded or unshaded.
Secret Summit: Every orthogonal path that is fully contained within shaded cells must increase or decrease, with 1 and 9 reversing the direction. Every orthogonal path along unshaded cells must do the same.
Vision Arrows: 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 group of shaded/unshaded cells as the arrow cell.
Thermometers: Cells on a thermometer are either all shaded or all unshaded. Digits along a thermometer increase from the bulb.
Killer Cages: Digits in a cage sum to the number in the top-left of the cage.
Normal sudoku rules apply.
Cageless Yin Yang: 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. Cells in a cage do not count as shaded or unshaded.
Secret Summit: Every orthogonal path that is fully contained within shaded cells must increase or decrease, with 1 and 9 reversing the direction. Every orthogonal path along unshaded cells must do the same.
Vision Arrows: 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 group of shaded/unshaded cells as the arrow cell.
Thermometers: Cells on a thermometer are either all shaded or all unshaded. Digits along a thermometer increase from the bulb.
Killer Cages: Digits in a cage sum to the number in the top-left of the cage.
Solution code: Column 2, top to bottom, with a "+" between digits that differ in being shaded/unshaded
Last changed on yesterday, 09:17
Solved by kublai, hanna_werner, Piff, Tompzini, nunc, Malakree, Baklin, stranac, tempsperdu, enjoy010502
Comments
Last changed on 26. September 2026, 19:46
on 25. September 2026, 19:42 by Baklin
I liked this one a lot, once I figured out the restrictions with this rules set.
Vythic: Thank you! My time setting recently has been me hypnotized by this ruleset.
