Duality
(Published on 18. July 2026, 13:37 by Deckatron)
Normal Sudoku rules apply.
Yin Yang Rules apply:
Shade some cells such that all shaded cells are orthogonally connected and all unshaded cells are orthogonally connected. No 2x2 area may by completely shaded or unshaded.
A gray dot between two shaded cells functions strictly as a Black Kropki Dot while a gray dot between two unshaded cells functions strictly as a White Kropki Dot. A gray dot between a shaded and unshaded cell functions as both.
A Black Kropki Dot sits between two numbers that in a 1:2 ratio (one number is twice the other).
A White Kropki Dot sits between two numbers that are consecutive with each other.
Yin Yang Rules apply:
Shade some cells such that all shaded cells are orthogonally connected and all unshaded cells are orthogonally connected. No 2x2 area may by completely shaded or unshaded.
A gray dot between two shaded cells functions strictly as a Black Kropki Dot while a gray dot between two unshaded cells functions strictly as a White Kropki Dot. A gray dot between a shaded and unshaded cell functions as both.
A Black Kropki Dot sits between two numbers that in a 1:2 ratio (one number is twice the other).
A White Kropki Dot sits between two numbers that are consecutive with each other.
Solution code: Row 7
Solved by Bjd, pmays123, RailMan, SKORP17, sehringdipity, palpot, tryote, cornish-john, Aaravos, Piff, Saltensity, QuiltyAsCharged, SMM, jkuo7, Alce, karlmortenlunna, PippoForte, efnenu, lune, Julianl, Janie, tuckerbucket
Comments
on 19. July 2026, 16:38 by upinthesky
Very fun logic, a nicely constructed yin-yang puzzle!
on 18. July 2026, 15:17 by pmays123
Very satisfying challenge. Thanks for sharing!
