Yin-Yang Solving Tips
Yin-Yang is a connectivity puzzle with two patterns that do most of the work. New here? Read the rules first.
1. No checkerboards
A 2×2 block coloured white-black / black-white can never occur: the two whites would have to connect around the two blacks, and vice versa. When three squares of a 2×2 are set in a checkerboard pattern, the fourth is forced.
2. Three of a kind
Three squares of a 2×2 block already the same colour force the fourth to be the other colour.
3. One stretch per colour on the border
Walk around the edge of the grid: each colour must appear as one continuous run. A border square between two blacks (with no white route around) must be black.
4. Don't cut anything off
Before placing a circle, check that every white circle can still reach every other through empty or white squares, and the same for black. A single misplaced circle often strands a corner.
5. Think in paths
Each colour is one tree-like shape. Ask how a stranded circle will join the rest: the path usually runs through squares that are then forced.
Frequently asked questions
What's the border rule in Yin-Yang?
Going around the outside of the grid, each colour appears as a single unbroken stretch (or not at all). Two separate white stretches on the border would have to be joined inside, and the black between them could never connect around.
Last updated 2026-10-21