Binairo Techniques

Five techniques solve every Binairo on PeerPuzzles. Learn them in this order: the first three are quick checks you can make at a glance, and the last two are for when those run out. Each page shows its technique on the same 10×10 puzzle from the game, at the moment it’s first needed, so you can follow one solve from page to page.

Hard level 2, the 10×10 every technique page follows. It takes 57 steps and needs all five techniques.

How many of the game’s levels need each one, out of 50 in each track:

Technique	Easy 6×6	Medium 8×8	Hard 10×10
Pairs	50	50	50
Gaps	50	50	50
Full count	50	50	50
No repeats	0	41	38
Every arrangement	0	49	50

“Needs” means the hints, which always use the simplest technique that works, used it at least once. For all five in one place, with another worked puzzle, see how to solve Binairo.

Guides

Binairo Pairs: Two Alike Side by SideTwo alike side by side in a Binairo (Takuzu) line can't have a third beside them, so the squares at either end are the other colour. With a real example.
Binairo Gaps: One Square Between Two AlikeWhen two alike in a Binairo (Takuzu) line have one square between them, that square must be the other colour. How to spot it, with a real example.
Binairo Full Count: Half and HalfEvery Binairo (Takuzu) line is half one colour and half the other. Once a line has half of one, the rest of it is the other. With a real example.
Binairo No Repeats: Don't Copy a LineNo two rows (or columns) in a Binairo (Takuzu) may be the same. When a line has two squares left, a finished line can decide them. With a real example.
Binairo: Try Every ArrangementWhen no quick Binairo (Takuzu) technique works, list every way a line can still be finished: squares the same in all of them are settled. With a real example.