The lineup
Binairo, the binary cousin of Tango
Zeros and ones, never three alike.
Rule · No three alike; balance every line.
Logic3–7 minbinary fillbalanceno three in a row
Binairo is Tango without the pictures. Zeros and ones instead of suns and moons, the same ban on three alike in a line, and the same quiet cascade when placing one cell decides three of its neighbours.
It adds one rule Tango does not have, that no two rows or columns may be identical, and that is what turns the last handful of cells into real deduction. Daily board, plus 600 Takuzu grids from 6×6 to 14×14.
