Last updated: 20 August 2026
If you have solved one binary logic puzzle, the others will feel familiar straight away. Here is what Tango, Binairo and Takuzu share — and where they part ways.
They share the same binary logic: balance two symbols and never place three identical ones in a line. Sun & Moon (Tango) adds = and × clue markers between cells and uses suns and moons instead of ones and zeros.
| Sun & Moon (Tango) | Binairo | Takuzu | |
|---|---|---|---|
| Symbols | Suns and moons | Dots in two colours | 0 and 1 |
| Grid sizes | 6×6 and 8×8 | 8×8 up to 14×14 | 6×6 up to 12×12 |
| Line balance | Yes | Yes | Yes |
| No three in a line | Yes | Yes | Yes |
| Clue markers | = and × | None | None |
The clue markers. A = between two cells forces them to match and a × forces them to differ, which unlocks deductions a plain Binairo or Takuzu grid cannot offer. Suns and moons are also quicker to read at a glance than rows of ones and zeros, which is why Tango works so well on a phone.