What is Tango? The binary logic puzzle explained
Tango is a binary logic puzzle played on a square grid: you fill every cell with one of two symbols so each row and column is balanced, no three identical symbols sit in a row, and equality/difference connectors are respected. 8Soluna is a free game in this style — solvable entirely by logic, never by guessing.
How does a Tango-style puzzle work?
Each puzzle is a grid that starts with a few given symbols. You complete it with two symbols — in 8Soluna, ☀️ Sun and 🌙 Moon — following three rules: balance, no three in a row, and the = / × connectors between cells.
Because the rules constrain each other, a well-made puzzle has exactly one solution that pure deduction can reach.
Where does the Tango puzzle come from?
Binary logic puzzles like this — sometimes called Binairo, Takuzu, Unruly or, more recently, Tango — share the same family of rules: two symbols, balanced lines, and no three in a row. The genre has been popular in newspapers and puzzle apps for years.
8Soluna is built in this tradition and adds its own worlds, modes and mechanics on top of the core idea.
Is 8Soluna the same as LinkedIn's Tango?
No. 8Soluna is an independent game inspired by the same style of binary logic puzzle. It is not affiliated with, associated with, or endorsed by LinkedIn. The word Tango is used here only to describe the genre, as a free alternative in the same style.
What does 8Soluna add to the genre?
- A free Daily Challenge that's the same for everyone, every day.
- A 200-stage Campaign across 20 worlds that teaches each mechanic gradually.
- An Endless mode with Classic, Against the Clock and Zen variants.
- Extra mechanics in later levels: balanced regions, neighbour counts, diagonal no-triples and linked pairs.
- Colorblind-friendly themes, a dark mode, and play in 6 languages.