Takuzu
Binary logic, graded by the technique each board actually needs.
Three binary-logic grids a day — Dawn, Dusk, Night. Tap a cell: sun, moon, empty. Solve all three to keep the streak.
Three grids a day, each one proved
A difficulty label that names the technique, not a star rating
Three grids every day
Dawn 6×6, then Dusk 8×8, then Night 10×10 — the same three worldwide. The day feeds your streak only when all three are balanced.
The label is the technique
Dawn, Day and Dusk finish by pure deduction; Night allows one bounded what-if. Every board's solution is proved unique before it ships.
Practice and archive, free
Endless fresh boards at any of the four tiers, up to 12×12, unlocked from the first launch. The archive replays any past date's three grids.
Readable without colour
Sun and moon differ by shape, not colour — tight grids and Bold Text switch to a disc and a square. Every cell has a VoiceOver label and action.
Offline, and five languages
No account and no sign-up. English, German, Arabic, Persian and Kurdish (Sorani), right-to-left, each with its own numerals.
Free, with one Pro unlock
Free to play. An ad on the break after a solve, never on the board. A €1.99 Pro unlock removes ads and lifts the hint cap. No subscriptions.
See it in play
The daily hub, a board mid-solve, the same board in Kurdish Sorani, and your stats.
Ready to try Takuzu?
Binary logic, graded by the technique each board actually needs.
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