Doku
Geodoku

The daily puzzle

Nine cells, two criteria each, one grid a day.

Every cell crosses its row criterion with its column criterion: find an answer that matches both. The rarer your answer among players, the more points it scores.

The 101 French departments

Free, no sign-up: one grid per universe per day.
Free play · Endless grids, no score, no leaderboard.

Example gridGeodoku France
Has a sea coastline
One-word name
Odd department number
Located in Brittany
Finistère+24
Morbihan+33
Ille-et-Vilaine+45
Located in Normandy
Manche+38
Located in Occitanie
Hérault+29
Finistère is in Brittany and has a sea coastline: it matches both criteria of its cell. A department can only be used once.

How it works

  1. 1Fill the nine cellsTap a cell and search for your answer. It must match both its row and its column criteria, and each answer can only be used once.
  2. 2Three livesA wrong answer costs a life. Out of lives, the game ends, but the cells you found still count.
  3. 3Come back tomorrowOne game per universe per day. Playing every day grows your streak.
How points work

The rarer your answer among players, the more it scores. An answer nobody thinks of is worth far more than the obvious one. Mistakes cost a few points, and finishing fast earns a small bonus.

See the full rules

Geodoku France applies the Doku mechanic to the 101 French departments, overseas included. Nine cells, one criterion per row and per column, and at every intersection a department that meets both. Occitanie crossed with Coastline: Hérault works, Tarn doesn't.

One grid a day, the same for everyone, three lives, a rarity score and a leaderboard. Free play generates unlimited grids.

What the grid asks for

Regions, prefectures and their first letter, coastline, rivers crossing the department, mountains, borders with a neighbouring country, overseas departments, renamed departments, number of neighbours, population, area, odd or even number.

Frequently asked questions

Which prefecture counts when the city has changed?
The department's legal seat. For Val-d'Oise that is Pontoise, even though the offices are in Cergy.
Are the overseas departments included?
Yes. Guadeloupe, Martinique, French Guiana, Réunion and Mayotte are among the 101, with a dedicated overseas criterion.
Is Geodoku France free?
Yes. Today's grid and free play are free to play in the browser, no account required. The Doku app is also available on iPhone and Android, with the same grids and the same progress.

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