Rules and help

How daily challenges work

Every day, each game offers one grid that is identical for every player.

Challenges refresh at midnight UTC; the home page shows the matching local time.

Playing at least one daily challenge extends your streak. Every 7 days of streak earns a joker, which protects the streak from one missed day.

Sudoku

1. The grid has 9 rows, 9 columns and 9 boxes of 3 × 3.
2. Place a digit from 1 to 9 in every empty cell.
3. Each digit appears exactly once in every row, column and box.
4. Every Oriqela grid has a single solution you can reach by logic alone, without guessing.

Killer Sudoku

1. Sudoku rules apply: each digit from 1 to 9 appears once per row, column and box.
2. The grid is split into cages, drawn with dotted lines. A cage’s small number is the sum of its cells.
3. A digit never repeats within a cage.
4. No digits are given at the start. Every grid has a single solution, found by logic.

Binary

1. Fill every cell with one of two symbols: a light dot or a dark dot.
2. Never more than two identical symbols next to each other, across or down.
3. Every row and every column holds as many light dots as dark dots.
4. No two rows may be identical, and no two columns.