How to play
Every game uses the same controls in the same places: tap a cell, then tap a number. Notes, Undo, Hint and Check work the same everywhere. Pick a game to learn its three rules and watch an animated example.
Sudoku
- Fill every empty cell with a number from 1 to 9.
- Each row and each column must contain 1 to 9 once.
Killer Sudoku
- Fill the grid so every row, column and 3×3 box contains 1 to 9 once.
- The numbers in each dotted cage add up to the small total in its corner.
Diagonal Sudoku
- Each row, column and 3×3 box contains 1 to 9 once.
- Both long diagonals (corner to corner) also contain 1 to 9 once.
Math Cages
- In a grid of size n, each row and each column contains 1 to n once.
- Each outlined cage shows a target and an operation (+, −, × or ÷).
Kakuro
- Fill each white cell with a number from 1 to 9.
- The numbers in each run add up to the clue: across clues are above the diagonal, down clues below it.
Nonograms
- Each clue number is a block of shaded cells in that row or column, in order.
- Blocks are separated by at least one empty cell.
Minesweeper
- Each number shows how many mines touch that square (including diagonals).
- Uncover every square that is not a mine to win.
Binairo
- Fill every cell with 0 or 1.
- No more than two of the same number next to each other in a row or column.
Futoshiki
- In a grid of size n, each row and column contains 1 to n once.
- A sign between two cells shows which one is bigger: the open side faces the bigger number.
Suguru
- A region of n cells holds the numbers 1 to n, once each.
- The same number can never touch itself, not even corner to corner.
Wordoku
- Fill every empty cell with one of the nine letters shown on the letter pad.
- Each row and each column must contain all nine letters once.
Hitori
- Shade cells so that no number appears twice among the white (unshaded) cells of any row or column.
- Shaded cells may never touch side by side (touching at a corner is fine).
Nurikabe
- Each number belongs to one island: a group of white cells joined side by side, with exactly that many cells (counting the number).
- Every island has exactly one number, and islands never touch side by side.