About the game
The smallest sudoku: four rows, four columns, four boxes, numbers 1 to 4. Solved in a minute, and the gentlest way to see how sudoku works, for children too.
Rules
Fill the grid so that every row, every column and every 2×2 box holds each number from 1 to 4 exactly once.
Every puzzle has exactly one solution, so it can always be found by reasoning, without guessing. A number that breaks a rule turns red.
How to play
- Tap a cell, then a number below the board (or type it).
- Every row, column and 2×2 box holds 1 to 4 once.
- Not sure? Switch on notes and pencil in the options.
- Languages
- EN · DE
- Works on
- Phone, tablet, computer
- Players
- Just you