Do you want to play Sudoku online for free – right now, without registration and download? Great choice! Logic puzzle Sudoku stimulates mental abilities, trains the skills of logic and visual perception.
Classic Sudoku (including this online game) features a 9 by 9 table divided into three-by-three blocks. Some cells are filled with numbers from the number series from 1 to 9. The task of the game is to determine the missing numbers in each row and column, based on their interdependence.
Rules for selecting numbers in Sudoku online
To find out what number will be in the selected cell, analyze its position, taking into account the following rules.
- Each line of Sudoku must contain numbers from 1 to 9 in any order, but exactly once.
- A column of a large Sudoku grid (9×9) meets the same requirements – a random order, but a strict sequence from one to nine.
- Numbers 1 to 9 must be displayed once in each 3×3 block.
Please note that a Sudoku puzzle has only one unique solution. To enter a number into the grid, first click on the selected cell, then on the appropriate number. If you find the correct answer, the game will highlight the cell in green, in case of an error – in red.
The task of Sudoku is to look for relationships between numbers, assuming one of the values to check it for compliance with all conditions. Whenever you enter a number, make sure it doesn’t repeat itself in this row, in this column, or in the small 3×3 block.
You’ve learned how to play Sudoku, it’s time to put yourself to the test! Expand the screen to full size and go for it!