Sudoku is a very popular and fun to learn logic puzzle game with the placement of numbers.
"Sudoku " is a Japanese word (meaning "single digit"). Variations of this puzzle first appeared in the 19th century. The game gained real popularity after appearing in magazines and newspapers.

It is proved that this game develops at least 4 areas:
- concentration
- learning
- memory
- relaxation

The following options are implemented in the game:
- choice of difficulty level;
- using a hint;
- cancel the move;
- tags, to facilitate passage
- and much more.

Even 10 minutes spent on solving the sudoku puzzle will help you get away from other worries. A short break in combination with the work of the brain will help to cope with stress and irritability.