Sudoku 2
Memory
The most popular number logic game that trains your logical thinking and concentration. Sudoku originated in 18th century Switzerland, flourished in Japan, and has now become one of the world's most popular puzzle games.
Game Rules
1
Fill in numbers 1-9 in a 9×9 grid
2
Each row must contain all numbers 1-9
3
Each column must contain all numbers 1-9
4
Each 3×3 sub-grid must contain all numbers 1-9
5
Each number can only appear once in each row, column, and sub-grid
