Sudoku Game for Week, Month, Year

Challenge your mind with increasingly difficult puzzles in Sudoku Game for Week, Month, Year! Get ready for incredible logical deduction in this game! The rules, as always, remain unchanged. You can choose one of three difficulty modes: easy, medium or hard. Each game takes place on a 9x9 game board and consists of 81 cells. You need to fill in all empty cells with digits so that in one row, one column and one mini block 3x3 was not repeated digits. Each of the digits must occur only once