Every Day Sudoku

The date on the puzzle calendar matches the real one. Every day on that calendar carries its own Sudoku board, and finishing the current date unlocks the next one on the list. Work through the month in sequence or drop in for a single daily puzzle. Every Day Sudoku uses the classic 9x9 number grid, with five difficulty settings ranging from Beginner to Expert. The selected setting changes how many digits are already placed in the grid. The daily layout itself stays tied to that date.

How to play?

Fill all 81 squares with numbers from 1 to 9. Place each digit once in a row and once in a column. Each 3x3 block also accepts each number a single time. A wrong number gets marked in red. Free hints are available at any time, and they work without ads.