How the daily sudoku works
There is one puzzle a day and everyone gets the same one, wherever they are. A new puzzle appears every day at midnight UTC, and the countdown above shows exactly when.
The difficulty follows the week: easy on Monday and Tuesday, medium on Wednesday and Thursday, hard on Friday and Saturday, and an expert puzzle to finish the week on Sunday.
Solve the puzzle on its own day to grow your streak. Missed a day? Past puzzles stay playable, so you can catch up and complete the week. Catching up fills in the week card, but only puzzles solved on their day count toward a streak.