We continue to introduce you to a series of Sudoku puzzles for every day and offer the twenty-first game - Weekend Sudoku 21. The task is to fill in all empty cells with numbers. You can take them from the set under the playing field. First, click on the cell you are going to fill in, and then select the number. Solving Sudoku every day, you will notice that your brain is working more efficiently and faster. It seems to be nothing special, just put numbers so that there are no repetitions in any of the directions: diagonal, vertical, horizontal in Weekend Sudoku 21.