Sudoku number 1

Difficulty:

Sudoku is a diagram of nine by nine boxes in which the numbers from 1 to 9 must be entered. The diagram of 9x9 is again subdivided into a box of 3x3. A number from 1 to 9 must be entered in each box.
In order to solve the puzzle, the boxes must be filled in such a way that in each row, every column and each box of 3x3 the numbers 1 to 9 only occur once.

You do not have to be a clever head, just a little patience and logical reasoning is needed to solve the puzzle.

6 47 2 891 5 3 
91 27 3 5 4 8 6
3856 14 97 2 
4 7 69 51 3 28 
1 9 3 8 6 2 7 4 5
2 5 8 34 7 6 19 
83 1 42 65 97
52 9 1 7 3 8 64
7 6 4 5 9 82 3 1 

First select a number or an edit function (erase for example) and then click in a box of the sudoku.
 
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