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Sudoku puzzles (Su Doku)

My database includes 6913752 puzzles for the moment and I'm constantly generating more.

Rules: Fill in the grid so that every row, every column, and every 3x3 box contains the digits 1 through 9. There is only 1 solution for each puzzle.

For more information check out Wikipedia.

40809959 puzzles downloaded.

3     5   2     1
    8 6   3 2    
9 2   1   4   7 5
1 8 3       5 9 4
                 
4 9 5       6 2 7
6 4   2   1   3 8
    2 8   9 4    
8     4   7     2
Showing puzzle number: 2016227
Puzzletype: Symmetrical Sudoku
Startnumbers: 40
Difficulty: Super easy (0)
Solution methods: SiSo
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