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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.

50198910 puzzles downloaded.

2     7   1     5
                 
1 5   4 3 2   6 7
6   3 8 1   5   4
    9 3   5 6    
7   5   4 6 3   1
3 7   1 8 9   5 6
                 
8     2   4     9
Showing puzzle number: 6554212
Puzzletype: Symmetrical Sudoku
Startnumbers: 38
Difficulty: Super easy (0)
Solution methods: SiSo
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