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Sudoku puzzles irregular (Su Doku)

My database includes 1031 puzzles for the moment and I'm constantly generating more.

Rules: Fill in the grid so that every row, every column, and every box contains the digits 1 through 12. There is only 1 solution for each puzzle.

For more information check out Wikipedia.

751948 puzzles downloaded.

9 8 10   1     5   4    
6 11       1 2 9   5   3
5 1         4     11    
      9       4       6
    12 8       1 7      
7     1 12 11     2      
      2     5 12 11     1
      7 8       6 9    
11       9       10      
    5     3         10 9
10   4   2 6 8       7 11
    11   4     7   6 1 8
Showing puzzle number: 801
Puzzletype: Symmetrical Sudoku
Startnumbers: 58
Difficulty: Super easy (0)
Solution methods: SiSo
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