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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.

721492 puzzles downloaded.

    9         7 6 11 8  
  2 3     12   9 1     6
      7             1  
      4   7 3         8
8   11     10 7   2      
12         8       5   4
9   12       6         3
      12   6 10     9   1
6         9 5   12      
  1             9      
11     6 7   4     8 10  
  4 2 11 12         3    
Showing puzzle number: 239
Puzzletype: Symmetrical Sudoku
Startnumbers: 52
Difficulty: Super easy (0)
Solution methods: SiSo
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