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Sudoku puzzles irregular (Su Doku)

My database includes 63799 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 6. There is only 1 solution for each puzzle.

For more information check out Wikipedia.

279555 puzzles downloaded.

        1 5
        6  
           
           
  2        
2 3        
Showing puzzle number: 20180
Puzzletype: Symmetrical Sudoku
Startnumbers: 6
Difficulty: Very hard (0)
Solution methods: SiSo SC SB DS FI
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