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Sudoku puzzles (Su Doku)

My database includes 300320 puzzles for the moment and I'm constantly generating more.

Rules: Fill in the grid so that every row, every column, and every 2x4 box contains the digits 1 through 8. There is only 1 solution for each puzzle.

For more information check out Wikipedia.

853225 puzzles downloaded.

6 1            
5   7       2  
3 5            
2   1 8     6  
  7     2 3   8
            1 5
  6       1   4
            5 6
Showing puzzle number: 96156
Puzzletype: Symmetrical Sudoku
Startnumbers: 22
Difficulty: Very hard (0)
Solution methods: SiSo SC SB DS FI
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