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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.

686281 puzzles downloaded.

  1 3 5 4      
    4   5     1
4             3
  5 6   7      
      4   3 6  
3             7
5     6   7    
      7 6 5 8  
Showing puzzle number: 3150
Puzzletype: Symmetrical Sudoku
Startnumbers: 24
Difficulty: Very hard (0)
Solution methods: SiSo SC SB FI
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