Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 7 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

5
6
4
1      
       
      9
1      
       
      9
2
3
8
7
3
8
9
4
6
7
5
1
2
7
1
2
3
8
5
4
6
9
8
7
9
4
2
5
6
3
1
2
      3
4      
       
      3
4      
       
6
9
1
7
5
8
6
5
1
8
3
7
2
9
4
2
9
8
9
       
4  5   
       
3
1
       
4  5   
       
6
1
3
5
1
7
6
8
2
4
1
4
6
1
2
8
9
7
3

 

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