Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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