Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 2 is invalid. The bottom left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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