Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 2 is invalid. The bottom left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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