Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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