Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 4 is invalid. The bottom left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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