Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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