Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 7 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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