Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 9 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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