Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 8 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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