Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 8 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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