Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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