Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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