Langer's Sudoku Assistant

Invalid Sudoku!

Row 2 is invalid. Column 3 is invalid. The top left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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