Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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