Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 5 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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