Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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