Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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