Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 1 is invalid. The middle left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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