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.

 

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

 

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