Langer's Sudoku Assistant

Invalid Sudoku!

Row 4 is invalid. Column 8 is invalid. Go back and make a different choice.

 

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

 

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