Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 7 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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