Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 7 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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