Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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