Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 9 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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