Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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