Langer's Sudoku Assistant

Invalid Sudoku!

Row 2 is invalid. Column 7 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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