Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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