Langer's Sudoku Assistant

Invalid Sudoku!

Row 2 is invalid. Go back and make a different choice.

 

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

 

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