Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. The middle left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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