Langer's Sudoku Assistant

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

 

Start Over

Take any Sudoku puzzle you are having trouble with -- or any one at all -- and enter the initial values. With each entry the proscribed options are eliminated for you

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