can someone help with next step in this sudoku

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can someone help with next step in this sudoku

Postby pekki » Wed Dec 18, 2013 1:57 pm

. . . | 3 . .| . . .
. . . | 8 9 1| 2 . 5
. . 8 | 4 . . | . . .
------+-------+------
4 . 1 | . . 8 | . 6 9
9 . . | 1 4 6 | . . .
. 8 . | . . 9 | 1 . .
------+-------+------
2 1 4 | 5 8 3| 6 9 7
5 3 9 | 6 . . | 4 . 8
8 6 7 | 9 . 4 | 5 3 .
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Re: can someone help with next step in this sudoku

Postby JasonLion » Wed Dec 18, 2013 10:26 pm

Start filling in the pencil marks. The fist several moves are all candidates which erase pencil marks without filling in a cell directly. I also see a naked pair (which also requires pencil makes) and then singles.
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