In front of a lower level sudoku, but still unsolved

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In front of a lower level sudoku, but still unsolved

Postby Maria » Wed Apr 13, 2011 8:56 pm

What is the next move and why? The book says it should be solved by loops.

Code: Select all
1  58      4   | 6  9   2   | 3         58        7
 3  2569  259 | 8  7   4   | 1569    1569     15
 7  689    89  | 5  1   3   | 4689    2          48
---------------+-----------+----------------------------
 4  239    29  | 1   5   7  |  28      38        6
 5  23      6   | 4   8   9  |  7        13        12
 8  1        7  | 3    2   6  | 45       45        9
---------------+-----------+----------------------------
 6   578    3  | 27  4   1  |  2589    589      258
 2   458    1  | 9    6   58|  458      7         3
 9   47      58| 27  3   58|  124568  14568  12458


Let's see how we can go ahead.
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Re: In front of a lower level sudoku, but still unsolved

Postby JasonLion » Wed Apr 13, 2011 9:12 pm

There is a naked pair in row 9. In addition to that that I see a Finned (now)/Sashimi(soon) X-Wing. Those two plus a locked candidate will give you another naked pair and then it is singles from there.
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