The New Sudoku Players' Forum

[Anette]

This one was really difficult.

But after following tso's advice, look at the 1's. If you look at columns 3,4,6 and 7, you can see that they have candidate 1 only for rows 1,3,6 and 9.

This allows you to eliminate 1's in rows 1,3,6 and 9 for all other columns. After having made that elimination, you can place a 1. From there you can continue.

There is a similar pattern in 5's, columns 2,8 and 9. But that one only gets you one step ahead.

[tso]

I corrected my typo in my original post -- sorry about that. However, after following all the clues upto and including the x-wing, there is nothing but hidden and naked singles.

-- Only one place for a "1" in box 4,
-- Row 9 column 1 can has only one possibility, etc.

[pch]

Thanks, tso - following your advice, I did complete the puzzle on Monday but my userid had disappeared and I have had to re-register.

[Anette]

I missed eliminating one candidate based on the X-wing - no wonder it was difficult. Thanks tso for pointing that out!

Sorry for the confusing advice!

/Anette