and now... what?

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and now... what?

Postby sudokitzy » Wed Nov 18, 2015 10:44 am

Hi

Please, help. What's next move and why?

10x!
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Re: and now... what?

Postby JasonLion » Wed Nov 18, 2015 12:56 pm

Code: Select all
1   8   5   | 2   4   6   | 7   3   9 
2   7   9   | 38  1   38  | 4   5   6 
6   3   4   | 57  57  9   | 8   1   2 
------------+-------------+------------
7   5   3   | 4   8   2   | 9   6   1 
8   9   1   | 356 36  35  | 2   4   7 
4   2   6   | 1   9   7   | 5   8   3 
------------+-------------+------------
3   1   78  | 9   57  58  | 6   2   4 
5   6   27  | 37  23  4   | 1   9   8 
9   4   28  | 68  26  1   | 3   7   5

185246739279.1.456634..9812753482961891...24742619758331.9..62456...419894...1375

I see a BUG+1, http://sudopedia.enjoysudoku.com/Bivalue_Universal_Grave.html.
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Re: and now... what?

Postby sudokitzy » Wed Nov 18, 2015 5:25 pm

Thank you!
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Re: and now... what?

Postby sudokitzy » Tue Nov 24, 2015 10:28 am

Hi, it's me again! :)

Trying to solve an expert sudoku I got stucked here (see photo). It looks very strange. Did I do something wrong?

Thanks!
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Re: and now... what?

Postby JasonLion » Tue Nov 24, 2015 12:41 pm

6.2958..44.8..652995.4.268.3..684952865.294..2495.1.68784163295193245876526897.4.

You are doing just fine.

There are three Sashimi X-Wings available at this point, also called Skyscrapers.

After that there are two fairly easy moves, but then you need a fairly complex technique. I would use a W-Wing. Then singles to the end.
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Re: and now... what?

Postby JC Van Hay » Tue Nov 24, 2015 1:14 pm

L2-Wing : r3c9=7 -> r3c5=3, r2c4=7 or r5c9=7 -> r2c4=7; stte
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Re: and now... what?

Postby Luke » Tue Nov 24, 2015 5:44 pm

Code: Select all
 *--------------------------------------------------*
 | 6    137  2    | 9    5    8    |*13+7 *13  4    |
 | 4    137  8    | 37   137  6    | 5    2    9    |
 | 9    5    17   | 4    137  2    | 6    8    137  |
 |----------------+----------------+----------------|
 | 3    17   17   | 6    8    4    | 9    5    2    |
 | 8    6    5    | 37   2    9    | 4   *13  *13+7 |
 | 2    4    9    | 5    37   1    | 3-7  6    8    |
 |----------------+----------------+----------------|
 | 7    8    4    | 1    6    3    | 2    9    5    |
 | 1    9    3    | 2    4    5    | 8    7    6    |
 | 5    2    6    | 8    9    7    |*13   4   *13   |
 *--------------------------------------------------*

A good puzzle to learn about deadly patterns.
This one is called a Bug-Lite and solves your puzzle at a glance.
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Re: and now... what?

Postby champagne » Tue Nov 24, 2015 6:05 pm

Luke wrote:This one is called a Bug-Lite and solves your puzzle at a glance.

also called a UL in sudoku explainer
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