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Sept 1 Hard

 
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hughwill



Joined: 05 Apr 2010
Posts: 422
Location: Birmingham UK

PostPosted: Fri Sep 01, 2017 10:16 am    Post subject: Sept 1 Hard Reply with quote

Code:

+----------+---------------+----------+
| 7 15  4  | 15 89    89   | 6  3  2  |
| 9 8   56 | 2  356   35   | 4  1  7  |
| 3 2   16 | 46 146   7    | 8  5  9  |
+----------+---------------+----------+
| 1 46  7  | 8  236   23   | 9  24 5  |
| 5 46  8  | 67 2679  29   | 1  24 3  |
| 2 3   9  | 15 15    4    | 7  8  6  |
+----------+---------------+----------+
| 4 157 3  | 9  12578 1258 | 25 6  18 |
| 8 9   15 | 3  125   6    | 25 7  4  |
| 6 157 2  | 47 14578 158  | 3  9  18 |
+----------+---------------+----------+

Play this puzzle online at the Daily Sudoku site

Am I wrong in thinking that this 'Hard' needs the X wing on 1 r38c35 to
solve it?

Hugh
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ZeroAssoluto



Joined: 05 Feb 2017
Posts: 868
Location: Rimini, Italy

PostPosted: Fri Sep 01, 2017 12:06 pm    Post subject: Reply with quote

Hi Hugh,

if you only want to use basics, you can see that in column 6, number 1 is only in sector 8; when you delete number 1 from r8c5 you can solve it with basics.

Ciao Gianni
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hughwill



Joined: 05 Apr 2010
Posts: 422
Location: Birmingham UK

PostPosted: Sat Sep 02, 2017 8:45 am    Post subject: Reply with quote

ZeroAssoluto wrote:
Hi Hugh,

if you only want to use basics, you can see that in column 6, number 1 is only in sector 8; when you delete number 1 from r8c5 you can solve it with basics.

Ciao Gianni


Sometimes you look and look...and see nothing. Cheers Gianni!
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dongrave



Joined: 06 Mar 2014
Posts: 563

PostPosted: Sat Sep 02, 2017 7:22 pm    Post subject: Reply with quote

hughwill wrote:
ZeroAssoluto wrote:
Hi Hugh,

if you only want to use basics, you can see that in column 6, number 1 is only in sector 8; when you delete number 1 from r8c5 you can solve it with basics.

Ciao Gianni


Sometimes you look and look...and see nothing. Cheers Gianni!


I thought it was just me Hugh. It's frustrating, isn't it? I've been looking at an old VH from the archive all day and I STILL don't see it! ugh...
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arkietech



Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA

PostPosted: Sun Sep 03, 2017 6:25 am    Post subject: Re: Sept 1 Hard Reply with quote

hughwill wrote:
Code:

+----------+---------------+----------+
| 7 15  4  | 15 89    89   | 6  3  2  |
| 9 8   56 | 2  356   35   | 4  1  7  |
| 3 2   16 | 46 146   7    | 8  5  9  |
+----------+---------------+----------+
| 1 46  7  | 8  236   23   | 9  24 5  |
| 5 46  8  | 67 2679  29   | 1  24 3  |
| 2 3   9  | 15 15    4    | 7  8  6  |
+----------+---------------+----------+
| 4 157 3  | 9  12578 1258 | 25 6  18 |
| 8 9   15 | 3  125   6    | 25 7  4  |
| 6 157 2  | 47 14578 158  | 3  9  18 |
+----------+---------------+----------+

Play this puzzle online at the Daily Sudoku site

Am I wrong in thinking that this 'Hard' needs the X wing on 1 r38c35 to
solve it?

Hugh


Check the 1's in col 6
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