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Sep 23 VH

 
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kuskey



Joined: 10 Dec 2008
Posts: 127
Location: Pembroke, NH

PostPosted: Mon Sep 23, 2013 5:27 am    Post subject: Sep 23 VH Reply with quote

for 1-steppers, there are two versions of 369 xy wings. There are a couple of unproductive xy wings (for me ) as well an unproductive type 1 ur. With all those bivalue cells floating around there may be some w-wing action as well.
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hughwill



Joined: 05 Apr 2010
Posts: 221
Location: Birmingham UK

PostPosted: Mon Sep 23, 2013 9:27 am    Post subject: Sep 23 VH Reply with quote

After basics:
Code:

+------------+----------+-----------+
| 8   7  69  | 5  69 3  | 2  1 4    |
| 4   2  19  | 19 8  7  | 35 6 35   |
| 156 35 136 | 4  16 2  | 7  9 8    |
+------------+----------+-----------+
| 156 9  4   | 2  13 8  | 35 7 356  |
| 156 35 7   | 19 4  56 | 8  2 3569 |
| 2   8  36  | 7  39 56 | 1  4 3569 |
+------------+----------+-----------+
| 7   6  5   | 8  2  9  | 4  3 1    |
| 9   4  2   | 3  5  1  | 6  8 7    |
| 3   1  8   | 6  7  4  | 9  5 2    |
+------------+----------+-----------+

Play this puzzle online at the Daily Sudoku site

Same solution, but the 'red herring' XY wing and UR do lead to an out.
Couldn't find a W wing though....
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the_lock_man



Joined: 18 Dec 2012
Posts: 10
Location: Portsmarfff, UK

PostPosted: Mon Sep 23, 2013 11:04 am    Post subject: Reply with quote

There is also an XY wing 356, pivot r6c3.
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