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W-wings, and stuff.

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wapati

Joined: 10 Jun 2008
Posts: 472
Location: Brampton, Ontario, Canada.

Posted: Mon Jul 06, 2009 10:53 am Post subject: W-wings, and stuff.

Code:

6 . 5|. . .|7 . .
. . .|5 2 7|. . 4
. . .|6 . .|. . .
-----+-----+-----
8 . .|3 . 1|5 . .
. . 9|. 7 .|6 . .
. . 7|2 . 6|. . 1
-----+-----+-----
. . .|. . 4|. . .
9 . .|8 3 2|. . .
. . 3|. . .|9 . 6

storm_norm

Joined: 18 Oct 2007
Posts: 1741

Posted: Mon Jul 06, 2009 9:04 pm Post subject:

Code:

.------------------.------------------.------------------.
| 6 23 5 | 1 4 39 | 7 238 2389 |
|*13 9 8 | 5 2 7 |*13 6 4 |
| 1237 1237 4 | 6 8 39 | 123 5 239 |
:------------------+------------------+------------------:
| 8 26 26 | 3 9 1 | 5 4 7 |
| 15 15 9 | 4 7 8 | 6 23 23 |
|*34 34 7 | 2 5 6 | 8 9 1 |
:------------------+------------------+------------------:
| 257 2578 12 | 9 6 4 |*23 17 238 |
| 9 67 16 | 8 3 2 | 4 17 5 |
|*24 248 3 | 7 1 5 | 9 28 6 |
'------------------'------------------'------------------'

(2=4)rc91 - (4=3)r6c1 - (3)r2c1 = (3)r2c7 - (3=2)r7c7; r9c8 <> 2
this xy-chain is associated with exactly the same cells
24-43-31-13-32

arkietech

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

Posted: Mon Jul 06, 2009 9:31 pm Post subject:

only 1 w-wing needed W-Wing: 2/3 in r5c8,r7c7

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