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FP February 6th.

 
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wapati



Joined: 10 Jun 2008
Posts: 472
Location: Brampton, Ontario, Canada.
PostPosted: Fri Feb 06, 2009 4:04 pm    Post subject: FP February 6th. Reply with quote
Code:
. . .|. . .|. 1 .
5 . .|. . .|. . 4
. . 6|. . 2|8 . .
-----+-----+-----
. . 8|2 . .|4 . 3
. . .|1 . 6|. . .
4 . 7|. . 8|1 . .
-----+-----+-----
. . 9|6 . .|. . .
8 . .|. 1 .|. . .
. 2 .|. 3 .|. . 6


I couldn't find an "easier" way than using a skyscraper or 2, and an ER.
xyzs pop up in lots of places, too. Smile
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storm_norm



Joined: 18 Oct 2007
Posts: 1741
PostPosted: Sat Feb 07, 2009 6:37 am    Post subject: Reply with quote
after some long stares...
it came down to 5,7,9
Code:
.------------------.------------------.------------------.
| 29    4789  24   | 4579  68    3    | 26    1     579  |
| 5     3789  23   | 79    68    1    | 236   2379  4    |
| 1     3479  6    | 4579  579   2    | 8     3579  579  |
:------------------+------------------+------------------:
| 6     1     8    | 2     579   579  | 4     59    3    |
| 29    359   235  | 1     4     6    | 579   579   8    |
| 4     59    7    | 3     59    8    | 1     6     2    |
:------------------+------------------+------------------:
| 3     45    9    | 6     2     457  | 57    8     1    |
| 8     6     45   | 579   1     4579 | 23    23    579  |
| 7     2     1    | 8     3     59   | 59    4     6    |
'------------------'------------------'------------------'

(5)r8c3 = (5)r7c2 - (5)r6c2 = (5)r6c5 - (5)r3c5 = (5)r13c4; r8c4 <> 5
then two naked pairs, and a intersection elimination
(7)r2c4 = (7)r8c4 - (7)r8c9 = (7)r13c9; r2c8 <> 7
(9)r2c4 = (9)r8c4 - (9)r8c9 = (9)r13c9; r2c8 <> 9
done.
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Mon Feb 09, 2009 2:04 pm    Post subject: Reply with quote
Once again I took the long but enjoyable trip.

UR<23> with a strong ling in each digit,
W-wing<59>,
multi-coloring on <7>,
ER<9>,
xy-wing <239> with pivot <23> inr2c3,
xyz-wing with pivot <579> in r3c9, and finally
coloring on <9>.

Ted
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