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Puzzle 10/05/22: (B) VH+

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Sat May 22, 2010 1:47 pm    Post subject: Puzzle 10/05/22: (B) VH+ Reply with quote
Moderate:

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

Play this puzzle online at the Daily Sudoku site
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Sun May 23, 2010 4:42 am    Post subject: Reply with quote
Worked out to be a mini BBDB for me.

Quote:
X-Wing (6)
XY-Wing (691)
Type 1 UR (89)
XY-Wing (691)
W-Wing (89) + pincer transport
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peterj



Joined: 26 Mar 2010
Posts: 974
Location: London, UK
PostPosted: Sun May 23, 2010 8:21 am    Post subject: Reply with quote
Yes, many steps - all close together - fwiw I found I didn't need the x-wing

Quote:
xy-wing(169) r2c9; r6c7<>1
skyscraper(1); r9c8<>1
skscraper(9); r9c2=r2c2-r2c9=r1c8; r9c8<>9
xy-wing(689) r8c7; r9c4<>8
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strmckr



Joined: 18 Aug 2009
Posts: 64
PostPosted: Sun May 23, 2010 8:31 am    Post subject: Reply with quote
after singles and two 1-fish a few moves for me

Quote:
S-wing (type6a) 8/9 9- r7c1 =9= r9c12 -9- r9c4 -8- r9c8 =8= r7c8 -8 => r7c1<>8, r7c8<>9

Skyscraper: 9 in r2c2,r7c1 (connected by r27c9) => r13c1,r9c2<>9
singles to the end.
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