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Jul 17 VH

 
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Clement



Joined: 24 Apr 2006
Posts: 677
Location: Dar es Salaam Tanzania

PostPosted: Sun Jul 17, 2011 8:11 am    Post subject: Jul 17 VH Reply with quote

W-wing 45 with strong link 5 in col 7 setting r8c4<>4 solves it.
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hughwill



Joined: 05 Apr 2010
Posts: 196
Location: Birmingham UK

PostPosted: Sun Jul 17, 2011 10:19 am    Post subject: Reply with quote

And a double 459 XY Wing based on R7C6 and R8C7 sorting the C2 45 pair. Easy like a Sunday morning (for the Brits out there old enough to remember...)
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kuskey



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

PostPosted: Sun Jul 17, 2011 7:39 pm    Post subject: Jul 17 VH Reply with quote

Another version of a Sunday drive.

1.An x-wing using 5s in c36 setting r2c4 and r4c1<>5 revealing
2.a 139 xyz-wing centered at r2c4 setting r2c5<>1 revealing
3.a 459 xy-wing pivot at r8c4 setting r6c7<>5 for the win.
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Marty R.



Joined: 12 Feb 2006
Posts: 5160
Location: Rochester, NY, USA

PostPosted: Mon Jul 18, 2011 1:15 am    Post subject: Reply with quote

I didn't see a solution using just the usual VH moves. The W-Wing on 45 did it. An X-Wing on 5 and a 139 XYZ-Wing weren't enough so I resorted to a chain to get rid of a couple of 1s.
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