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june 16 hard

 
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samsclub



Joined: 10 Sep 2012
Posts: 1
PostPosted: Mon Sep 10, 2012 7:16 pm    Post subject: june 16 hard Reply with quote
i just graduated to hard and am doing the june 16 2012 hard puzzle. for all the pundits that may have some free time why is the center block top middle 2? i believe its C2B5
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Pat



Joined: 23 Feb 2010
Posts: 207
PostPosted: Thu Sep 13, 2012 2:09 pm    Post subject: Reply with quote
samsclub wrote:
why is the center block top middle 2?
      centre box = b5,
      its top row is r4
      and the cell you're indicating is r4c5
in b2, "hidden" duo {1,7}
--> in b2, the 9 must be in c5
--> r4c5 not 9
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