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 7x7 difficult 18 Jan 2016 aka 2016-01-18/7/2 
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Posted on: Mon Jan 18, 2016 9:30 am




Posts: 3
Joined: Mon Feb 27, 2012 1:50 am
Post 7x7 difficult 18 Jan 2016 aka 2016-01-18/7/2
Dear All,
Happy New Year.
Started this 7x7 fine: Noticed that 125 = 3^5
So most of the cages for row 1 and column a can be pencilled in.
The '5 mod' at b4 is either (5,6) or (5,7)
After that I am stuck.
I can see that the cages 11+ at b2 and 10+ at c3 m u st both contain either a 6 or a 7.
But I just can't get any further.
Tips? Suggestions? Help!
Many thanks
EG


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Posted on: Mon Jan 18, 2016 9:53 am




Posts: 2197
Joined: Thu May 12, 2011 11:58 pm
Post Re: 7x7 difficult 18 Jan 2016 aka 2016-01-18/7/2
For reference, and so it's always available, here's the puzzle:

Image


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Posted on: Mon Jan 18, 2016 10:23 am




Posts: 3
Joined: Mon Feb 27, 2012 1:50 am
Post Re: 7x7 difficult 18 Jan 2016 aka 2016-01-18/7/2
Thanks


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Posted on: Mon Jan 18, 2016 11:50 am




Posts: 19
Joined: Fri May 23, 2014 7:25 pm
Post Re: 7x7 difficult 18 Jan 2016 aka 2016-01-18/7/2
* I used the 3- cage at d2;
Which number must be filled in at d2? This in relation to the sum of b3 and g3
With most possible solutions I got stuck quickly.

* 112x cage has few possible solutions


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