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 one more sample difficult puzzle 
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Posted on: Thu Sep 27, 2012 12:21 am




Posts: 3296
Joined: Thu May 12, 2011 11:58 pm
Post one more sample difficult puzzle
One more test puzzle before I generate October's Killer Sudokus...
How is this one?

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for my reference: 139-42, si 8, np 960


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Posted on: Thu Sep 27, 2012 3:33 pm




Posts: 855
Joined: Fri May 13, 2011 6:51 pm
Post Re: one more sample difficult puzzle
pnm wrote:
One more test puzzle before I generate October's Killer Sudokus...
How is this one?

...


Very interesting, difficult (probably due not only to the three big cages, 33, 30 and 29, but also to that particular distribution, being the top left house or nonet 1 difficult because of the three cages very similar in weight), solution unique, very amused specially in the first steps (solved working first in the three rightmost columns and bottom row, the three leftmost columns at the end) though the whole puzzle must be carefully analyzed.


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Posted on: Thu Sep 27, 2012 4:10 pm




Posts: 3296
Joined: Thu May 12, 2011 11:58 pm
Post Re: one more sample difficult puzzle
clm wrote:
Very interesting, difficult (probably due not only to the three big cages, 33, 30 and 29, but also to that particular distribution, being the top left house or nonet 1 difficult because of the three cages very similar in weight), solution unique, very amused specially in the first steps (solved working first in the three rightmost columns and bottom row, the three
leftmost columns at the end) though the whole puzzle must be carefully analyzed.

Yes, I liked it too.
The difficult Killer Sudokus on the site will be of this "style" starting October 1st.

I'll now also generate a set for the book.

Patrick


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