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Need help with Kakuro

 
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Need help with Kakuro - 4/20/2019 9:20:33 AM   
JohnWK

 

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Joined: 4/20/2019
From: Australia
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Who can help me solve this Kakuro? It is number 15 from the free hard starters. Have been looking at it for ages but can’t see the way out.
Thanks,
John





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< Message edited by JohnWK -- 4/25/2019 1:35:54 AM >
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RE: Need help with Kakuro - 4/25/2019 1:25:29 AM   
Ahlyis

 

Posts: 198
Joined: 12/30/2009
From: United States
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Bad logic on my part. Post edited. Let me look some more...

< Message edited by Ahlyis -- 4/25/2019 1:28:46 AM >

(in reply to JohnWK)
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RE: Need help with Kakuro - 4/25/2019 7:27:45 PM   
Ahlyis

 

Posts: 198
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From: United States
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First, a minor piece.

You can eliminate the 2's from the last row, columns 5 and 6. No matter which way they go, the 2 will have to be in either column 1 or 3.

Now, for something better.

The top of column 3 is 26 down. The bottom 2 digits cannot be 3 and 5. Not just because it would make it impossible to determine the order between them and the 3-5 in column 2 (which I do not accept as valid logic for an elimination). But if you put in the 3 and 5, in either order, that puts a 1 at the third position. Tracing that out, you can fill in a ton of numbers, but you eventually end up with row 5, 33 across, having a 1, 2, 3, 4 and 5. There is no way to make the 33 with all of those. Therefore you can eliminate the 3 and 5 as possibles for the bottom 2 positions of the 26 down in column 3.

That leaves you with either 2-4 or 2-6 and whichever it is, the 2 must be the bottom number.

Knowing that the 4th position must be 4 or 6 eliminates the 3 as a possible starting number for row 4, 32 across.

Hope that helps.

(in reply to Ahlyis)
Post #: 3
RE: Need help with Kakuro - 4/25/2019 7:48:31 PM   
Ahlyis

 

Posts: 198
Joined: 12/30/2009
From: United States
Status: offline
With the previous in place. Take a look at row 4, 17 across. If you put in the 9 you can fill in a bunch of numbers and eventually end up with an impossible situation at the intersection of row 5 and column 5 (or possibly elsewhere).

I'll stop with that unless you ask for more. :)

(in reply to Ahlyis)
Post #: 4
RE: Need help with Kakuro - 4/26/2019 9:28:04 AM   
JohnWK

 

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Joined: 4/20/2019
From: Australia
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Hi Ahlyis, thanks for your help in pointing me in the right direction!

(in reply to Ahlyis)
Post #: 5
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