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october 20 killer
https://www.calcudoku.org/forum/viewtopic.php?f=16&t=987
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Author:  columbus1962  [ Sat Oct 21, 2017 11:16 pm ]
Post subject:  october 20 killer

[confused] Clueless! I got the obvious ones, but am baffled beyond that. Any hints / clues? thanks

Author:  paulv66  [ Sun Oct 22, 2017 12:01 am ]
Post subject:  Re: october 20 killer

columbus1962 wrote:
[confused] Clueless! I got the obvious ones, but am baffled beyond that. Any hints / clues? thanks


Likewise! I was travelling yesterday, which didn't help. But I got nowhere with it. Too late now to worry about it.

Author:  columbus1962  [ Sun Oct 22, 2017 12:49 am ]
Post subject:  Re: october 20 killer

Sheesh, finally got it. If any one else is having trouble, keep working the center 3 columns, especially the 11 box at the bottom. In combination with the row 4 squares which have to equal 12, the center grid squares which have to equal 15, and what's left over goes in column 4, first 3 rows, you can eventually (3 days in my case!) figure out the 11 box.

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