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  Topic: Stumped - old krazydad sudoku
CT Yankee

Replies: 8
Views: 38679

PostForum: Other puzzles   Posted: Sun Sep 17, 2006 2:36 am   Subject: Stumped - old krazydad sudoku
OK, I’ve been reading some old posts in the General Discussion area and I think I understand some things a bit better now. When I made my comments about logic and trial and error, I had no idea that e ...
  Topic: I want harder sudokus
CT Yankee

Replies: 10
Views: 57866

PostForum: General discussion   Posted: Fri Sep 15, 2006 10:42 pm   Subject: I want harder sudokus
CT Yankeee Wrote:

I don't know for sure, but I suspect the soduku found here are among the hardest anywhere.

Actually, CT, the puzzles here have a purposefully set difficulty limit. The are solvable ...
  Topic: I want harder sudokus
CT Yankee

Replies: 10
Views: 57866

PostForum: General discussion   Posted: Thu Sep 14, 2006 10:47 pm   Subject: I want harder sudokus
I don't know for sure, but I suspect the soduku found [url=http://krazydad.com/sudoku/]here are among the hardest anywhere.
  Topic: Stumped - old krazydad sudoku
CT Yankee

Replies: 8
Views: 38679

PostForum: Other puzzles   Posted: Thu Sep 14, 2006 12:46 am   Subject: Stumped - old krazydad sudoku
Dave

I am not going to enter into a debate about the meaning of "logic based" other than to say that David’s solution seems excellent to me. Several alternatives are nevertheless available.

If an X ...
  Topic: September 12 Very hard
CT Yankee

Replies: 23
Views: 99459

PostForum: Daily Sudoku puzzles   Posted: Wed Sep 13, 2006 10:59 pm   Subject: September 12 Very hard
I solved this one using basic techniques, and then a Swordfish on the 5s. This is the very first time I have ever had to use a Swordfish! I've been aware of the technique for a long time, and I always ...
  Topic: Stumped - old krazydad sudoku
CT Yankee

Replies: 8
Views: 38679

PostForum: Other puzzles   Posted: Wed Sep 13, 2006 10:41 pm   Subject: Stumped - old krazydad sudoku
Thanks for the reply. Your solution is, as you surmised, right on the border of what I consider to be a logic-based solution, but it does work and I sure don't see any other way to complete the puzzle ...
  Topic: Stumped - old krazydad sudoku
CT Yankee

Replies: 8
Views: 38679

PostForum: Other puzzles   Posted: Tue Sep 12, 2006 10:24 pm   Subject: Stumped - old krazydad sudoku
Hi. I'm having trouble with an old sudoku from the Krazydad site. This one's from Super Tough book 50, and it's just labeled #8 so I don't know when it was originally published... But who cares about ...
  Topic: July 25 Very Hard
CT Yankee

Replies: 10
Views: 44482

PostForum: Daily Sudoku puzzles   Posted: Wed Jul 26, 2006 7:04 am   Subject: Re: July 25 Very Hard
Oops, duplicate post, ignore...
  Topic: July 25 Very Hard
CT Yankee

Replies: 10
Views: 44482

PostForum: Daily Sudoku puzzles   Posted: Wed Jul 26, 2006 7:01 am   Subject: July 25 Very Hard
This was an excellent puzzle! I had to use an X-Wing as well as an XY-Wing to solve it. I'm not certain, but I believe this may be the first puzzle from this site that definitely requires both of thos ...
  Topic: How hard is Evil?
CT Yankee

Replies: 8
Views: 78701

PostForum: General discussion   Posted: Mon Jul 24, 2006 12:03 am   Subject: How hard is Evil?
Thanks for the replies and for all your recommendations. I will definitely be checking out some of those sites.

Hi, Hank! Or are you some other Connecticut Yankee?

No, I'm not Hank. You mean there's ...
  Topic: How hard is Evil?
CT Yankee

Replies: 8
Views: 78701

PostForum: General discussion   Posted: Sat Jul 22, 2006 5:39 pm   Subject: How hard is Evil?
Hi. I was wondering if anyone could point me to some other online sources that have sudoku that are about as hard as the Very Hard puzzles here, or maybe even a bit harder. It’s difficult to compare f ...
 
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