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  Topic: Almost Locked Candidates
SirDave

Replies: 13
Views: 13476

PostForum: Solving Techniques & Tips   Posted: Sun Mar 25, 2007 2:49 pm   Subject: Almost Locked Candidates
Slightly off-topic, but in that position, isn't there a much more direct implication loop to set r5c1=8 based on conjugates pairs - X-chain or Simple Colouring?

r5c1<>8 -> r7c1=8 -> r8c ...
  Topic: Almost Locked Candidates
SirDave

Replies: 13
Views: 13476

PostForum: Solving Techniques & Tips   Posted: Sun Mar 25, 2007 2:04 am   Subject: Almost Locked Candidates
Hi SirDave

This example is a sashimi x-wing/skyscraper on 8's. It's kinda obscured because of the ALS's, but when you check only the 8's you can make the same elimination. I don't know if you tend ...
  Topic: Almost Locked Candidates
SirDave

Replies: 13
Views: 13476

PostForum: Solving Techniques & Tips   Posted: Sat Mar 24, 2007 9:22 pm   Subject: Almost Locked Candidates
An ALC example of an 'Elegant Contradiction'

I'm not a big fan of using contradictions, but if ever there was an example of an 'elegant contradiction', this is it. While checking out various ALSes ...
  Topic: Almost Locked Candidates
SirDave

Replies: 13
Views: 13476

PostForum: Solving Techniques & Tips   Posted: Wed Mar 21, 2007 7:37 pm   Subject: Almost Locked Candidates
Ron, these are terrific posts on ALSes, both here and in the 'Curious New Move' thread. Your interest in them is mirroring mine. I really think that ALSes have been neglected and along with Myth's AIC ...
  Topic: Sue-de-Coq
SirDave

Replies: 5
Views: 13117

PostForum: Solving Guide & Glossary   Posted: Tue Jan 23, 2007 8:57 pm   Subject: Sue-de-Coq
Morgan, you're right about Ruud. He has the ability to cut thru the academic drivel and cut to the chase in a manner that's easy to understand. Perhaps he is too humble to have given you this referenc ...
  Topic: Should I change the difficulty of the Daily Nightmare?
SirDave

Replies: 8
Views: 11204

PostForum: Daily Sudoku Nightmare & Archive   Posted: Wed Jan 03, 2007 6:13 pm   Subject: Should I change the difficulty of the Daily Nightmare?
I think this is a great idea. First of all, the grids earlier in the week will be good for practice in recognizing patterns and second, it's nice to have fairly difficult Sudokus that don't necessaril ...
 
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