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  Topic: sept 13
lkmckin

Replies: 20
Views: 79482

PostForum: Daily Sudoku puzzles   Posted: Thu Sep 13, 2007 6:06 pm   Subject: sept 13
You can use a finned fish on [2] in cols 1 and 7 to eliminate [2] from r2c2.

You can use an XY wing to eliminate [5] from r2c1.

Now, r2c7 is forced to [5] and the rest comes easily after that.
...
  Topic: sept 12
lkmckin

Replies: 2
Views: 17313

PostForum: Daily Sudoku puzzles   Posted: Thu Sep 13, 2007 5:58 pm   Subject: sept 12
DUH.

Thanks. It's amazing how long you can stare at something and miss the obvious.
  Topic: sept 12
lkmckin

Replies: 2
Views: 17313

PostForum: Daily Sudoku puzzles   Posted: Thu Sep 13, 2007 3:33 pm   Subject: sept 12
Can't seem to make progress on this. I finally found an XY chain that solves it, but I'm starting to dislike those (seems a bit like guessing) and I wonder what the simplest way to solve this is. Ca ...
  Topic: Mepham 6/17 help please
lkmckin

Replies: 2
Views: 15029

PostForum: Other puzzles   Posted: Fri Jul 20, 2007 3:47 pm   Subject: Mepham 6/17 help please
Thanks for the obvious solution I couldn't see. I finally got it through brute force (lots of xy chains), but of course, your solution was much better.
  Topic: Mepham 6/17 help please
lkmckin

Replies: 2
Views: 15029

PostForum: Other puzzles   Posted: Thu Jul 19, 2007 11:34 pm   Subject: Mepham 6/17 help please
Stuck at this point. Tired of staring at it. Please ease my mind.


+------------+----------------+------------+
| 2568 56 3 | 58 258 4 | 1 9 7 |
| 28 7 18 | 38 1289 139 | 5 4 ...
  Topic: 22 Jun 07 Five Stars
lkmckin

Replies: 17
Views: 45448

PostForum: Other puzzles   Posted: Mon Jun 25, 2007 4:56 pm   Subject: 22 Jun 07 Five Stars
Asellus,

Thanks for the help. I was over 2 hrs into this mess.

I had found all the x-wings, and I used the UR to eliminate 5 from R7C4, R7C6, and R8C3, since R7C4 or C6 must be 2. However, sin ...
  Topic: 22 Jun 07 Five Stars
lkmckin

Replies: 17
Views: 45448

PostForum: Other puzzles   Posted: Mon Jun 25, 2007 2:43 am   Subject: Anyone with details on the solution?
I eventually resorted to a UR, which I consider cheating, and still didn't solve this B%$#. Here's my progress. Any help?

+-------+-------+-------+
| . 2 . | 4 . 1 | 9 . 6 |
| 9 4 . | 6 8 . | . ...
  Topic: LA times diabolical
lkmckin

Replies: 7
Views: 32776

PostForum: Other puzzles   Posted: Tue May 29, 2007 9:09 pm   Subject: LA times diabolical
Very interesting. Kind of an bifurcation of naked pairs. Where does the term 2SDG(Q?) Sue de Coq come from?

Of note is that the puzzle grade goes from "too hard" to "easy" aft ...
  Topic: LA times diabolical
lkmckin

Replies: 7
Views: 32776

PostForum: Other puzzles   Posted: Fri May 25, 2007 9:38 pm   Subject: LA times diabolical
Hi, new here. I've been trying all the VH puzzles on the site, and have gotten pretty good at X-wing, XY-wing, swordfish, etc.

But todays LA Times puzzle is a real stumper. For starters, the grad ...
 
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