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  Topic: rh121411
Asellus

Replies: 18
Views: 7414

PostForum: Other puzzles   Posted: Sun Dec 18, 2011 4:33 am   Subject: rh121411
Asellus, had I expected a cynical response, I wouldn't have bothered to answer your question.
Not cynical... a failed attempt, it seems, at lighthearted humor. If you felt ridiculed, I apologize. T ...
  Topic: rh121411
Asellus

Replies: 18
Views: 7414

PostForum: Other puzzles   Posted: Sat Dec 17, 2011 11:41 am   Subject: rh121411
If you prefer a Boolean outlook of the AIC, there is little difference.
Ah... then I definitely prefer the Boolean outlook, with the sky being the limit on the nature of the objects on either end of ...
  Topic: rh121411
Asellus

Replies: 18
Views: 7414

PostForum: Other puzzles   Posted: Fri Dec 16, 2011 11:46 pm   Subject: rh121411
Just to satisfy my curiosity... Why would someone consider it fine to notate a locked set object on one end of a strong inference but not on one end of a weak inference? Logically, both make sense: ...
  Topic: Puzzle 11/08/13: ~ XY
Asellus

Replies: 16
Views: 21960

PostForum: Puzzles by daj   Posted: Tue Aug 16, 2011 9:45 pm   Subject: Puzzle 11/08/13: ~ XY
The puzzle of this thread has all sorts of opportunities for the transport of wing pincers for those who want to practice such things.

Take, for instance, the 246 XYZ-Wing in boxes 3 and 6. The gr ...
  Topic: Numerical phenomena for each row and column
Asellus

Replies: 15
Views: 15065

PostForum: General discussion   Posted: Mon Jun 27, 2011 9:50 am   Subject: Numerical phenomena for each row and column
Sounds like it might be what is referred to as Braid Analysis, also perhaps called "moving pairs" or something like that. I can't recall the details other than it had to do with certain pat ...
  Topic: Sue de Coq
Asellus

Replies: 20
Views: 49617

PostForum: Solving techniques, and terminology   Posted: Wed Jun 15, 2011 4:39 pm   Subject: Sue de Coq
I was traveling this past month so didn't see this thread. As someone who occasionally spots and utilizes Sue de Coq, I would quibble only slightly with the definition above as being over-determined, ...
  Topic: A tough Menneske
Asellus

Replies: 16
Views: 8515

PostForum: Other puzzles   Posted: Sun May 15, 2011 11:00 am   Subject: A tough Menneske
Keith,

Your "Inverse Finned Pair", besides being a continuous AIC loop, is once again a Sue de Coq (4589 in r7c567|r9c4). Besides eliminating <5> in r9c5, it eliminates <8> i ...
  Topic: Free Press May 6, 2011
Asellus

Replies: 3
Views: 3243

PostForum: Other puzzles   Posted: Sat May 07, 2011 4:18 am   Subject: Free Press May 6, 2011
Due to the ER in box 4, that 279 XY-Wing eliminates <2> from r5c9 as well as from r4c2 thus accomplishing the same as the W-Wing.
  Topic: Helmut Apr 09 Advanced
Asellus

Replies: 26
Views: 12864

PostForum: Other puzzles   Posted: Sun May 01, 2011 9:21 am   Subject: Helmut Apr 09 Advanced
I suspect that all of these transported XYZ-wings are loops, since the pincered cell must be in the same house as two of the others in the chain.
In my experience, transported "XYZ-Wing" pi ...
  Topic: Helmut Apr 09 Advanced
Asellus

Replies: 26
Views: 12864

PostForum: Other puzzles   Posted: Sat Apr 30, 2011 10:22 pm   Subject: Helmut Apr 09 Advanced
Marty's solution is also a closed loop and makes an additional elimination:
159ALS[(1)r1c68=(5)r1c6] - (5=1)r5c6 - (1)r5c5=(1)r1c5 - Loop; r1c29<>1|r2c6<>5

Note that it would also elim ...
  Topic: Free Press April 28, 2011 (Thursday)
Asellus

Replies: 14
Views: 7247

PostForum: Other puzzles   Posted: Sat Apr 30, 2011 3:44 am   Subject: Free Press April 28, 2011 (Thursday)
Question for ronk: Do these oddagons occur in true near-BUG grids or only, as here, in predominantly bivalue grids which are not capable of becoming BUGs?
  Topic: Rambling: UR with a Chain Segment
Asellus

Replies: 4
Views: 2709

PostForum: Puzzles by daj   Posted: Sun Apr 24, 2011 11:48 pm   Subject: Rambling: UR with a Chain Segment
It's even easier to see as an ER (or conjugate pair) in box 2 resulting in r1c3<>6. (Same as Peterj again.)

Or, you could state the external UR inference as (6)r13c2=(6)r1c6 and get r1c3< ...
  Topic: Not just a shortcut? Shared peers
Asellus

Replies: 1
Views: 9707

PostForum: Solving techniques, and terminology   Posted: Sun Apr 24, 2011 1:46 am   Subject: Not just a shortcut? Shared peers
It is basically APE. It can also be viewed as a pair of ALS eliminations:
(6=9)r1c3 - ALSr1b3|r3c9[(9)r1c8=(6)r1c78]; r1c5<>6
and
(3=2)r3c9 - ALSr1c3789[(2=3)r1c789]; r2c8<>3

Perhap ...
  Topic: Daily Sudoku Competition for Apr 15
Asellus

Replies: 11
Views: 8761

PostForum: Other puzzles   Posted: Wed Apr 20, 2011 9:43 am   Subject: Daily Sudoku Competition for Apr 15
It is multi-coloring for the overall AIC, so I find these statements confusing. IOW r8c3 might ultimately be neither <2> nor <1>.
Yes, of course. (Or better, r8c3 cannot be BOTH <2> ...
  Topic: Daily Sudoku Competition for Apr 15
Asellus

Replies: 11
Views: 8761

PostForum: Other puzzles   Posted: Tue Apr 19, 2011 3:13 pm   Subject: Daily Sudoku Competition for Apr 15
Maybe this is what Asellus meant by "a little coloring". These strong links caught his attention as well, maybe.
Actually, I meant coloring, starting with <2>s:
+-----------------+-- ...
  Topic: Free Press April 15, 2011
Asellus

Replies: 3
Views: 3559

PostForum: Other puzzles   Posted: Tue Apr 19, 2011 3:45 am   Subject: Free Press April 15, 2011
There is a 12356 Sue de Coq in b5 and c5 that removes <5> from r56c4 and r6c6. It doesn't solve the puzzle, but is interesting.
  Topic: Daily Sudoku Competition for Apr 15
Asellus

Replies: 11
Views: 8761

PostForum: Other puzzles   Posted: Tue Apr 19, 2011 2:58 am   Subject: Daily Sudoku Competition for Apr 15
A little coloring led quickly to:
(3=1)r2c1 - (1)r8c1=(1-2)r8c3=(2)r9c2 - (2=3)r5c2; r12c2|r46c1<>3
  Topic: Puzzle 11/04/11: ~ Difficult
Asellus

Replies: 8
Views: 4581

PostForum: Puzzles by daj   Posted: Tue Apr 12, 2011 6:48 pm   Subject: Puzzle 11/04/11: ~ Difficult
It can be boiled down rather elegantly to:
XYWing[(6)r2c6=(6)r3c1] - Skyscraper[(6)r3c2=(6)r1c7]; r1c146|r2c8|r3c68<>6
  Topic: Free Press April 8, 2011
Asellus

Replies: 5
Views: 4290

PostForum: Other puzzles   Posted: Sun Apr 10, 2011 4:28 am   Subject: Free Press April 8, 2011
The <2>s also provide a Sashimi X-Wing (or grouped Skyscraper) in c36.
  Topic: Aha! Slow Learner
Asellus

Replies: 14
Views: 9810

PostForum: Other puzzles   Posted: Sun Apr 03, 2011 3:32 pm   Subject: Aha! Slow Learner
Within a continuous loop, the non-linking digits of an ALS also cause eliminations. Moreover, only one of the ALS linking digits is ultimately true, so the ALS may also be said to "become conjuga ...
 
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