| Ruud Site Admin
| Joined: 17 Sep 2005 | Posts: 708 | : | Location: Netherlands | Items |
|
Posted: Wed Oct 05, 2005 11:17 am Post subject: Is there a name for this configuration? |
|
|
I came across a puzzle that contains the following configuration:
Code: | . . .|. . .
. a .|. . x
. . .|. . .
-----+-----
. . .|. . c
. A .|b . .
. . .|. . d |
All cells shown are candidates for a certain digit.
Note that there is a conjugate pair a-A
Deductions:
- when a contains the digit, x will be eliminated.
- when A contains the digit, b will be eliminated, forcing c-d to a locked pair, which in turn will eliminate x.
Therefore, x can never contain the digit and can be eliminated.
My solver eliminated x based on its templates, and I used manual coloring to come to the same conclusion.
The reasoning is very similar to that of remote locked pairs, but with this candidate b linking the 2 pairs.
Is there a name for this pattern? Does it deserve a name? |
|