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Code: Select all

abX--------abZ
 |     a    |
 | b      a |
 |     b    |
abY--------abW

abz <> B
aby <> A

StrmCkr wrote:

Code: Select all

abX--------abZ
 |     a    |
 | b      a |
 |     b    |
abY--------abW

abz <> B
aby <> A

That's probably how most would program it, but it's simultaneously merely two of these.

http://forum.enjoysudoku.com/post26448.html#p26448hereMike Barker wrote:--- UR+4C/3SL: the links with equal labels share a node => "b" can be removed from "abZ"

Code: Select all

abX-----abZ
     a   |
        a|
     b   |
abY-----abW

true that the above is replicable by two applications of that type i figured id post it for completeness as the singular move replicates two...