THIS is W-wing/ring from 2007 not something New at all.

http://forum.enjoysudoku.com/two-definitions-of-w-wing-terminology-question-t6452.html

i tried to have you to implement all the named wings/rings of A.I.C methods years ago:

Split wing, L{1,2,3} W, M{2,3}, Hybrid(1,2,3} - Wings / Rings

{single chain}
n X ERi, rec't Kites, dual ER etc

your solver is Niceloops based and struggles to replicate them as many of the named chains have External Eliminations ie not Singular cell{s} contradictions.

where these named as niceloops are DNL inwhich it takes a collection of DNL to replicate the 1 a.i.c.

same applies to A.I.C rings which are replicate in appearance by CNL however they have internal and external Eliminations. Meaning it takes many CNL / or DNL to replicated all the eliminations of the 1 move.

A direct link to how some of the named methods from years past are detected.

http://forum.enjoysudoku.com/named-chains-wings-rings-structure-for-i-ding-in-code-t42435.html

beyond flustered:
http://forum.enjoysudoku.com/post266297.html#p266297


strmckr

is it please perhaps possible to give us some examples that do not match the bonus eliminations. thanks .

I name them Timberlake pairs, he mentend them in his videos. They can be every where.