denis_berthier (2015.Jun.17) wrote:
In rows 3,6 v can only be in columns 3,6I don't know the origin of the names.
conclusion: in columns 3,6 v can only be in rows 3,6 ==> (2, 6) ≠ v
ancient history —
Pappocom (2005.Mar.30) wrote:
The technique you're looking for is one which I call "X-Wings"
— named for the Star Wars fighters.
That may not help you find it,
but after you've found it you will know immediately why I call it that.