will a opening NOT be a book move 🤷♀️🤷♀️🤷♀️


https://www.chess.com/forum/view/chess-openings/what-is-considered-in-book
See post 2 on the thread address i copied above. Most youngsters don't even know where the concept of "book move" came from. It is not some random term tossed out there, or certain openings not being book moves.
It dates back to before we had the Internet. Yes, the internet only existed since 1993 and it was not widely used by non-computer scientists until 1995, and even then, you didn't have all these dumb sites that have made the world dumber like Tik Tok or Snap Chat or Instagram or Facebook. You literally just had Webpages, like Amazon.com, which back then only sold books.
They used to have to print 5 large volumes, 400 to 500 pages each, called the Encyclopedia of Chess Openings (where the term ECO comes from and the 500 ECO codes, like C43, which is the Petroff with 3.d4.
They each had a different color cover - A was Green, B was Yellow, C was Blue, D was Red, and E was Orange. I actually still have them collecting dust in my house.
A covers:
All moves other than 1.e4 and 1.d4
1.d4 and now NOT 1...Nf6 or 1...d5
1.d4 Nf6 and now not 2.c4
1.d4 Nf6 2.c4 and now all Old Indian and Benoni/Benko lines
B covers:
1.e4 and now everything that is NOT 1...e5 or 1...e6
C covers:
1.e4 e5 and 1.e4 e6
D covers:
All 1.d4 d5
Grunfeld Defense
E covers:
All 1.d4 Nf6 2.c4 e6 (Catalan, Bogo, QID, NID)
King's Indian Defense.

Do you know what Rude even means? I gave you the background of where the term "book moves" comes from and all you know how to say is "rude"?
GROW UP! There was nothing Rude about post 2 at all.
So many snowflakes on the internet these days. We try to help them out with facts and history and all they do is say everything is "rude" because the answer doesn't match the exact response they were expecting. Like they think this is some really dumb platform like Tik Tok and they just want a bunch of smileys and thumbs up to make their sensitive minds feel better. PA-LEEZ!
SMH!