were book moves removed

this happened on every move that was supposed to be book for the modern defence: bishop opening

Yeah thats a book move

why does it not show its a book

I tested it It said 1. e4 g6 is a inaccuracy 2. d4 is best and Bg7 is best.

Does playing vs Bots usually show the book move classification? I never play with any assistance so never noticed.

yes, it always has shown book moves as books

OK, should be showing again in Custom Mode with Analysis on. There's another bug identified where the move classifications don't show at all in Assisted.

ok

That's a book move, I see "Modern Defense with..." on my analysis page too.

I'm sure that's the start of "King's Indian Defence,"

This is a known and reported issue, a lot of book moves are no longer showing as "book" but rather excellent or simply good (some inaccuracies)

The OP was about vs Computer only and different.

I think that during a game with a computer with support from the computer's side, it can only suggest moves that you can play. After the game is over and you analyse it, the book moves show up. Just check the key moments in the game review tab.

Bg4 is shown as an innacuracy even in the game review, Even though it is supposed to be a book move

oh wait

this not a beta feature

Just like the ross gambit (1. Nf3 e5) It is unsound so its not the safest so Thats why its unsound

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or best

d6 is a mistake because it blocks in your dark square bishop