Read more here :- https://en.chessbase.com/post/cheating-spanish-team-championship-2024

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FIDE has never seemed to want to get involved in the naming of openings and the A09 system is from a private book publishing house.

This is a common thing in Chess, What is the point you are trying to make. ?

Are you sure its not +5.44 ?

An article about it :- https://en.chessbase.com/post/aphantasia-in-chess

Try the Queens gambit ?

I recommend you study “Silman’s Complete Endgame Course From Beginner to Master”

The answer is not going to be to play more with time controls but playing long time controls and spending time (maybe years) thinking deeper in lots and lots of different positions until you can calculate well then you will be able to speed it up as you have a lot more knowledge of the positions you get into.