How play better in chess, do you have any advices ? :)


before you begin a game, make sure your environment is comfortable -- no distractions. turn off all other electronics except your chess game. Concentrate !! Analyze your games afterwards with help of computer. Understand the possibilities you and your opponent missed. Read chess books.


Somewhat true. But this isn't changed at master level. Far far before it at about 1600ish
To the OP, u do need to do ur tactic puzzles tho.


Somewhat true. But this isn't changed at master level...
, it remains true even at the super-GM level too. In the Magnus-Nepo match, Nepo lost 3 games by tactical mistakes. The importance of tactics in chess cannnot be overstated.
Tartakower wrote that chess is 99% tactics, and it is very true.

Improving Your Chess - Resources for Beginners and Beyond...
https://www.chess.com/blog/RussBell/improving-your-chess-resources-for-beginners-and-beyond
The greatest priority is to prevent your own pieces from hanging,
The second priority is to know how to execute the simplest of checkmates (such as king and queen against lone king).
The third priority is to learn tactics.
There are others too, but those can wait.
But above all...enjoy the game, do not be too overjoyed with wins but also not be too disheartened with losses. You will appreciate the game over time.

You make candidate moves, cancel them out until you choose one, imagine you already played it, then think of the very worst that your opponent can do at a given position (always assume your opponent will play the strongest possible move), you calculate if it really is as hazardous as it seem (some attacks aren't real), if it's not that dangerous - you play the move.
My experience tells me that prophylaxis is super strong against just about Anyone. Play a3 and h3 a lot, when you have time. At endgame - use Tarrasch rule - rooks (both yours and your opponent's) belong behind passed pawns, not in front of them. (you put your rook/s on the seventh rank, and then put it behind the enemy pawn). Look at Morphy games - how he outplayed his opponents by developing a fresh piece everytime he didn't see an attack, or a need to defend.
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Of course, you need to check what chess character you have, and choose an opening that fits your style - otherwise you work too hard. I like semi-closed positions - e4 e5 is a bit too hard, I feel like it's more of a memory-game then wisdom, with sudden knock-outs. I chose French Defense - aggressive, and manouvering-like.
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https://www.chess.com/article/view/picking-the-correct-opening-repertoire
Choosing a defense against d4 is harder than choosing a defense against e4.
Choosing what to play as White is even harder, perhaps try the Jobava-Rapport System, perhaps the London. if you want one clear thing.
How about doing a little quiz, tell us the results, tell us what you think is your playing-style, and then we'll think of an opening repertoire that suits you:
https://www.chesspersonality.com/
(I'm a "Grinder" in said quiz, so the suggestion was Caro Kann and Semi-Slav. I play French Defense and Benko Gambit - - closed position openings with less space but more spice.
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As White, I think d4 followed by Nf3, trying for a Colle-Zukertort (it works only if Black blocks his light-square bishop behind a pawn chain) is a good way to go:

My advice is, when you start the game out, give your opponent the benefit of the doubt and assume that they'll want to do a proper opening development phase. Sure, much of the time it devolves immediately into fending off a wayward queen etc, but sometimes the other person will clearly also want a quiet opening game. Go for that, I say, because those are the most satisfying games. Pardon the term, but they feel "gentlemanly".

Rook Endgame: - Philidor Position and Lucena Position:
Pawn Endgame - King and Pawn vs. King.
You're good to go.
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Second Level:
https://www.chess.com/forum/view/endgames/rooks-endgame-1