How good is 800 elo player

How much should an 800 elo player know? 

If you ask more experienced chess players, then they will often say things like "don't hang your pieces", "solve tactics puzzles", or "follow chess opening principles." 

(Blog post I wrote a long time ago on chess opening principles: https://www.chess.com/blog/KeSetoKaiba/opening-principles-again )

All of these are decent pieces of advice, but I feel like it takes a little more than this to reach those levels - it is simply that those who are offering the advice have forgotten what it was like when they were around that rating. 

To respond to your question, everyone is different even if rated about the same. Player A rated 800 might know a ton more about endgames than Player B also rated 800, but maybe Player B makes up for it by solving tactics puzzles daily. We must remember that ratings are only estimates anyway, so the best one could accurately advise from ratings alone are general guidelines which are likely to assist that rating of player.

The "average" chess rating is roughly around 1100 (varies some based on rating pool, online vs in-person OTB and other factors), yet players 1000 or less rating are usually referred to as "beginners." I could go on a long conversation to why this is the case, but this post is long enough  

In my opinion, an 800 player is typically still a learning player very new to chess, or someone who has been playing for a while, but doesn't have the experience by practice (or took a break after learning the rules etc.) I'd anticipate most 800 players to know the rules of chess like en passant or castling already in addition to just how the pieces move: 

https://www.chess.com/learn-how-to-play-chess 

An 800 player also might have a loose idea of some chess opening principles (blog post linked earlier in post) or might do some chess puzzles regularly (like the chess.com Daily Puzzle). 

Feel free to message me if you have any specific questions about rating or what players at certain ratings usually know; I'll try to help with that information if I can

well I've been playing chess for a month now and I think I have the basics down like openings, forking, pins, developing pieces, forcing moves, center of the board, and checkmate patterns. But I still have trouble with blundering pieces, although I do think you are underestimating us 800 elo players. 

#4
"I still have trouble with blundering pieces"
++ This is the key point. Whenever you have decided on a move, check this intended move is no blunder and only then play it. It is a little mental discipline. Hang no pieces, hang no pawns and you are 1500. No study required.

I'm working on that but sometimes I miss forks or miscalculate trades

800 comes under beginner category. They exhibit fighting till the very end which lacks in top players due to passage of time and experience. As 800, it is adviced to play normal chess and dont go for worse position by force. Like allowing double for no reasons, trading bishop for a knight when it can be avoided.

Calculating checks capture threat is enough to reach 1000.

#6
"I'm working on that but sometimes I miss forks or miscalculate trades"
++ It is important to make the difference between 2 things.
1) You miss or miscalculate though you spend enough time on the move and you look carefully. That is lacking tactical ability and vision.
The cure is to solve tactics puzzles and to analyse your lost games.
2) You make some blunder because of haste or superficial thinking or impulsive moving.
The cure is mental discipline of always blunder checking before you move.

ok guys thanks for the helpful advice and hopefully ill reach 1000 elo next month!

think of blunders before every move,dont waste moves like random h3 and spot super basic tactics ez 1200

I'm about an 800 and I've been improving rapidly for the past few weeks, (from like 630 to 794), My advice is just to think deeply about the reason behind your move. If your reason is something shallow like "I'll move there because it threatens peice x" the reason is too shallow. You need something like, "I'll move piece y here, because if he takes then he'll double pawns and if he moves than he'll lose material." Sometimes, if you rushed you can't find a good reason which is why playing longer games is best for improving. I know this advice is kind of simple and you probably know it already, but I thought I'd share it, gl .

800 elo chess players are heavily underestimated its wierd because I watch gotham chess review those types of games but being around that elo myself I play much better players shown in the videos of that elo and am a better player myself then the ones in the video

Saluton

Must know at least 10 different openings

@cagatay313 nah I got to 1000 b4 with one opening

Im at 900 and I have never ever learned how to play an opening but I'm really good at endgames. I think I should be able to reach 1000 in around a month.

My point is that you probably need to learn openings when you get to 1000.

I'm thinking of learning the Sicilian as I like it and want to learn how to play it.

Sometimes I see 1000+ missing mate in one and easy to spot tactics. I just wonder how are 900s better than something like 1000-1100