The OP's post of needing only one opening for white, and one opening for black to get to 1000 rating is not really accurate if you are to follow the OP's logic. You would need one as white, and two as black. One for responding to e4 and one to respond with to d4. While I do agree with other posts that you don't need to have your opening memorized there is benefit from playing the same openings all the time. You get familiar the ideas and plans of the opening (if you are learning it properly), and you learn about the potential traps that other players play against that opening. Which leads to you not falling for them. When it comes to openings there are three things to focus on when under 1000. Those are 1. Opening principles 2. Tactics 3. Not dropping pieces. Any decent opening follows these, and players under 1000 are not good enough to consistently punish poor opening choices.
As far as #9's post: Super GMs at times play weird or objectively bad openings against lower rated masters. If they can get away with playing openings that are not solid, and still beat masters with them then players under 1000 can get better and reach 1000 while playing sub par openings. A player with a rating of 1000 would not be able to punish a bad opening choice nearly as well as a master could, and the Super GM still typically comes out with the win.
I second #2's YouTube channels recommendations. Those are good channels. I have many times recommended Chess Vibes.
The main things to do to get to 1000:
- Tactics: This is the most important thing. You have to learn how to win material through forcing combinations and moves. I also include in tactics not blundering. It won't matter how much better your opening is if you drop pieces, and give away your opening advantage. Getting better at tactics also improves calculation which being able to calculate accurately is important.
- Endgames: Know the overkill mates and be able to do them in 30 sec or less. Learn the principles of the endgame well, and apply them consistently in your games. Learning king and pawn endgames is useful to get to 1000 rated. It certainly is better than memorizing more lines of an opening, or spending a lot of time on earning your opening improperly.
- Opening: As I mentioned above the main things are to learn and apply the principles of the opening, keep an eye out for tactics, and blunder check. When it comes to openings players need to learn how to play the opening phase of the game, not memorize lines. Knowing what to accomplish, and be able to think through the position to best accomplish that is what needs to be done. There are too many openings and variations that you can't memorize all the responses you would need to know.
- Strategy/ Positional play: For under 1000 rated players this will focus on two things mainly. First is improving your pieces position/work on coordinating your pieces towards a common goal. Second is learning how to evaluate a position. There are many parts to this, and too much cover when it comes to strategy and positional play. #2's post covers some of those areas.
i mean openings can get you to 1000 very easily *AHEM VIENNA GAMBIT*
The only thing you need to get to 1000 is to blunder check your moves.
Anti-Blunder Check.
After each move ask yourself:
Is my move safe?
Can my opponent take or attack something?
Can my opponent play a forcing move on my half of the board?
Can my opponent move onto my half of the board and take or attack something?