Many players can't win in a won position

I've been practicing my survival skills and I came to the conclusion that too many players have difficulty in finishing their won games. This is just one example but I have saved maybe hundreds of games like I did in this one:
pt.lichess.org/5OFZEpHp/white#115

And these are other examples:






And that's why I think studying openings is useless for most players, or at least it's not a priority. They should learn how to win their won positions and how to save lost ones.

nice, a short study of the second link
en.lichess.org/study/aX0hSfed

an easier position, move 23
en.lichess.org/X641RUUK/black#45
white triples pawns then weakens the a pawn and black has an easy game.

I think I had a nice position in that game. But I got in time trouble and totally misplayed it. White should win.

I have a problem with this, and will easily confess that it is among the biggest of my weaknesses. I'm currently looking for resources to study endgames.

Me too

I´m a player who loves endgames, In my opinion the first you should study is endgames. If you want to study endgames I could help you.

I love endgames too. I think players under 2000 should focus more on endgames instead of openings. Tactics also help a lot. Rook endgames are the most important in my opinion.

@toda_pro

You really need to have some good knowledge of all the phases of the game in order to be strong.

I could make a thread of people totally getting murdered in the opening, and argue the opposite of what you have argued here.

If you fail at any phase of the game then you fail period.

All the endgame / middlegame knowledge in the world is not going to help me if I can not get my share of the center, my pieces developed, and protect my king in the opening.

The only way to truly grow in strength is to play against stronger players, and take your lumps.

A 1500 has a lot more to learn from a game against me than I have to learn in a game against them.

A 2500 has a lot less to learn from a game against me than I have to learn in a game against them.

Also another thing to help you grow stronger is to actually analyze each and every game you play. Now you don't have to spend 4 hours on over looking your game, but find out where you went wrong, and what you could have done better so you are less likely to make the same mistakes.