A typical way to do it is to treat puzzles the same as players and rate them based on whether they "win/lose" and the rating of the "opponent"
ChessTempo has a nice explanation here copied below:
The rating system is inspired by an idea implemented at the Chess
Tactics Server. CTS treats both problem solvers and the problems as
opponents with their ...
My advice would be to use the adult site. I've had several students but never recommended a kid-friendly site to anyone older than 8 years old.
It would be good to know why exactly you want that membership for further advice:
If what you are looking for is a site where your daughter can play and get experience, then make an analysis of those games (no ...
I see a couple of reasons not to do this:
It's a lot harder to distinguish the pieces. For example, bishops and pawns look really similar, and the black queen and king look similar too.
When you watch a game as an on-site spectator, you don't view it top-down either. Even better: the players themselves don't view the board top-down, but from an angle.
The best completely free website I know of is Lichess. Personally, I use Chess.com. It's free to play on, and many of the features it has can be used by anyone. However, to gain full access to the website (e.g. the video library), you do need to pay for a membership. It is relatively inexpensive though—$100 per year, which is equivalent to $8.33 per month. (...
If there are no stronger players convenient to you, and you don't want to use the technology available to play with stronger players further away, then you must go to where the stronger players are.
Organizations exist to do just this. For instance the US Chess Federation has tournaments around the US throughout the year that allow players to meet and ...
Have you tried lichess studies ?
They can be used exactly like that. Let me give you an overview of how it works.
First you need to create a study, which you can do by heading to https://lichess.org/study/ and clicking in the green plus button.
As the What are Studies page explains, you can invite people to your study:
Let me quote the ...
Magnus Carlsen had the major saying in the selection. There was no "objective" qualification of any kind, besides the hope to create an interesting line-up.
Firouzja was included because he beat Carlsen in the Banter Blitz Cup, so a "rematch" would attract many viewers.
Disclosure: I work for chess24. I wasn't involved in the decision process, and I can't ...
Open Chess Books is a site that aims to “republish classic chess books, with all diagrams transformed in animated boards, and release them for free.”
They only have two books at the moment (Modern Ideas in Chess and Chess Fundamentals), but it's a great resource so far.
Predator at the Chessboard by Ward Farnsworth is a great primer on chess tactics that's ...
Well, the main problem with these tests is that they aren't reliable. They can only give you a rough indication of your playing strength, nothing more. Maybe something accurate to 100 rating points, and it's very hard to gain 100 points in a month, even for a beginner. So it will be hard to measure your progress on that scale.
Also, taking the same test ...
Know your openings!
You didn't mention time control, but it doesn't matter, you just may not allow yourself to waste precious time on opening.
Avoid sharp, theoretical lines if you can not memorize them fully.
I usually avoid such openings because if you face a novelty/variation you haven't seen so far, there goes precious time on thinking for a move that ...
Elometer is just a test.
A true rating system score is only relative, i.e. it means something only among the members of a group (that should be big, but is finite). After choosing Elo, ree, TrueSkill, Glicko - here's a comparison - or what you like better, it makes no sense at all to compare your score within a group with your or someone else's scores in ...
Absolutely inaccurate. ELO rating is determined by playing a whole game of chess, not by solving a few positions without any pressure.
Please play some online games for better estimate of your playing strength.
I have found that reading books makes one concentrate more, and the material is usually covered more in-depth. I think that the "in-depth" part of this is what is important. The explanations are usually much better, and geared toward learning something more permanently.
I find that my work on a famous chess site that you buy materials has been much more ...
What type of online chess do you play? Blitz is not a good option, if you want to improve. If you want to play and improve using the internet, you should play standard time controls (at least more than 20 min/game). There are many good players on for example ICC and FICS playing slow time control chess. Try to chat with your opponents after the games, to ...
If you want to play with stronger players, you need to be where those players are. I see two major ways to do this:
Travel to where they are. You might only be able to do this every so often, but if a major tournament comes to your city or one within a few hours, maybe make a weekend of it and go to that tournament. You're likely to hit a bigger player pool ...
If you are playing online you should already have an online rating which should be enough to track your progress.
As far as I can see, the website you list tries to give an estimate based on how well you solve tactics puzzles. Tactics is important, but not all to estimate playing strength.
At least at some level other aspects like openings or strategy/...
You can do this
at https://lichess.org. Go to the "Play" tab, and select "Tournaments." Assuming that you have a lichess account, (all they need for that is your e-mail, and they do not spam it) you will see an option to create a tournament. Once you select that option, you will be able to specify the start position in the tournament (this ...
For example, if I can upload the recent 100 games that I played under
some standard time control, will there be a way to estimate my elo
based on how I play?
If, as part of that upload, you also supply the ratings of opponents in the same rating system (i.e. all FIDE or all lichess or all chess.com) for at least 5 of the games in which you score at ...
My recommendation would be to join your local USCF club and play blitz there. Learn to use the clock, learn etiquette, learn your weaknesses, get tips from better players.
I'm not sure you have to record your moves in blitz.
Above all, have fun.
I enjoyed Andy Soltis' The Art of Defense in Chess. It was all about finding hidden resources.
Remarkably, this book is available electronically for no cost, and legally I assume. Here are a few links.
Is there any online service which allow to share a board in real time
(I suppose to show it in a frame)?
Have you tried sharing your desktop in a Skype conference call?
Another alternative might be Google+.
The main reason, I think, for online blitz sessions not including increment/delay is the possibility of premoving. You can't premove in OTB chess, so you will use the increment for the 'motion' time.
Personally, I feel 3+0, where you have to keep good track of your clock, is more challenging than 3+2, where you just have to liquidate to a winning endgame ...