You can have a look at Lucas Chess.
There's a version for both Linux and Windows. (I use the windows version with wine and no performance problems).
There's a lot of modes and resources for studying in this software.
How many opening moves are needed before we can identify that such moves fall into a particular well-known opening such as Ruy Lopez, London, kings gambit, an so on?
It depends on the opening. Some are more strictly defined than others; e.g. a game is really only a "Ruy Lopez" if it reached the position after 1.e4 e5 2.Nf3 Nc6 3.Bb5, but lots of different ...
Openings are typically decided by ECO Codes.
So as few as one move and as many as 5-6 or more moves could decide an opening. For example, as soon as you play 1. b3 it is a Nimzo-Larsen attack. (A01)
As soon as 1. e4 c5 is played it is a Sicilian defence. (B20) But there are many variations. If the game continues 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6, it becomes ...
https://en.wikipedia.org/wiki/List_of_chess_openings has what you want.
And after such identifying moves, can we we say that such opening is already completed and the player is on his own for the development of his pieces
Openings certainly don't "complete" like that. In fact, ECO openings only give you the head start. Whether a player is on his own ...
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 ...
So forget about Stockfish, forget about Kasparov, forget about GMs.
You are 1850. You understand something about the game. Not everything will be correct, some of it will be.
Start analyzing. It can be your own games, it can be any old game, it can be a random diagram you saw in the newspaper.
Set up the position, and try to figure out what is going on. ...
Idea is taken from the battle chess game.
Play normal chess. When piece A takes piece B, the two players play a street fighter (or whatever fighting game) match. The defender can only move or block for the first 30sec of the match. Whoever loses the match loses the piece. King doesn't fight, automatically wins if taking a piece, but you ...
For kids younger than 6, you could try the following:
You start by a specific number of pieces(no pawns or kings) on the board mixed.
One piece is "it" and this piece "chases/attacks" the other pieces.
All the other pieces try to "run away" from this piece.
If "it" captures a piece, the latter piece is "it"
The players switch when a piece ...
Appart from the games you can find under https://bit.ly/PreChessGames (translated web for https://www.ajedrezparalaconvivencia.edu.uy/preajedrez) I may add these:
Chess with cards
You may want to try as well chess with cards. You can download the cards and print them.
Each player has a pile of these cards front face down, and they have to get one card, ...
The best way I believe is to put them in front of the board and explain that pawns are so brave they only move forward and never move back. If they know the other pawns are his/her opponent's they would understand they move towards them as it's they opponents forward.
The trickier part would be to explain how the pawns eat. I may say that they eat looking ...
This is similar to helping a kid distinguish "left and right".
Kids at that age are visual, so you could use a black sticker and a white sticker, placing these on opposing sides and tell her that white pawns move towards the white sticker and black pawns towards the black sticker.
You can use stickers with images for fun, for example teddy bears.
I remember seeing in a children's chess book that the pawn is like a peasant armed only with a pitchfork. He marches only forward (one or two at the start, one otherwise). He only attacks to the left or right side. And he never moves backwards.
The pawn ... historically represents infantry, or more particularly, armed peasants or pikemen.
At 5 years old a child's brain is still very immature. The good news is that it is also developing very fast. The easiest and most effective solution is just to wait. Within a year or two the problem will have solved itself as your child's brain develops enough to satisfy your expectations.
1) Pawns are important. It's great that you never gave up an entire piece (for example, you do notice the fork and don't play 50...Kxb4.) But it's bad that you gave up so many pawns.
2) When a piece is pinned, attacking the defender will sometimes work, but it's usually preferable to attack the pinned piece again. You should at least consider doing so.
What are the priorities/responsibilities of my pieces?(there are times where a piece is protecting more than a single square.)
Is there a move that can force the opponent a certain move? If there is, how can I take advantage of it?
Is there a move that has multiple purposes?
How will my opponent respond to my move?
Is the sacrifice worth it?
These are the ...
I would recomend getting tips on how to think from CJS Purdy's blog; see the associated links on the right hand pane.
CJS Purdy was the first World Correspondence Chess Champion. Bobby Fischer praised his didactic abilities.
My view is that the basis of winning chess revolves around the double threat. (A triple threat is rarer but even better!) The double ...
Is there any way to find good moves that I made, rather than just non-mistakes?
Actually, in most cases, it's doing this already. The reason your moves aren't showing up is probably that they're not actually good moves!
the evaluation shows I made a suboptimal move even though against this particular opponent it resulted in me winning a piece
What do you think is the best time control to play online to improve?
Whichever time control is enough such that you'll be happy to spend at least 15 minutes analyzing the game afterwards. For most of us, that rules out blitz because such games begin to feel "disposable." I find 2+30 or 15+15 to be good enough here.
Have you tried improving mainly via ...
Objectively, black is lost but that's not the question you asked. You asked if it was possible that black could someone win the game. Obviously, the answer is yes. Theoretically white could drop his queen on the next move.
I think black's best chances are to consolidate his pieces, castle queenside and use the weak light squares to generate an attack.
Sorry, computer engines are not designed to think like a human. It's a machine, it's written to play strong chess. There is no intelligence in there to think like that.
The "good moves" you mentioned were actually bad moves at Stockfish's level.