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yah i see. i don't think that adds a lot (if anything) for strong players but i see how that could be interesting
@22 Without them almost everyone would be considerably worse players. Using the analysis tool on lichess is very useful. And far better than losing a few rating points here and there to cheaters which we will just get back next game.
Lightsss,

When you say only weak players, do you think such kind of features would not help you?

Think about it, 3 lichess has extremely rudimentary features under preferences page, which are:

-Material difference
-Board highlights (last move and check)
-Piece destinations (valid moves and premoves)

If you think that this features do slightly improve help you, then more advanced features could potentially help even more. For anyone who does blunder sometimes, there are features which could certainly prevent that.

you're a fairly strong player yourself. you know that players tend to keep track of these things by themselves and, while it would help a little bit (or maybe it would be too distracting), it does not warrant the creation of a new category.
My main issue isn't that a cheater wins his games, but that I am playing a cheater thinking it's a legit player with no assistance. Maybe we can have an engine based tournament where you can use any computer assistance you want, such as a engine tournament. But then it will just come down to who has the most powerful CPU.
Interesting idea. It would be a way to learn from external sources while playing at the same time. But it should probably be restricted to openings. Otherwise I'm not sure how we can avoid that players are simply assistants to the engine, moving the pieces where the engine says.
> Without them almost everyone would be considerably worse players.

So what? Would we have less fun playing? Would we exercise our minds less? Absolute chess strength is not a goal in itself, many people tend to forget that.
i have idea how about the developer create special rooms for user engine. this room legal to use their programs.. this room purpose to test their programs or opening books. thank you
Well said JacquesD (#28). However there are still those who have fun by seeking for perfect play (the closest possible to it). If you read the description of the cyborg team (#8), you'll understand. I have jointed the team for curiosity, but their goal is different.

In my idea, whatever feature lichess would offer, the one thing it should NOT offer is to point out the "best move". Even because usually we can't say for sure it's the best move. The engine calculated best move changes a few times through the course of it's analysis, as it looks deeper and deeper.

The "evaluation" of a chess engine provides us with too limited information. It's one-dimentional. It would be more useful to display a multi-dimensional evaluation for each move, such as own king safety, development, piece mobility, etc. Each number could be calculated individually for your pieces and for opponent pieces, displaying a positive or negative value. For example the O-O move could be evaluated in +10 terms of king safety, while O-O-O evaluated as +8. But depends entirely on the position. If castling exposes and corners your king, then this move would be evaluated negatively. We don't want to post a large table of numbers into the screen, but we can just display the most important dimensions for each individual move dynamically. By dynamically, I mean while the mouse is dragging the piece to it's destination square.

As any other feature, the goal of the engine's evaluation would not to bring the "game strength" closer to an engine's game strength, but just to train your brain to evaluate things with greater precision.

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