Chess.com's engine after the game - Best setting?

JustsayGabriel

Having a diamond membership I was looking into the engine at chess.com that does the analysis and gives stuff like 'key moments'. There are a lot of options to choose from and I don't understand them all... Any help is apreciated to pick the best options.

 

1. Game report (cloud)

I know what depth is (I think grin.png) ... It's how many moves deep it thinks?
So, 26 would be my best option?

Under that box there is a grej box, it says 'Run depth 30' ... Which is the best I guess but why doesn't it appear with every game? I checked more games today and it only was an option in 3 out of 20. How come? 

 

2. Position analysis (cloud):

The higher the number, the better the computer? What is MCTS?

Is this the best AI to let it run the analysis? Why would there be "lesser" options? Don't you always want the best?

 

3. Move analysis (browser):

First of all ... What is the difference between the position analysis and the move analysis? Shouldn't this be done by the same, strong, ai?

 

Which AI is the best? Why is there a .js ? Why can you put it off?

 

4. self analysis:

Is this here so when you make a move in your analysis it shows you how good/bad it is? (Like when you try key moments?)

 

Thanks!

kAtalan_csaT

First of all, thank you for asking these great questions! I did not even know that there is a setting for the Game Report parameters!

1. Game Report (Cloud)

I have tried to analyze several games from my Archive and I have managed to click on the Run Depth 30 only once, on the very first analysis. After that, the button was completely invisible! I do not know also what is happening here, but I will ask the developers, on the bottom of this page:

https://support.chess.com/article/365-how-do-i-use-game-analysis

2. Positional analysis (cloud)

According to this Wikipedia article

https://en.wikipedia.org/wiki/Komodo_(chess)

MCTS is the Monte Carlo search tree! Which engine is better? If there was a simple answer to that question they would not hold matches between the engines! AlphaZero, Leela, Stockfish, Komodo, all of them are evolving!

3. Move analysis (Browser)

I think that this analysis is done in our browser, not in the cloud, probably when we are asked if we can find a better move and probably in order to save time!

.js stands for JavaScript But I will ask them what does this Self Analysis mean exactly!

Thanks again for asking these questions!

JustsayGabriel

No problem, glad you found it :-)

Thanks for taking the time to look into it! 

kAtalan_csaT

I have sent a suggestion to chess.com and asked them to clarify those issues on that support page! When I get the answer, I will let you know!

JustsayGabriel

Amazing, thank you! 

Soniasthetics

so in terms of the numbers next to the engine names u were talking about, thats just the version of the engine, so generally yes the higher the number the newer it is, therefore meaning its better. 

So stockfish 12 is better than stockfish 10. 

The reason for the different AI options is because some people might feel more comfortable knowing they are getting stockfish analysis, or Komodo analysis. It just provides some variety, because not all the engines think exactly the same, there is a bit of variety, although im not sure what that variety would be. 

 

You can turn engine off in analysis so that you can just play out a game in analysis or make a presentation like a lot of chess channels do without having the AI's calculations interfere. It also keeps things a bit cleaner if ur presenting a game with dozens of different lines to showcase the good and bad moves in critical areas. 

 

For the MCTS, this is what I found on Chess programming wiki: https://www.chessprogramming.org/Monte-Carlo_Tree_Search

MCTS is based on randomized explorations of the search space. Using the results of previous explorations, the algorithm gradually grows a game tree in memory, and successively becomes better at accurately estimating the values of the most promising moves [12].

 

Basically Komodo MCTS is Like Alpha Zero, it runs on a neural network type system.

 

 

 

 

 

Soniasthetics

As for the "Grej" you mentioned, not sure what that is, hopefully we get an answer to that. 

But in general just slap on any of the engines, go to the highest depth you can, which for diamond members is depth 30 which u have screenshotted. 

I found this video posted by chess.com as well, I think you will find it useful: https://www.youtube.com/watch?v=nZvIy8roVyo&ab_channel=Chess.com

 

basically you have the cloud analysis which means its powered by chess.coms servers, and the other engine analysis which isn't the "max power analysis" option is just the engine running on ur clients power. 

 

Soniasthetics

Also the "Self analysis Lines" is just how many lines it gives u for moves.

So like when ur in a position and the engines running, it gives u the top 3 moves. U can up that to 5 and it will give u 5 of the top moves it calculates. 

 

 

JustsayGabriel
Soniasthetics wrote:

As for the "Grej" you mentioned, not sure what that is, hopefully we get an answer to that. 

But in general just slap on any of the engines, go to the highest depth you can, which for diamond members is depth 30 which u have screenshotted. 

I found this video posted by chess.com as well, I think you will find it useful: https://www.youtube.com/watch?v=nZvIy8roVyo&ab_channel=Chess.com

 

basically you have the cloud analysis which means its powered by chess.coms servers, and the other engine analysis which isn't the "max power analysis" option is just the engine running on ur clients power. 

 

 

 

I just found out the Run depth 30 only shows when the AI did a full analysys of the game. After an analysis, you can click settings and the Run depth 30 box is shown and clickable :-)

Soniasthetics

Ah Yeah there u go.