Evaluation Numbers?

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Avatar of USA-Elephant

Hi All,

1. Yes I have read:

https://support.chess.com/en/articles/8379354-computer-evaluation-numbers-on-chess-com-like-2-25

2. Semi understand it however I little confused on something ... thus per the image below can you confirm something:

2.a Per the three white bars, it is saying in the game at current time white has little edge correct?

2.b Per the three white bars, it is NOT saying the advantage is based upon the next move correct? meaning if i choose one next move there will be new bars correct? thus again to confirm the bars at current time are eval of present move and not based upon the following move correct?

2.c And then where I get a little confused the more is when we have mixed bar, black and white as shown below, how is the game being represented in current time prior to a move with a black bar, neutral and white bar if the bars again are representation of the current state prior to move OR is the bar eval if person then makes move thereby the bar is stating position if one makes one of those moves?

Any extra guidance, thoughts and explanations from you all here will I am sure help! Each word and how things are worded bring clarity to each person  

Avatar of Martin_Stahl

The evaluation listed is based on the position with that given line. When stepping into the line the actual evaluation could change, as the engine can go a little deeper.

The number given is essentially equal to that amount of material. So a +/- .50 is half a pawn advantage and that is considered a slight advantage.