Point 1 is probably just about the depth of the analysis. Depth changes over time as the engine calculates deeper, so obviously the evaluation changes too. By the way, +0.5 in the starting position is too much for my taste.
Point 2: I don't understand what you mean. At all. I think you seriously misunderstand something, or I do. Each line has its own evaluation number, no addition is needed.
Point 1 is probably just about the depth of the analysis. Depth changes over time as the engine calculates deeper, so obviously the evaluation changes too. By the way, +0.5 in the starting position is too much for my taste.
Point 2: I don't understand what you mean. At all. I think you seriously misunderstand something, or I do. Each line has its own evaluation number, no addition is needed.
Thanks for your comments. I used the word "settle" to reflect the faqct that the analysis takes a while; the inconsistencies are in the FINAL score it arrives at.
Point 2 referrs to the black scores in white boxes assigned to each line, like "+1.3". I took that to mean that this move would change the position evaluation by that number, so if it was previously 1, and the line evaluation is +1.3 then the board evaluation after that move would be 1+1.3 = 2.3. If that's not what this means, then I'd be interested to know what it does mean.
Thanks
Point 2 referrs to the black scores in white boxes assigned to each line, like "+1.3". I took that to mean that this move would change the position evaluation by that number, so if it was previously 1, and the line evaluation is +1.3 then the board evaluation after that move would be 1+1.3 = 2.3. If that's not what this means, then I'd be interested to know what it does mean.
Thanks
It is not what this means. Each number just is what it is, don't add things up.
In your example, after you make the +1.3 move, the eval will be +1.3.
(Well, actually it almost certainly won't be exactly that, because the depth of the analysis changes as you make the move.)
The plus sign simply means that you have the advantage, while a negative number is the opposite.
Thanks magipi, that makes sense. I become dumber with each passing day. Maybe draughts is more my style.
I become dumber with each passing day. Maybe draughts is more my style.
There is no need for those words, this thing is not well documented at all, esőecially on chess.com. The reason is that chess.com likes to push their own product, the Game Review, which is a clumsy, hard-to-use. totally-not-user-friendly alternative to engine analysis. But at least it is a paywalled feature, while analysis is free. Wait, what?
Point 2 referrs to the black scores in white boxes assigned to each line, like "+1.3". I took that to mean that this move would change the position evaluation by that number, so if it was previously 1, and the line evaluation is +1.3 then the board evaluation after that move would be 1+1.3 = 2.3. If that's not what this means, then I'd be interested to know what it does mean.
Thanks
It is not what this means. Each number just is what it is, don't add things up.
In your example, after you make the +1.3 move, the eval will be +1.3.
(Well, actually it almost certainly won't be exactly that, because the depth of the analysis changes as you make the move.)
The plus sign simply means that you have the advantage, while a negative number is the opposite.
No, the plus sign means that white has the advantage, the negative sign means that black has the advantage,
I don't really understand how this things is not totally consistent in several respects.
1. It often starts a game with a 0.5 point advantage for white, but not always. If I click REFRESH on the browser, it'll sometimes settle on a different value. How and why?
2. The lines analysis labels each line with a change in points advantage if it's made, but when I make that move, the new points advantage is NOT the sum of the old and the predicted change.
Why is this?
I know the evaluation engines are doing complex calculations 20+ levels deep, but surely they are doing EXACTLY THE SAME COMPLEX ANALAYSIS every single time, so I don't see why they should differ, often substantially.
Thanks for your insights
Chris