Computer analysis marks completely losing position as +4 • page 1/1 • Lichess Feedback • lichess.org

https://lichess.org/tD9aGAXy/white

In this game, I requested a server analysis and at the end, it said I was +4 but if I turned on local evaluation, it couldn't find the best move, all moves were -3 to -4. Once the analysis reached depth 19, the bar suddenly dipped from +3.8 to like -4.5

Edit: it seems that the analysis is completely flipped around, as when the server says it's -3, it's +3

https://lichess.org/tD9aGAXy/white In this game, I requested a server analysis and at the end, it said I was +4 but if I turned on local evaluation, it couldn't find the best move, all moves were -3 to -4. Once the analysis reached depth 19, the bar suddenly dipped from +3.8 to like -4.5 Edit: it seems that the analysis is completely flipped around, as when the server says it's -3, it's +3

StingerPuzzles

I would guess your local analysis ran for more than a fraction of a second and that's why you got different results.

I would assume that there are not enough volunteers to do deeper analysis. It's deeper than the analysis that chess.com does, and it's free so it does have that advantage.

Most of the server analysis is random people like me volunteering their home computer. The analysis runs in a fraction of a second per move. Some positions take more than a fraction of a second to properly analyze. I would guess your local analysis ran for more than a fraction of a second and that's why you got different results. I would assume that there are not enough volunteers to do deeper analysis. It's deeper than the analysis that chess.com does, and it's free so it does have that advantage.