How can my move improve my centipawn position

I thought that basic rule was that your moves can only result in your centipawn position being worse or equal, but sometimes the analysis shows your moves improving your centipawn position (including blindingly obvious moves). Is there a ‘for dummies’ explanation of this?

Stockfish is stupid. There's your answer.

That is not really an answer.
Theoretically the evaluation can't increase with your move, you are right so far, @Chris1976. But theoretically means: considering the complete future. That is not possible, of course. Stockfish may just have found possibilities it has not seen before.

Yep, looks like SF is stupid.

@Chris1976 said in #1:
> I thought that basic rule was that your moves can only result in your centipawn position being worse or equal, but sometimes the analysis shows your moves improving your centipawn position (including blindingly obvious moves). Is there a ‘for dummies’ explanation of this?
the name of the effec #3 described is the horizon effect in short you like stockfish can only see as far as the horzain and no further and only by moving closer do you see more en.wikipedia.org/wiki/Horizon_effect#:~:text=The%20horizon%20effect%2C%20also%20known,plies%20down%20the%20game%20tree.

Thanks everyone - that makes sense now.

@Chris1976 said in #1:
> I thought that basic rule was that your moves can only result in your centipawn position being worse or equal, but sometimes the analysis shows your moves improving your centipawn position (including blindingly obvious moves). Is there a ‘for dummies’ explanation of this?
Don't trust Stockfish, trust yourself. that works for me