Stockfish analysis

Hi,

I analyze with Stockfish, say it goes to depth 30. I call its first variation "variation 1".
Then I enter the two moves of variation 1, and I wait for its analysis in depth 28, then I name the first variation as "variation 2".

Why variation 1 and variation 2 are different?

Thanks

@Pasteque30
Sometimes, there is a very long sequence that leads to checkmate or a substantial advantage even when played with precision. If the initial position you enter is not drawn with precision play then naturally one side has an advantage.

If its only set to evaluate to 28 moves and the sequence is 30 moves long its probably not going to find it, because it has not evaluated beyond 28 moves. Its going to suggest to you the move that gets you the best position in 28 moves.

Now lets say there does happen to be a sequence that is 29-30 moves long from that position and you decided to run a depth of 30. Its now going probably find that sequence and suggest that better move because its calculated further into the game and knows it begins with a different move than the one recommended to you from the 28 depth evaluation.

Sorry, I don't understand your answer: variation 1 and 2 have the same depth...

@Castellum1 I misread this post. I missed where he says he plays the 'first 2 moves recommended' and then runs the depth at 28 which is 2 less than 30. I will have to do some playing around to figure this one out.

@Pasteque30 Sorry for misreading your initial post.

@Pasteque30 any chance we can have the position you were analyzing? because now I am curious as well and enjoy studying positions too!