piece values NNUE of Stockfish 15.1

.. i understand..ish

the negative values mean that they are good for black

this is how all engine analysis works

if black is ahead, it is a negative value

and as said by op, the values are compared using removal of the piece...

so in the italian and ruy, blacks e pawn is positive so removing it is good for black (bit confusing, but makes sense)

how!?

Perhaps we can eval empty squares by placing all existing pieces at it one by one and comparing the new evaluation. I mean all pieces, pawns and even king. And placing even if it's totally illegal at that moment.

That'd also apply for not empty squares. To evaluate the board positional perspective. (prices of squares)

pretty sure stockfish collapses with two kings, or a king in check when not his move

hello

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