H. G. Muller wrote on Tue, Nov 29, 2016 06:49 PM UTC:
You should not take the scores reported by Fairy-Max that seriously. For one, the positional part of its score is relative to the current position. Its own position can be far better, and it can still report a negative score (with equal material). Because the opponent can improve his position a bit more (or faster) than the side to move. This is for instance clearly to see directly after it castles, when the opponent has not castled yet. Castling gets a large bous (or it would never do it), and of course it is usually not possible to prevent the opponent from doing it. So even though this only equalizes, and the opponent could have other disadvantages too (like more-poorly developed pieces), Fairy-Max will still report a negative score, just because it can never match the castling bonus that it already collected.
You should not take the scores reported by Fairy-Max that seriously. For one, the positional part of its score is relative to the current position. Its own position can be far better, and it can still report a negative score (with equal material). Because the opponent can improve his position a bit more (or faster) than the side to move. This is for instance clearly to see directly after it castles, when the opponent has not castled yet. Castling gets a large bous (or it would never do it), and of course it is usually not possible to prevent the opponent from doing it. So even though this only equalizes, and the opponent could have other disadvantages too (like more-poorly developed pieces), Fairy-Max will still report a negative score, just because it can never match the castling bonus that it already collected.