user-1: The Berolina pawn is a fairy piece that moves like a normal pawn, but can move two (and one in all other cases) steps diagonally and capture one forward. How much better (or worse) is this piece compared to a normal pawn?

user4418: According to Gnu, which has a page dedicated to Berolina chess, the value of the Berolina pawn is the same as in standard chess, = 1. This is unsatisfactory because they give no explanation of how this evaluation was made.
The evaluations for standard chess existed before computer chess programs and were based on hundreds of years of experience playing standard chess. That doesn't exist for Berolina chess which was only invented in 1926 and is little played.
In the absence of similar amounts of over-the-board games of Berolina I think the best approach to getting an accurate evaluation would be an AlphaZero-like simulation of millions of self-learning games which could provide the empirical data upon which a good evaluation could be made.

-1: <p>The Berolina pawn is a fairy piece that moves like a normal pawn, but can move two (and one in all other cases) steps diagonally and capture one forward. How much better (or worse) is this piece compared to a normal pawn?</p>
 4418: <p>According to <a href="https://www.gnu.org/gnu/gnu.html" rel="nofollow noreferrer">Gnu</a>, which has a <a href="https://www.gnu.org/software/xboard/whats_new/rules/Berolina.html" rel="nofollow noreferrer">page dedicated to Berolina chess</a>, the value of the Berolina pawn is the same as in standard chess, = 1. This is unsatisfactory because they give no explanation of how this evaluation was made.</p>
<p>The evaluations for standard chess existed before computer chess programs and were based on hundreds of years of experience playing standard chess. That doesn't exist for Berolina chess which was only invented in 1926 and is little played.</p>
<p>In the absence of similar amounts of over-the-board games of Berolina I think the best approach to getting an accurate evaluation would be an AlphaZero-like simulation of millions of self-learning games which could provide the empirical data upon which a good evaluation could be made.</p>
