Interactive Diagram seems to slightly undervalue zB.
Well, I don't know. I don't think I ever measured the true value of the zB. The algorithm for guestimating piece values doesn't always get it right. E.g. BN is also underestimated. What is worse, I am not even sure it guestimates it on the correct board. In particulare whether it takes the 'holes' into account when determining the average number of moves. I suppose the piece values could strongly depend on that. E.g. a normal Bishop wouldn't be worth much on the Seenschach board, but if it estimates it the same as on a normal 10x10 board... This at least is something that should be easy to correct.
Well, I don't know. I don't think I ever measured the true value of the zB. The algorithm for guestimating piece values doesn't always get it right. E.g. BN is also underestimated. What is worse, I am not even sure it guestimates it on the correct board. In particulare whether it takes the 'holes' into account when determining the average number of moves. I suppose the piece values could strongly depend on that. E.g. a normal Bishop wouldn't be worth much on the Seenschach board, but if it estimates it the same as on a normal 10x10 board... This at least is something that should be easy to correct.