Enter Your Reply The Comment You're Replying To H. G. Muller wrote on Tue, Oct 13, 2009 05:53 AM UTC:I tested the Adjutant (BDD), and it is _strong_. A pair of Adjutants beat a pair of Rooks by 82% when I program its value (slightly) above that of a Rook, and by 72% when I program it below a Rook. (No doubt because it starts pursuing trading them for Rooks, which is a waste.) Only 160-190 games so far, but that should have a standard error of ~3%, so all very significant. An Adjutant might on thus be worth about R+P. The fact that it is a color-bound piece makes the Adjutant quite interesting: there should be a pair bonus involved, and because the Adjutant is quite strong, the pair bonus should also be large. This effectively makes the first Adjutant much more valuable than the second. (This explains why building in the drive to trade it for Rook is unusually detrimental.) So it could be that Adjutant + pair bonus is even larger than R+P, while R < solitary Adjutant < R+P. It would also be of funamental interest to see how pair bonuses behave between different color-bound pieces. E.g. when you have an Adjutant on the light squares, it stands to reason that a Bishop on the dark squares would be worth more than one that is also confined to the light squares. But would the difference be larger or bigger than when the Adjutant would have been another Bishop? Too bad Fairy-Max has no pair-awareness, making it a poor tool for answering such questions. Perhaps I should make a version that uses a material table, in stead of strictly additive piece values. Edit Form You may not post a new comment, because ItemID Pieces does not match any item.