Passed pawn evaluation

[jdart]

I have an array that scores passed pawn blockers by rank of the pawn and distance from the blocker to the pawn. It is auto-tuned. I think for the case shown it is about 1/3 pawn subtracted from the value of the passer.

--Jon

[bob]

My eye says "look at the space, young Skywalker..." White has almost none, black has plenty.