Author: James Robertson
Date: 17:38:02 10/02/98
Whenever I ask programs like Crafty or Chessmaster to display their principal variations, if they search like ply 6, they display 6 plies of pv plus extensions. I.e, it looks something like this: QxP Rc7 Bd6 Rb7 Qd2 Rd1 Qf2. But in other programs (Arasan, Exchess) if they say they searched 6 plies, the pv is often only 2 or 3 plies long: QxP Rc7. I'm guessing this is because of hash tables ? Anyway, no matter how they come up with a pv, how does Crafty avoid displaying a pv much shorter than the claimed number of plies searched? Conversely, how does Exchess decide to only display a portion of the plies searched? Thanks, James
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