Author: blass uri
Date: 07:02:57 07/20/99
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On July 20, 1999 at 03:33:18, Shep wrote: >On July 19, 1999 at 13:59:13, blass uri wrote: > >> >>On July 19, 1999 at 11:42:57, Shep wrote: >>>Indeed. Most programs have a maximum search depth somewhere between 30 and 45 >>>ply (Hiarcs, MChess, Chessmaster, Chess Tiger, Junior, Fritz, Virtual etc.). >> >>I think that you are wrong about Junior and Fritz. >>I think Junior can have bigger search depth then 45 >> >>Junior has another limit that the bigger search depth of it is not bigger than 4 >>times the brute force search of it. > >In the aforementioned Albillo 01, Junior goes quickly to "depth=63" (or so) and >then stops the search. Thus I concluded this is the max depth (and since we know >that for Junior 'depth != ply', I suppose Junior's max depth is I may be jumping to conclusions. I know that depth=14 for Junior can be 27 or 28 plies in some lines. By the same logic depth 63 for Junior can be clearly more than 45 plies in some lines. when I say bigger than 45 I mean to the selective depth of Junior and not to the brute force of Junior. The problem with hiarcs is that it cannot see more than 30 plies in the selective depth(I do not expect programs to see more than 30 plies in the brute force depth if the position is not a simple endgame). > >>I remember from looking at the selective search of Fritz that fritz can have >>selective search depth of 50. > >IIRC the highest I saw was like 53 or 55, but never 60. >So no "mate in 30" to be expected from Fritz... I did not say that it can see 60 plies but only that it can see more than 45 plies. Uri
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