Author: John Merlino
Date: 19:04:29 11/28/00
Go up one level in this thread
On November 28, 2000 at 16:37:28, James T. Walker wrote: >On November 28, 2000 at 16:28:26, John Merlino wrote: > >>On November 28, 2000 at 16:21:33, James T. Walker wrote: >> >>>On November 27, 2000 at 18:35:09, John Merlino wrote: >>> >>>>I cannot remember who asked this, nor on what thread the question was asked, so >>>>I'm just posting this here on the hopes that the person who asked me will find >>>>it. >>>> >>>>The question was: What are the maximums, both in plies and in characters, that >>>>The King/CM8000 supports? >>>> >>>>Answer: The King has an internal maximum PV length of 63 plies, and the GUI >>>>supports PV strings that are up to 2048 characters long. >>>> >>>>jm >>> >>>Hello John, >>>I think the question was how many plies will CM8K search. I gave it the >>>following position from the endgame tutorials. >>> >>>8/p7/P7/8/8/6K1/8/6k1 b - - 0 1 >>> >>>Chessmaster 8000 searched 46 plies in about 2 seconds and stopped (Infinite >>>level). The clock continued to run but CM8K was not searching anymore. This >>>looks like a bug to me. >>>Jim >> >>Well, that's exactly what happens to me too, but I'm not SURE it's a bug. >>Obviously, infinite time means that the engine will never return a move (it's >>basically the same as analyze mode). However, the engine stopping might be >>something intentional in Johan's code. I'll ask him and get back to you as soon >>as he gets back to me.... >> >>jm > >Thanks John, >Well you can select 99 plies in the personality setup so I expect that it should >go that far in infinite level. That's why I suspect it's a bug. Also if it's >not going to compute anymore then it should kick out a move and stop it's clock >even in the infinite mode. >Jim I got a response from Johan. I was incorrect about the max PV length for The King. It has a maximum of (gee whiz) 46 plies, and 200 characters. The GUI, as mentioned above, can support up to 2048 characters of PV text from other engines, however. I imagine that the reason that 99 plies was set as a maximum was just for the future, and possibly even because they didn't know what The King's maximum PV length was when that code was written! Sorry about the confusion. jm
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