Author: Dave Gomboc
Date: 04:36:57 07/26/00
Go up one level in this thread
On July 26, 2000 at 02:45:00, Peter Kappler wrote: >On July 25, 2000 at 17:56:57, Robert Hyatt wrote: > >>On July 25, 2000 at 16:48:01, Ralf Elvsén wrote: >> >>>On July 25, 2000 at 14:52:06, Robert Hyatt wrote: >>> >>>> >>>> >>>>I don't see "big" holes. I had a chat with two GMs this week, in fact, and >>>>neither came up with any serious flaws they thought needed immediate attention, >>>>this for the first time in a couple of years that this has happened. This is >>>>not saying there are no holes... just no "gaping holes" that they noticed... >>>> >>>>Which is a good sign, as they had been reporting 'gaping holes' regularly until >>>>the last couple of months... Now we start on the 'sorta-gaping holes' I guess. >>>> >>>>:) >>> >>>From my somewhat less informed perspective I have to agree. I also >>>own Hiarcs and for that program I have a long list that I think >>>should be fixed, i.e. things I can see with my limited chess knowledge. >>>For Crafty, the holes are more difficult for me to put my finger on. >>>Although Hiarcs wins more often than not on my machine... >>> >>>Of course, there are sometimes I think Crafty misplays >>>some endgame positions with relatively few pieces. I have a nagging >>>supspicion this is because you always (?) use 5-man TBs and I >>>don't. Do you think it is possible that you miss "bugs" because >>>of this? >> >>Sure... a year or two ago, someone reported that it couldn't mate with B+N >>vs a lone king, yet I stole that code directly from Cray Blitz. But somewhere >>between putting it in, and last year, I screwed up a table of values, and sure >>enough, it couldn't mate without tablebases. I fixed it quickly and easily, >>but on my machine, it never happened as I always have tablebases around... >> >> >> >> >>> >>>I also think Crafty would do better in comp-comp games if it >>>valued space higher, but I know that's none of your priorities. >> >>It does in a way, but it doesn't understand it particularly well. The danger >>is that you wreck your pawns to get more space, and that can turn into an >>endgame nightmare... >> >> >> >> >>> >>>Btw, I hope you finally find the time to add those singular extensions. >>>If this makes Crafty tactically sharper (does it?) it will be even more >>>dangerous for the commercials. >>> >>>Ralf >> >>It should definitely be tactically sharper. Of course, there are costs as well, >>which makes it harder to evaluate. > > >Speaking of SE, where can I find a good paper? Did Hsu publish one? > >--Peter Look in AAAI, 1990-1991 timeframe. Anantharaman is a co-author of both IIRC. Dave
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.