Author: Robert Hyatt
Date: 20:34:21 10/07/02
Go up one level in this thread
On October 06, 2002 at 11:46:18, Uri Blass wrote: >On October 06, 2002 at 11:27:43, Chessfun wrote: > >>On October 06, 2002 at 11:05:20, ERIQ wrote: >> >>>I just had to post this warning to all chess programers and computer account >>>managers. Having a computer try to play instantly just to win on time is a bad >>>idea. Here is a game that a 2400+ program lost to me but used only about 5 secs >>>the whole game !! and It was a five minute game. Even if it won I would think it >>>in poor taste to just try to win on time :( >> >> >>Dingbat has a target rating of 2300, in order to get that he speeds up the >>computer move time, so as to reduce it's ply depth. IOW he isn't trying to win >>on time. >> >>Sarah. > >I do not know what is his target but the only logical target of reducing the >time is in order to reduce the rating. > >I am surprised that people think that it is done to win(it is done to win only >if it is done only when the opponent is in big time trouble). > >I also have a parameter that tells the public movei to play faster so if >opponents think that it is too strong for them they can change the parameter >from 1 to 60 and movei is going to play 60 times faster. > >I never thought that it is going to give movei better rating but I also thought >about comp-comp and not about comp-human. > >The main reason for this function is the fact that winboard does not support >unequal time control and if I want to test if my program is 5 times better or 10 >times better than another program I have no way to do it without a special >function. > >I found that public movei is more than 5 times better than tscp only when the >time control is slow enough. > >Unfortunately other engines do not support this function so I cannot find how >much speed movei need to be better than Ruffian but people can get an estimate >if they play games of x minutes/y moves when y is a big number of some thousands >thanks to the bad time management of ruffian. > >Again I suspect that the difference between the public movei and Ruffian becomes >bigger when the time control is slower but today I do not care about the public >movei. > >Uri Actually, moving faster vs humans is not a bad idea, in blitz games. It speeds up the tempo, and the human will generally fall right into the new faster tempo, and explode tactically. I found that Cray Blitz did much better at faster speeds. Everybody _used_ to play 60 moves in 5 minutes of cpu time against humans, and if the human lasted 60 moves the computer automatically lost. This avoided the "operator time" penalty. I changed this to go 3 seconds per move until 1 minute had been used on the real chess clock, then 2 seconds per move for the next minute, and 1 second per move for the rest of the game. I don't recall it losing more than 1 or 2 games out of at least a hundred games, against IM/GM players. All with me typing the moves in and making the moves on the real board and hitting the clock... IM Mike Valvo said "this is a different game like this, at game/5min, I have a lot of time to think while it is searching, so I never get into time trouble. At this speed, I have to use my own time and it is easy to get into an up-tempo game and blunder, or use too much time and blunder when time gets short."
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