Author: Don Dailey
Date: 13:44:36 01/23/99
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On January 23, 1999 at 14:12:33, Frank Quisinsky wrote: >Hello, > >Hans is attacked to injustice! > >They are themselves united three programmers: -)) >(Bruce Morland, Robert Hyatt and Don Dailey). I'm flattered to be considered in the same company as these two gentlemen but I don't work with either of them on anything. >The three musketeers (sorry) against Hans, interestingly! > >Does each new program now be attacked here? >It could be Crafty! > >Maybe, it was also a mistake to give the Source code of Crafty freely. > >A mouse is attacked by three elephants, why ?? > >I like to defend the mouse! > > >Don and Robert, > >here has developed so good programs, would also like others that. >And the help of Robert (Source code) for other programmers >is great however. Therefore why now attacks Hans, he was only honest. > >A fan of Crafty and Bionic Impakt! I reserve judgment on what happened at the tournament. I also propose an experiment and I also have a question for Bob Hyatt. I don't doubt Bob's results at all, I just don't really know anything about how he ran his test and want to know what he considered a match, how many games he looked at and how many moves in these games and actual match percentage. The actual number of matches don't mean enough for me to make a judgement. I don't know if 90% is reasonable to expect or ridiculously high. Mabye most programs will match most moves in a game with forced moves. Bob notices that Bionics moves closely match some version of Crafty's moves except in 2 cases. But the question is: Do they match as some specified time control on some particular piece of hardware? Or is it the case that at some point in the evaluation, Crafty would play a move Bionic actually played? I also would like to know how many games you actually tested this against. A single game with lots of forcing moves might leave some room for doubt, probably most programs would match a high percentage. I can see a possibility that if I did a 10 minute search with Cilkchess I might match a lot of moves that another computer might make, especially if I could match them against ANY move Cilkchess might play during the whole search period. Why don't several of us try this same experiment with our own chess programs? The question I want to answer, is what is a reasonable number of moves to match against Bionic? Maybe if one or two of us can get a very high move matching percentage this will exonerate Bionic? If anyone is interested, pick a bionic game at random from the 1st week of play in the Dutch98 championship and report your results here. The 1st week is the first 6 rounds. You can get the games from the Dutch site. My site has a link to the dutch site somewhere: "supertech.lcs.mit.edu/~dutch98" I suggest we start at move 20 to bypass the book and that we pick games at random in case a particularly tactical and forcing game needs to be seen, where a high match is likely. Can you give us more details Bob? I would like to either exonerate Bionic, show that there is room for doubt, or convince myself that they were indeed using Crafty just for my own edification before I form a personal opinion. - Don
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