Author: Bruce Moreland
Date: 18:56:48 01/19/00
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On January 19, 2000 at 18:00:09, Robert Hyatt wrote: >I don't remember any problems. I found Be4 after a 21 ply search that took >almost 2 days. Your program found h5 that Kasparov said no program would play. >I didn't (myself) spend a lot of time on axb5 but didn't see anything remarkable >about that.... > >So what strange move can't we explain or produce? I don't remember this. I remember that Be4 had approximately the same score as the other move, but I don't think that anyone "found" it with their stock program. This whole thing is some serious bad deja vu. If Amir hasn't said it yet, he's going to say that the move he's interested in is axb5, not Be4. We went through this all before, at least twice. Mine couldn't find either of the DB moves but I don't think that it matters. The initial suggestion was something to the effect of: "How could a computer do that! It's giving up a chance to win three pawns!" But I do know that the score is not anywhere near +3 if you search long enough, and I don't think it is unbelievable that a computer could do what DB did. The value of the position closes on zero if you search long enough, and I'm willing to believe that DB burped somewhere on the way to zero, and out came something a little strange. Certainly this is more believable than the alternative, which is some deep conspiracy to cheat. That's just irresponsible, I think. I can't believe that some human analyzed some other line, got insanely worried that the computer would fall into some awful tactical line, cheated, and then covered it up. If you've been working on something like this for a long time you aren't going to lose confidence in its ability to spot tactics, and you certainly aren't going to overrule it on a tactical issue based upon your own analysis, especially when you can't verify your analysis using DB, since it is playing. bruce
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