Author: Robert Hyatt
Date: 06:47:33 06/22/98
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On June 22, 1998 at 02:37:40, Roland Pfister wrote: >I was on saturday at the townhall to watch Anand - Fritz and perhaps >meet some computer chess freaks. > >But the only persons I knew were the two Matthiasses from ChessBase >and Frederic Friedel. Frederic was busy photgraphing or videoing, so >I had a small talk with Matthias W. and he told me that Fritz played the >open too, at that moment having 5 points out of 5. Not bad. > >Then Mathias F. arrived, he was the one to operate Fritz. I asked him >how they did parallize Fritz and he answered "MTDF", because they >did not have the time to do something clever like Bob. > >He also told me that they had tried out the SMP-Crafty on that machine >and that he thinks that there are still bugs in the parallel code: he had >seen a PV ending in mate, but with a value of 2.xx ! He should have asked. This is *not* a bug. Remember that Crafty has a capture-only q-search, and it is possible that a simple capture also mates the opponent, but crafty won't notice this. However, the PV-print routine does check after each move to see if the opponent is mated, so it can add the # to the mating move. I see this on very rare occasions, although I have not seen any game-related problems so far. But it isn't a bug, it is just odd behavior. Should tell him that SMP-crafty has been playing for a couple of months and looks very solid to me, currently hovering around 3000 in rating on ICC, unless I break something before you check. :) > >I told him that my program had played against a Crafty 15.10 (Killerchess) >and that that Crafty had spoiled a drawn rook ending into a loss, and >that it would be an explanation if that Crafty also ran on 2 processor NT >machine. > most commonly the opponent didn't have the right databases, or didn't have all of them, or simply didn't understand that position. But it isn't SMP related... >But then games started: you seem to know more from them than me as >a spectator. The hard/software that transfers the moves from the board >to a videoing system is from a company called "Lost Boys". >In the end phase of the first game with bishops of different colour the >black king vanished from time to time and also moves were taken back. >The company should call its system "Lost Kings" !! from other tournaments, that system has more bugs than seems reasonable. I've seen several events where a game stops getting relayed due to such glitches.. > >After a short break the second game started. No more vanishing pieces >and a relatively quick draw. I had the impression that Anand had enough >from computer chess that evening and a win of 1.5 to 0.5 was enough. > >Roland
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