Author: Jonathan Lee
Date: 10:52:59 03/02/01
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On March 01, 2001 at 14:29:47, Jonathan Lee wrote: >On February 28, 2001 at 13:49:35, Jonathan Lee wrote: > >>I have found some comparisons of 6 or 7 games when the machine loses at least (4 >>GHZ or greater) against a human. >>I hope this becomes an inspiration to the Computer Chess Club. >> >>1. There are no pawn or piece captures in the first ten moves. I guess that >>will be revised precise definition of a closed game. >>2. Another critical factor is the opening. With the exception of the Stonewall >>Defense there are no common denominators in the closed openings. The Stonewall >>happened only twice. >> My observation is to find all opening libraries that have closed games and >>look more closely. (Preventing closed positions) or (the fewest number of >>closed openings) as much as possible may be a high priority. >>3. With the exception of one game the game ends in less than 50 moves. The >>computer cannot tackle the complex middle game, thus losing material. The >>computer tends to understand end games, thus drawing or winning games. >> The exception is Shirov versus Fritz on June 22, 2000; the game lasted 59 >>moves. The last 10 to 15 moves were lightning quick coming from Shirov. CORRECTION: MANY GAMES WERE RESIGNED BEFORE BEING MATED AND COULD HAVE LASTED MORE THAN 50 MOVES OR 100 PLY. Jonathan (106 message) >>4. With the exception of one game the original queens are used. (This excludes >>pawn promotion turned into queens. What I mean is the original queens are a >>much greater factor than passed pawns.) >> The exception is Kasparov versus Deeper Blue game one in 1997. >> Another possible exception: Leko versus Fritz had one passed pawn which was >>something like a mate in 8. >>Jonathan (101 message) >5. Of those 7 losses humans were white 5 times. Of those 5 losses, 2 of them >were the Stonewall Defense. > Obviously, the other 2 games is when human was black. >6. Of those 7 losses it was Fritz 4 times, Junior 2 times, and Deeper Blue >once. > Of those 7 wins, one from Kasparov (Deeper Blue), two from Kramnik (Junior >and Fritz), one from Leko (Fritz), one from Shirov (Fritz), one from Piket >(Junior), and one from Alterman (Fritz). >If you know since 1997, any games with a parallel processor (4 GHZ or greater) >not mentioned that resulted with losses please show in this thread. >Jonathan (102 message)
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