Author: blass uri
Date: 14:57:38 05/22/98
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On May 22, 1998 at 12:50:19, Mark Young wrote: >On May 22, 1998 at 12:24:49, blass uri wrote: >>other kind of important knowledge is what to search >>and I see that programs are very weak in this knowledge. >>for example no program I know discover that the position kasparov >>resigned >>against deeper blue is a draw. >>an interesting question is what program is less weak than others >>in the knowledge of what to search. >> >>Uri >--------------------------- >I don't know what will be the better concept in the long run. More >knowledge or less. Right now it seems better to just have the right kind >of knowledge with out slowing do the search to much. > > >Could you post the Kasparov deepblue position. And the correct move to >draw. >I read somewhere that Fritz 5 did find this move. I don't know how long >it took. >If you post the position I will run it and see if it does find this >move. I know fritz5 and Junior4.6 can find the right move after less than an hour (I do not remember the exact time but I think fritz5 was faster with less than 10 minutes on my Pentium200MMX with big hash tables and Junior needed half an hour) I know that chess system tal can also find the right move after a long time Rafael vaskuez posted it when he answered me about my question if some program can find it is a draw but even after more than 24 hours tal did not find it is a draw in spite of finding the right move. The question is if a program can understand it is a draw,otherwise it may play for this position instead of playing a better move. the relevant position is:1r6/5kp1/RqQb1p1p/1p1PpP2/1Pp1B3/2P4P/6P1 /5K2 black to move the right move Qe3 the last moves of the game were 44.Kg1-f1 Rb7- b8 45.Ra8-a6 black resign. I read that the 44 move was a mistake and better was Kg1-h1 but a computer cannot find it if it does not understand the position is a draw after Qe3. also if deeper blue understood it was a draw at move 45 it would play another move(maybe 45.Qd7+)
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