Author: James T. Walker
Date: 15:50:48 06/10/02
Go up one level in this thread
On June 10, 2002 at 10:02:28, Uri Blass wrote: >On June 10, 2002 at 09:54:24, James T. Walker wrote: > >>On June 10, 2002 at 07:50:14, Helmut Conrady wrote: >> >>>On June 10, 2002 at 07:01:03, Russell Reagan wrote: >>> >>>>On June 10, 2002 at 06:41:07, Benny Antonsson wrote: >>>>>Like this.... My stupid program wants to take the rook ! >>>> >>>>Since the position you posted isn't exactly legal since you have like 20 >>>>something black pieces on the board, I tried this position: >>>> >>>>[D]4b1r1/4k3/1rp1p1p1/1pPpPpPp/pP1P1P1P/P2K4/3B4/8 w - - 0 1 >>>> >>>>Apparently Fritz isn't any smarter than your program, because it wants to take >>>>the rook too! Fritz sees this as -4.71 in favor of black after cxb6, and it sees >>>>the position as -8.84 in favor of black after the "next best move" Be3. I always >>>>knew that deep down I was better than my computer! >>>> >>>>Russell >>> >>>Some times ago someone created positions like that to show the "AS" of the >>>programs (artificial stupidness"). :) >>> >>>Helmut >> >>Yes, the problem with this position is that the programs see themselves down by >>aobut 10 points and taking the rook makes them down by only 5/6 points. :-) >>They would have to see 100 plies to see the draw (50 move rule). >>Jim > >I suspect that the may see after 60 or 70 plies that cxb6 is losing more than 10 >pawns so they do not need to search 100 plies forward in order to find the right >move. > >Uri Hello Uri, Well that's a possibility but I let Shredder 6 run untill it hit 39/42 plies. I think that means it was hitting the total in selective search of 81 plies. In any case that took about an hour. So for the time being I think if you want your program to solve this position you should look for a way to make it smarter not faster. Jim
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