Author: leonid
Date: 17:27:03 02/21/00
Go up one level in this thread
On February 21, 2000 at 13:41:01, Christophe Theron wrote: >On February 20, 2000 at 20:59:06, leonid wrote: > >>On February 20, 2000 at 14:39:24, Christophe Theron wrote: >> >>>On February 20, 2000 at 01:39:09, Drazen Marovic wrote: >>> >>>>What is Botvinnik's legacy to computer chess? >>> >>> >>>That to write a good chess program it's better not to be a strong chess player. >>> >>>Strong players have too much prejudices about how to write a chess program. >>> >>>In order to write a good chess program you must be ready to forget all you know >>>about chess, and re-discover it completely. Strong chess players have spent >>>years in learning the game and improving their play, so they are obviously not >>>ready to get into the process of forgetting everything. >>> >>>In the future, it will happen to me too. Chess programming will certainly >>>evolve, but as I have spent nearly 20 years in programming Chess Tiger, I'll >>>probably be unable to adapt myself to totally new techniques. I'll become a >>>dinosaur and young programmers will take over me - and all my peers. >>> >>>I hope this is not going to happen tomorrow, though. >>> >>> >>> >>> Christophe >> >> >>I believe that reality is even more simple that what you have said. Problem is >>not that much with the "big secret" to descover, in order to write the good >>chess game from scrach, problem is in the hardware speed. 20 or 30 years ago it >>was a shame and now it is only slightly better. Good game of today is able to >>see, without any artificial tricks, only 6 plies in few seconds in mid game. All >>the beauty of the best games is that they provide us with some decent chess game >>even before our hardware will permit it. Good game make all kind of sofisticated >>acrobatics in order to glance some next 4 or 6 plies deep into game, to make it >>enjoyable right now. But when the hardware will privide us with all those 10, 12 >>plies brute search to start with? Then writing the new good chess game from >>scratch will become as simple as doing our three years of college. >> >>Leonid. > > >Check your numbers. Most top commercial programs will compute 10 plies in the >middlegame in a few seconds (in say, less than 10 seconds) on current fast PCs. > >Most of them compute 13-15 plies at 40 moves in 2 hours in the middlegame. > > > Christophe What computer and how many average number of nodes have each ply? When the number goes considerably down it is possible for 8 plies to be executed in few seconds. No hash tables and nothing like null moves. I said about the most demanding part of the game. I know the normal speed of the top comercial games since I bought few ot them recently in order of finding where is my speed. I hope that I know what is the speed even if all those numbers are hidden by strange "extension" effect. If what I see is true, my numbers for 8 plies is on the level of the top games and for 6 plies is even much better. Leonid.
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