Author: Uri Blass
Date: 10:40:46 07/14/02
Go up one level in this thread
On July 14, 2002 at 10:01:26, Robert Hyatt wrote: >On July 14, 2002 at 08:27:47, Uri Blass wrote: > >>On July 13, 2002 at 18:15:33, Robert Hyatt wrote: >> >>>On July 13, 2002 at 12:46:37, Uri Blass wrote: >>> >>>>On July 13, 2002 at 10:47:45, Robert Hyatt wrote: >>>> >>>>>On July 12, 2002 at 21:34:43, Telmo Escobar wrote: >>>>> >>>>>>On July 12, 2002 at 14:29:17, Louis Fagliano wrote: >>>>>> >>>>>>>He seems to have replaced John van der Wiel as the leading computer killer (at >>>>>>>least on this board). Rebel managed to overcome van der Wiel's anti-computer >>>>>>>chess style and beat him in a challenge match. Since Ed Schroeder has retired >>>>>>>from playing challenge matches against humans, is there anyone with a copy of >>>>>>>Rebel Century 4.0 and a fast computer (sorry, mine's only 500 MHz) and would >>>>>>>want to challenge Mr. Nemeth to a match? >>>>>>> >>>>>> >>>>>> Try to win using his strategies and you'll see. >>>>>> >>>>>> I'd like to meet Nemeth in the Fritz 7 server, to have him playing any of the >>>>>>CB engines I have in my computer. >>>>> >>>>> >>>>>You might be surprised. There was a player named "mercilous" on ICC that >>>>>wrecked holy hell on _all_ programs a couple of years ago. >>>> >>>>You forget one important thing and that the programs of today have better >>>>hardware and it make things harder for humans. >>>> >>>>Of course you can win after enough tries but this strategy is not going to work >>>>in most of the cases and GM's are not going to try it when they know that they >>>>may have maybe probability of 10% to win the machine and 90% to get problems. >>>> >>>>Uri >>> >>> >>>Better hardware won't do a thing against "mercilous". He played 1 0, 2 0 and >>>3 0 games. At those time controls, no hardware is fast enough to see that open- >>>ing the file will get you mated. >> >>It is dependent on the position and the software. >>I am also more interested in slower time control and not in 1 0 or 2 0 games. >> > >So am I. I don't pay a lot of attention to "blitz" games. I haven't for >several years now... > > > >>I do not like the solution of crafty because it means that the program is not >>going to capture even in cases when it is good to capture. > >It depends. It has several "qualifications" that must be met. If the search >can find a way to break one of the qualifications, it will not make the capture. >And in cases where the capture is good, it generally means that the opponent >has simply blundered anyway, if it isn't a real trojan-horse attack. Not >capturing will probably not lose the game... > > > >> >>I think that a better solution is to do special extensions in positions when the >>trojan horse sacrifice is relevant. > > >Not so easy. The capture _starts_ the variation. Now you have to recognize >other features (queen on the board, can get to the h-file, program's king has >castled, opponent's has not, opponent has a rook on the h-file or one can get >there quickly, etc. You will be extending a _lot_ even in non-trojan positions. I agree that it is not easy but if you do the special extensions only in positions when a move like hxg5 is possible then you are not going to extend a lot in non trojan positions. Uri
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