Author: Alvaro Rodriguez
Date: 02:45:28 08/14/00
Go up one level in this thread
On August 13, 2000 at 20:46:52, Robert Hyatt wrote: >On August 13, 2000 at 18:27:00, Alvaro Rodriguez wrote: > >>On August 13, 2000 at 18:16:30, Robert Hyatt wrote: >> >>>On August 13, 2000 at 15:21:17, Alvaro Rodriguez wrote: >>> >>>>On August 13, 2000 at 15:09:02, Robert Hyatt wrote: >>>> >>>>>On August 13, 2000 at 13:01:27, Jon Dart wrote: >>>>> >>>>>>>This is an interesting move IMHO as the bishop doesn't get lost at all , it >>>>>>>simply can't participate in the game anymore ; in fact it lasts until the 46th >>>>>>>move when white finally wins the bishop . It seems to me without special code >it is impossible to avoid this ( for example Fritz 6a would play like that >>>>>>> too) . >>>>>> >>>>>>Crafty has had special-case code to avoid this kind of move for some >>>>>>time. >>>>>> >>>>>>--Jon >>>>> >>>>> >>>>>Even more interesting, because it understands that problem, it will leave >>>>>the pawn 'hanging' because it thinks no one is silly enough to take it. If >>>>>a program doesn't have that bit of knowledge, it almost looks like Crafty >>>>>tries to 'tempt it'. :) >>>>> >>>>>I see that against more than one program on ICC, pretty regularly... >>>> >>>>Is it hard to implement that in a program? Because maybe other programmers >>>>should think about it, because like you said, no one is silly enough to take it >>>>:-) >>>> >>>>When you see those games in ICC, does crafty win them ? >>>> >>>>Regards, >>>>Alvaro >>> >>>Most of the time it wins. On occasion there is some long and complicated way to >>>safety get the bishop out. Which means Crafty has simply gambited a pawn away >>>for nothing. But these cases are very rare. A bishop at a2, with a white pawn >>>at b3 that is supported, is in great trouble. >> >>Big trouble for sure.. Is it hard to implement that in a program? If it is easy, >>I don´t understand why programmers don´t use that in their programs. Some does, >>but others don´t.. Maybe they think that it´s a good move. I don´t know.. >> >>Regards, >>Alvaro > > >I think that it is easy to lull yourself to sleep with the argument "this is so >rare it isn't worth handling.." There are many such cases. If you do that for >all of them, suddenly it is not rare, it is commonplace to see one of those >holes show up in every game. I think that plugging such holes, when they show >up, is a critical thing to fix. If you keep doing this, sooner or later you >don't have any holes left to plug... Robert, do you have some games from ICC where Crafty´s opponent played Bxa2 and Crafty responded with b3 ? Maybe it´s hard to get them.. Regards, Alvaro
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