Author: Robert Hyatt
Date: 22:02:08 01/23/99
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On January 23, 1999 at 11:52:41, Frank Quisinsky wrote: >Hello, > >sorry for my bad english. > >I don't understand the excitement. > >I have played over 400 games with Crafty. A very beautiful program. Compliment >Mister Hyatt, also for your informative contributions in the Newsgroups. > >The Source code of Crafty is free. > >Other programmers use this code and that, OK is. Or why the code is free! > the code is 'free' so that the things done in crafty can be seen and used as examples of things to try, things not to try, etc. But that is a _far_ cry from taking a program that is pretty mature, and entering a slightly modified version of it in a tournament where the other participants spent their many man-hours of work to write their own code, And then they run into a program that is 2x faster than theirs because that program uses a parallel search developed by someone else. That was my major problem with the Dutch championship. To take crafty as a starting point to modify is fine. But that was _not_ done. Just compare the SMP version to the non-SMP version, you will see that someone didn't spend a year or two making changes to an earlier version and then quickly merge those changes into 16.x code. It is _not_ that easy. But that isn't even the end of this, as I would still say it is unreasonable for someone to copy the search of crafty, in its entirety, along with the parallel stuff, and then use that in a competition. Or is it ok to modify perhaps 1% of a program (based on man-hours of work invested in the original development vs the time spent on changing something here and there) and then use this in a tournament? Past ACM and WCCC events have said _no_. I'm happy to see others use crafty as a starting point for their own development. I'm not so happy to see them then enter this and compete against those that are doing _original_ computer chess development. In that case, why not just ask and enter crafty with my permission, since that is _really_ what is playing anyway? >Hans was honestly and admitted to use parts of this code. Are other programmers >also so honest? > >Hans think a very nice human being and I to attack him is not OK !!! > >Best wishes >Frank
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