Author: Robert Hyatt
Date: 21:54:00 01/23/99
Go up one level in this thread
On January 23, 1999 at 18:16:45, Johan Havegheer wrote: >On January 23, 1999 at 10:52:02, Robert Hyatt wrote: > >>On January 23, 1999 at 10:12:36, Djordje Vidanovic wrote: >> >>>On January 23, 1999 at 00:07:11, Bruce Moreland wrote: >>> >>>>Isn't Bionic Impakt Crafty? Does anybody know what changes have been made to >>>>the program in order to distinguish it from the original Crafty? >>>> >>>>bruce >>> >>>I have been asked by Frank Quisinsky to translate his statement regarding Bionic >>>Impakt. Here it is: >>> >>>"Persönlich habe ich mich beim Dutch Open 98 (Bionic Impakt wurde dritter) >>>sehr lange mit Hans Secelle (Programmerer) unterhalten welcher mir >>>versicherte, das Bionic kein Crafty ist. Bionic Impakt beruht zwar auf dem >>>Source Code von Crafty (Version 9.26 und 15.20), jedoch wurde das Programm vor >>>einem Jahr völlig neu überarbeitet. Ferner hat Hans seine eigenen entwickelten >>>Ideen implementiert. Unter anderem sind die Bewertungsfunktionen, wie z. B. >>>Figurenfelder, Angriffsheuristiken, Bewertung an der Wurzel als auch das >>>Eröffnungsbuch und dessen Zeitkontrollen von Bionic übernommen wurden. >>>Persönlich schätzt Hans die taktischen Fähigkeiten gegenüber Crafty etwas >>>schlechter und die positionellen etwas stärker ein. Als Beweis dient hier >>>z.B. der LCT II Test welcher, völlig unterschiedliche Ergebnisse im Vergleich >>>zu Crafty aufzeigt. Ich habe das überprüft und Bionic hat wirklich nichts >>>mit Crafty gemeinsam." >>> >>>I spent lots of time with Hans Secelle during the Dutch Open 98 (Bionic placed >>>third) trying to make sure that Bionic is not Crafty. Bionic is based on >>>Crafty's source code (versions 9.26 and 15.20) but the program was completely >>>rewritten, which took a year. Furthermore, Hans implemented his own, original >>>ideas. Among others, the new evaluation functions such as piece squares, attack >>>heuristics, root-evals, as well as the opening book and time controls that were >>>taken over from Bionic [I presume the previous version of Bionic that had been >>>around for quite some time, say since 1991, Dj.V.]. Hans estimates that the >>>tactical abilities of Bionic are not on a par with Crafty, while its positional >>>play is somewhat better. The LCTII test can be used as evidence for this, as it >>>gives completely different scores when compared with Crafty. I have checked >>>this out and Crafty and Bionic have really nothing in common. >>> >>>Regards, >>>Djordje >> >> >>This is wrong. The version of bionic that playedin the first 1/2 of the >>Dutch tournament matched crafty _exactly_. Every move of every game except >>for 1 or 2. >> >>But that isn't nearly so important as one key thing they 'get'... that being >>a parallel search that no one else has. Which gives them a 2x-3x speed boost >>over everyone else. So to say 'it isn't crafty' is baloney. A few eval changes >>don't make a new program. I've also pointed out that anybody that takes the >>crafty source is _required_ to make that source public as part of the freeware >>project. They've never done this. IE I'd like to see a source version >>released that will _exactly_ match the Dutch tourney moves. _then_ we could >>_know_ what is different. They were going to do this, supposedly. But nothing >>has been done. > >There !!! never !!! has been a change in the program version during the dutch >championship. Hans gived me a copy of Bionic on the last day and i did some >tests to prove that Bionic IS CERTAINLY different from Crafty. >I took the first 15 positions off the CCC III tests. (downloaded from the >rebel site). Here are the results : > >AMD-K6-2-300 64Mb SDRAM >3min/move > > Bionic Impakt Crafty 15.20 >Testnr Move Score Depth Move Score Depth >1 Bd3 0,57 11 Re1 0,31 11 >2 Nd4 0,21 11 Re3 -0,06 11 >3 Qc2 -0,07 10 Qc2 -0,25 10 >4 Bh6 0,07 11 Bh6 0,22 12 >5 dxe6 -0,54 11 Kh1 -0,66 11 >6 h5 -1,78 11 h5 -1,56 11 >7 ?Kh7 0,56 10 ?Kh7 0,53 10 >8 ?b5 -0,54 11 ?b5 -0,24 10 >9 ?Qe7 0,95 11 ?Qe7 0,57 12 >10 ?Ne5 -0,32 10 ?Re8 0,07 10 >11 d5 0,64 10 Bg5 0,48 9 >12 e6 0,56 12 e6 0,51 11 >13 Ng3 -1,62 9 Ne7+ -1,51 10 >14 Nxf5! -0,58 11 Rxe8+ -1,81 10 >15 Ne5 0,54 11 b3 0,28 11 > >Bionic plays another move than Crafty in 8 testes on 15 !!!! >Sorry for my rather weak English. > >Johan Havegheer (Bionic test team) All I can say is that the games playedon the first weekend of the tourney matched version 16.0 (or .1) perfectly. The games played on the second weekend were _way_ different. I can only draw one conclusion...
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