Author: Harald Faber
Date: 11:42:40 05/15/02
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On May 15, 2002 at 08:13:53, Chris Taylor wrote: >On May 15, 2002 at 05:14:21, Vine Smith wrote: > >>Hi -- >> >>This is in reference to some issues about the book, particularly a recent post >>by Harald Faber. I had seen a game posted (at game in 30 minutes) where Hiarcs >>as Black played 1.e4 e6 2.Qe2 Nc6 3.Nf3 Be7? Faber says that when he looks at >>the Hiarcs book (I think he's just using the Chessbase GUI function), it says >>Hiarcs will always play 2...c5. For this purpose, the time control and system >>speed are unimportant, just try playing an actual game from the position after >>White's second move, and see if it immediately responds with 2...c5. If so, I >>suppose the game I saw posted was played with a different book, or is spurious. >>If not, then the program is not understanding its own book correctly. >>Thanks in advance, if you have the time for this. >> >>Regards, >>Vine Smith > >Playing against Hiarcs 8 with >1. e4 e6 >2. Qe2 c5........It played this move sort of expecting either f4 or Nf3 as >Whites third. Nimzo 7.32 gui......Identical in H8.gui > >Looking for 2....c5 and browsing the book we see >N=4182 and 50% chance of being played >2....Nc6 has N=261 with 49% >Also in is 2....Ne7 N=257 50% > >The plot thickens.. > >Chris I can send you a screenshot if you don't believe me. Your information is not complete. What you see is not the move preference. To see with which probability the moves are played you have to take a look at the very right column! The header looks N % Av Perf Fritz Prob [%] The Fritz column shows some learning values, the Prob column the original move preferences and the final column, [%] shows the move preference considering the Prob mixed up with the Fritz learning value. So with this information - which should be basic for all who try to talk about the openning book - look again at the move preferenes in the last right column. There is only 100% once, and it is for 2...c5. If anyone does not believe me and/or needs a screenshot, no problem for me. This is definitely the original Hiarcs 8 book coming on the CD-rom. So further discussions should be obsolete.
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