Author: Harald Faber
Date: 12:47:50 05/15/02
Go up one level in this thread
On May 15, 2002 at 15:09:27, Vine Smith wrote: >On May 15, 2002 at 11:28:37, P. Massie wrote: > >>My version of Hiarcs8 (running in the Hiarcs8 GUI) has a 9% probability of >>playing Nc6 on move 2 as below. Following that it has a 100% probability of >>playing 3 ... Be7, although e5 is listed as a 0% probability. The opening book >>is exactly as arrived on the CD, with no changes. >> >>Paul >> >>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 > >This is weird -- between your response, and Taylor's and Faber's, it looks like >nothing has been cleared up. I'm almost tempted to buy the program myself just >to experiment more and see what exactly is going on here. >Other lines that Faber disputes Hiarcs would ever play are 1.e4 e5 2.Nf3 Nc6 >3.Bb5 a6 4.Bc4?!, which was posted by Walker under message number 228941 on this >forum, and 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Qc7?!, posted by Taylor under >message number 229441, game 3 of a series he conducted against Genius 3 on >separate machines. Under the Walker post, I also noticed Hiarcs playing 1.e4 c5 >2.b3, which isn't exactly terrible or anything (White probably can't get an >advantage after Black plays ...d6 and ...e5, though), but might be another >unusual line which Hiarcs shouldn't be playing. >Is it possible that different versions of Hiarcs were distributed, possibly one >with some kind of defect in program-book communication at first, followed by a >"silent" bug-fix soon after? > >Regards, >Vine At the moment it seems to me that Taylor and Massie do not know what all the values and columns in the opening book window mean. What I cannot explain is why such games with the described openings could happen. Maybe someone has adjusted some bars in the book options?
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