Author: Enrique Irazoqui
Date: 14:55:39 02/05/00
Go up one level in this thread
On February 05, 2000 at 17:25:36, Thorsten Czub wrote: >On February 05, 2000 at 09:41:23, Enrique Irazoqui wrote: > >>>>>I am interested to know if the blunder Qxb2 was part of Junior's new book. > >Although in the new book Qc7 is written, my junior6a is out >of book and plays Qxb2. I don't know why this happens. the >book-options are correct, after pressing OPTIMAL. >No idea why the book gives Qc7 but the machine is out of book. >Which book is it following ?? is Qc7 maybe only PASSIVE and never >played active due to some reasons i don't know ?! > >>>> Yes, 9.-Qxb2 is to be found in Junior's new book. The move is followed by "?", > >As i said: junior6a plays the move with computation. Be3 throws it out >of book although there is Qc7, Qa5 and Qxb2? in the book. >I have no idea why junior is not playing Qc7 out of book. maybe this >move is only played passively and not actively ?? >Any expert there ? > >>>If this is the case than it is strange that Junior played this move. > >why is junior computing and not playing the book-move ? > >>The book of Junior 6 shows the following: > >>9...Qc7, 100% probabilities >>9...Qa5, 0% probabilities >>9...Qxb2? 0% probabilities > >right. but junior computes. You are right. I just checked and Junior starts computing and picks Qxb2 instantly. What I don't get is why Junior drops the book when the line is in there. >>Since Qxb2? has 0% probabilities, it couldn't have been played by Junior, at >>least not if the option "optimize book" was enabled as it should have been. > >Nonsense. the optimize book options have been registered by the menue, >game-minimum is now 2 and the last 2 sliders are completely to the right. >variance of book is nearly to the left, would say 10 %. >The book-optimization has been done. it's easy, just click on the button. > >>Enrique > >>>I found that Junior5.9 can avoid Qxb2 by search at depth 16 and I thought that >>>Junior6a should be better. > >Nonsense too. Junior6a plays: > >Zarkov4.5L - Junior 6.0 >r1b1kb1r/p3pp1p/1qpp1np1/8/2B1P3/2N1B3/PPP2PPP/R2Q1RK1 b kq - 0 1 > >Analysis by Junior 6.0: > >9...Dxe3 10.fxe3 Lg7 > +- (5.75) Tiefe: 3 00:00:00 >9...Da5 10.Dd4 > ± (0.72) Tiefe: 3 00:00:00 >9...Dxb2 10.Ld4 > = (-0.01) Tiefe: 3 00:00:00 >9...Dxb2 10.Ld4 > = (-0.01) Tiefe: 6 00:00:00 >9...Dxb2 10.Ld4 > = (-0.01) Tiefe: 9 00:00:00 1kN >9...Dxb2 10.Dd3 Sg4 > = (-0.15) Tiefe: 12 00:00:00 63kN >9...Dxb2 10.Ld4 Db8 11.Lxf6 exf6 12.Dd4 Le7 13.Tab1 Dc7 14.Tfd1 > = (0.07) Tiefe: 15 00:01:37 36075kN >9...Dxb2 10.Ld4 e5 11.Sb5 exd4 12.Sc7+ Kd7 13.Sxa8 Dc3 > = (0.21) Tiefe: 17 00:07:00 148541kN > >(Zarkov4.5L, 05.02.2000) > >until the end. > >Any ideas what has happened ?? No idea. But Junior 6a does play Qxb2. Enrique
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