Author: Roy Eassa
Date: 09:04:00 08/28/01
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On August 28, 2001 at 09:26:10, Robert Hyatt wrote: >On August 27, 2001 at 16:50:36, robert flesher wrote: > >>Tiger 12.0 running on a mere pentium 850mhz with 256 mega of ram Sees that if >>white exchanges both rooks followed by moving the king and playing b4 and a4 >>wins. Anyone who still has tiger 12.0 should be able to confirm this. I have >>gambit2.0 and tiger 14.0, but as ive posted before i prefer tiger12.0. > > >What I am trying to ask is this: > >1. from the original position, does CT understand that trading all the >rooks is bad? IE a 5-6 ply search should let it see the rooks coming off. >And after that PV/score is displayed, does it show white is winning? > >2. After playing the moves that trade the rooks off, there are no pieces >left. It is pretty easy to search to 20 plies here, and that is more than >enough to see that white queenside majority turning into a white outside >passed pawn. Does it realize the outside passer is winning? > >If it doesn't realize white is winning after searching just deeply enough to >see the pieces coming off, then it is going to have trouble in these kinds of >endings, which are pretty common. If it does realize white is winning in case >2, that means it probably understands the outside passer, or at least it knows >that one side having a passer is probably winning. > >The more interesting question is "does it understand that the white majority is >_also_ winning if there are no pieces left, because the majority will turn into >a distant passer later in the game"??? My brief experiments show that the answer is "No" to 1 and "Yes" to 2 for both current Tigers and for Fritz 6 & Junior 6.
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