Author: Mridul Muralidharan
Date: 07:18:48 11/04/03
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Hi, In this specific position , proper evaluation that an unstoppable pawn duo at seventh rank gets a high value should be sufficient. But that is not the main problem - this would be the end result of a variation - and if this position is not given the sufficient bonus it requires then it could have bad instabilities. example : even if the white rook is absent - still white is up - but definitely by more than atleast 2 pawns here. This is indeed one of the problems that I faced ,and I did mention it in one of my previous posts on blind dependence on stand-pat. Since I also do "threatening moves" in qsearch - this is indeed an even major problem for me. I dont have a solution yet - though lot of hacks to get this reduced and in most positions , eliminated : (like if previous was a threatening move , then see how good the responses are before trying to see whether the standpat should be used , etc). But most of these have to be seriously contained , or they will blow up the qsearch. I hope you have tried out the idea of null-move in qsearch - I found it in the CCC archives. Interesting idea - but was just too bad for mess. Maybe it will be better for you. The only decently generic way to eliminate this problem was better evaluation - especially due to threats like hung / pinned pieces , king safety , etc. But in this position , esp more for position with the modification that i mentioned - i think it will be tough to get it right. Regards Mridul
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