Author: Uri Blass
Date: 13:07:04 09/08/01
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On September 08, 2001 at 15:56:25, Gian-Carlo Pascutto wrote: >>No >>you only gave evaluation that no program could find and it is not exactly what I asked. > >The original poster asked: > >in other words i am looking for any positions > that my system will not choose deep blues next move. or does > not see deep blues next move as an equivelant eval. > >This positions fits in _perfectly_. > >>I asked for a *good* move from deeper blue games that no program can find and >>you have to convince me that the move is good. > >How do I do that? By showing you a line where another comp agrees with >the judgement? Thats exactly what this position should NOT allow! > >My own judgement? After c5 the bishop is stuck. so there ;) > >>One way to convince me is if programs can find the move after a lot of hours and >>in this case I am going to believe that the move is probably good. > >That would be interesting. From the comments in the earlier discussions >I gather the solution is on the order of 30 or more ply. > >How long would that take with a normal chessprogram? A few months? > >Perhaps if I ever get a crafty with SE working good I could try >to let it run on it for a week or so. I believe Bruce has done >stuff like this before? > >Besides, why would I bother? I just dug this up as something a >normal program CANNOT find and DB/DT could. There are a lot of mistakes that deep thought could find and the top programs of today cannot find. It proves nothing. The evaluation is simply not convincing and I did not see a tree to convince me. There are combinations that program cannot find and I can be convinced that they are correct by analyzing and going forward and backward. This is certainly not one of them. If singular extension can help then Ferret or another program with singular extensions could also see winning a piece after a lot of time. I bet that Crafty with singular extension and it is not important how you implement singular extensions cannot see winning a piece in that position even after 24 hours. If I am right than it means that there must be a bug in Deep thought. Uri
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