Author: blass uri
Date: 09:17:27 11/30/98
Go up one level in this thread
On November 30, 1998 at 11:18:05, Robert Hyatt wrote: >On November 30, 1998 at 10:36:19, blass uri wrote: > >> >>On November 30, 1998 at 09:27:54, Dave Gomboc wrote: >> >>>On November 29, 1998 at 21:39:56, Geo Disher wrote: >>> >>>>11/25/98 5:40am 19/19 Qb6 eval=1.06 >>>>11/25/98 9:30pm 19/49 Qb6 eval=1.00 >>>>11/29/98 6:57pm 21/21 Qb6 eval=.88 >>>> >>>>Best line is 36)Qb6 Qe7 37)axb5 Rab8 38)Qxa6 e4 39)Bxe4 Re8 40)Kf1 Qxe4 >>>> >>>>It is interesting that the longer Fritz thinks the lower the eval for this pos. >>> >>>This is pretty interesting. Fritz is sort of noted for its pawn-grubbing, isn't >>>it? >> >>No, Fritz is not materialistic >>It did an impressive right sacrifice of a rook for a knight against Genius5 in >>mclane's summer tournament because of this reason. >>It does sometimes also speculative wrong sacrifices because of this reason. >> >>Uri >> >>> >>>Dave Gomboc > > >All I would add is that you have to look *very carefully* at these "positional >sacrifices". IE I watched a game on ICC where Crafty was playing Rebel 10, and >was ahead an exchange in an ending. Out of the clear it played rxn giving the >exchange back to wreck rebel's pawns. But in fact, it had seen deep enough that >this wasn't "positional" at all, it was tactical, because the king invaded and >it did this sac knowing that it wasn't giving up the exchange, rather it was >winning the game. > >I've seen lots of what appeared to be positional sacrifices to the human eye >that are really tactical shots instead... Before I try to classify something >positional, I try to take the program and make sure it didn't see something >tactical... I am sure that in the case of the game against Genius5 in mclane's tournament it did not see something tactical Uri
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