Author: Jeremiah Penery
Date: 17:22:01 07/28/00
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On July 28, 2000 at 19:12:55, blass uri wrote: >On July 28, 2000 at 18:25:17, blass uri wrote: ><snipped> >>Fritz5.32 that is not the latest Fritz gives the following evaluation: >>Qxc6 -1.62 depth 14/30 >>fail high Qe3 -1.59 depth 14/41 >>solved fail high with -1.50 score. > >I can add that the valuation at depth 16 also failed high and the failed high >was solved with -0.81 score at depth 15/45 I suggest an experiment: Let Fritz continue to search even deeper, say to 20 plies or more, and then report about what Fritz thinks. If it ever finds the drawing line, I will (in the style of Dann Corbit :) write a poem in Fritz's honor, extolling its greatness of search and evaluation. I did this experiment with some versions of Crafty and some strange things happened: It kept failing high on Qe3 until it found a draw-score (at ply 21 or so), but it was not the real drawing line, so it started failing low again because it could never find the right line. It eventually failed back to -1.5, but I was forcing it to search only Qe3, so I couldn't know if it would change its mind or not. There is no way to know that DB didn't search the Qe3 line very deeply or not, but I contend that no computer will ever find the draw because there are quiet moves near the end of the line.
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