Author: Uri Blass
Date: 07:27:40 09/11/01
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On September 11, 2001 at 10:19:31, Robert Hyatt wrote: >On September 11, 2001 at 08:51:20, K. Burcham wrote: > >> >> >> >> >>i understand your explanation for the Rg8 and the Rf5 moves bruce. >>that deep blue might have seen a loss in both of those lines. >> >> >>i only use the word blunder when during normal game mode or in >> analysis mode the score will jump maybe 2 or more points, >>when the next move is made. >> >>for example in this deep blue blunder SOS scores this position >> black is down -1.65. at depth 15. you can see in the analysis that >>the score imidiately jumps and climbs to +6.41 for white with 44. ...Rd1. >> >>in the case of the deep junior vs shredder, in the world championship >> i have analyized the 5+ change in score. this was not a single >> move blunder like defined above. in the deep junior game >> shredder didnt have a clue of the deep pawn value and its ability >> to stop them. then when it finally saw what was really going on >>shredder started adjusting its eval very quickly, and the score jumped >> 5+ points. >> >>and i am aware that you already knew all of this----i was just explaining >> my logic for my applicaton of the word blunder. > >this just means that SOS doesn't understand the position yet. When I ran >this, I got +3.5 or so. On Rd1 my score gets significantly worse. Which >simply means that they probably searched the alternatives deeper than I did >and found that they were bad also. I rememeber that they admitted that Rd1 was result of a bug. Their score for Rd1(-1.80) does not make sense in every reasonable depth They did not play Rd1 because they found that the alternative is worse. Uri
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