Author: blass uri
Date: 21:27:37 07/23/00
Go up one level in this thread
On July 23, 2000 at 22:03:07, Robert Hyatt wrote: >On July 23, 2000 at 02:07:29, Jeremiah Penery wrote: > >>On July 22, 2000 at 21:58:13, Robert Hyatt wrote: >> >>>On July 22, 2000 at 13:41:06, blass uri wrote: >>> >>>>[D]r3rk2/1p6/2p3P1/4nP1p/pP2p3/P1B1NbPB/2P5/5RK1 w - - 0 1 >>>> >>>>Deeeper blue planned to go to this position in move 37 but did not do it >>>> >>>>at depth 7(6) after 3 seconds it planned to play Rd8-a8 in order to get this >>>>position with evaluation of -24 >>>> >>>>Rd8-a8 failed low at depth 8(6) and deeper blue got evaluation of -54 >>>> >>>>Deeper blue solved the fail low problem with evaluation of -98 and changed its >>>>mind to another move b5 with clearly better evaluation. >>>> >>>>It is interesting to compare evaluation of programs after b5(the move that was >>>>played) and after Rd8-a8 the move that was not played to see if Deeper blue had >>>>a good reason to fail low. >>>> >>>>Uri >>> >>>I tried both ways. The score is pretty close to the same either way. After >>>b5, my score is -.8 after 15 plies. After Rad8 >> >>Uri posted the position AFTER DB would have played Rda8. The original position >>should've been this: >>[D]3rrk2/1p6/2p3P1/4nP1p/pP2p3/P1B1NbPB/2P5/5RK1 b - - 0 1 >> >>Then to search 37. ...b5 and 37. ...Rda8 and compare the scores. > > >I did both. I am not sure if I posted search results for both, but I did give >scores. Uri's position, and the position after playing b5 were very close in >score, for Crafty, although it took a couple of minutes for the scores to >equalize... From your post: "After Rad8 it likes Bxe5 with a score of +1.0 (remember I have a bit of asymmetry)." The right position is after Rda8 and not after Rad8 because the rook was at d8 in the game. Maybe the error was in the posting and not in the analyzing but prople can understand from your post that you did not analyze my position. Uri
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