Author: Uri Blass
Date: 19:20:14 11/12/04
Go up one level in this thread
On November 12, 2004 at 22:04:34, Mike Byrne wrote: >sel 0 0 , ext set to 0 > >sd=1 > >Black(1): new >White(1): g > time surplus 0.00 time limit 22.50 (3:30) > depth time score variation (1) > 1 0.00 0.16 1. Nf3 > 1-> 0.01 0.16 1. Nf3 > time=0.01 cpu=0% mat=0 n=60 fh=100% nps=10K > ext-> chk=0 cap=0 pp=0 1rep=0 mate=0 > predicted=0 nodes=60 evals=20 50move=0 > endgame tablebase-> probes=0 hits=0 > SMP-> split=0 stop=0 data=0/128 cpu=0.00 elap=0.01 > >White(1): Nf3 > time used: 0.01 > >-> why 60 nodes here? > >( thought it would be 20) I can only guess that maybe the same node is searched again with different window. > >same settings, sd=2 > >Black(1): new >White(1): sd 2 >search depth set to 2. >White(1): g > time surplus 0.00 time limit 22.50 (3:30) > depth time score variation (1) > 1 0.00 0.16 1. Nf3 > 1-> 0.02 0.16 1. Nf3 > 2 0.02 -0.14 1. Nf3 Nc6 > 2-> 0.02 -0.14 1. Nf3 Nc6 > time=0.02 cpu=0% mat=0 n=119 fh=100% nps=10K > ext-> chk=0 cap=0 pp=0 1rep=0 mate=0 > predicted=0 nodes=119 evals=59 50move=0 > endgame tablebase-> probes=0 hits=0 > SMP-> split=0 stop=0 data=0/128 cpu=0.00 elap=0.02 > >White(1): Nf3 > time used: 0.02 >Black(1): > >-> why 119 nodes here > >I thought it would be 400. No reason for 400 alphabeta with no pruning and extensions means that you save time by not searching illogical lines and after finding that 1.Nf3 is 0.14 pawns for black and finding that 1.a3 e5 is 0.20 pawns for black you save time by not searching 1.a3 d5 because 1.a3 is not better for white than 0.2 pawns for black and finding it's exact score is waste of time. Uri
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