Author: Robert Hyatt
Date: 07:56:22 11/13/04
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) In Crafty I count _all_ nodes. This includes the nodes used to order the root move list prior to actually searching anything, among other things... > >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. Crafty uses alpha/beta remember, _not_ minimax. 400 would be the minimax number with no cutoffs.. > >There are no extensions, null move is off. > >An insights appreciated. I may be misunderstanding what is "supposed" o be >counted.
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