Author: Mike Byrne
Date: 19:27:00 11/12/04
Go up one level in this thread
On November 12, 2004 at 22:24:04, Uri Blass wrote: >On November 12, 2004 at 22:08:18, Mike Byrne wrote: > >>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) >>> >>>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. >>> >>>There are no extensions, null move is off. >>> >>>An insights appreciated. I may be misunderstanding what is "supposed" o be >>>counted. >> >>I just remembered Crafty's perft command >> >>Black(1): perft 2 >>total moves=440 time=0.00 >>Black(1): perft 1 >>total moves=20 time=0.00 >>Black(1): >> >> I don;t understand the 440 either - but I must be missing something. > >Are you sure that it use the opening position? >Maybe it use the position after Nc3. > >I remember that Crafty calculated perft correctly some years ago. > >Uri was not at sttarting position just ran it from start and from a known position start: White(1): new White(1): perft 1 total moves=20 time=0.00 White(1): perft 2 total moves=400 time=0.00 White(1): perft 3 total moves=8902 time=0.00 White(1): perft 4 total moves=197281 time=0.08 White(1): perft 6 total moves=119060324 time=47.22 Aok known position: Black(1): r3k2r/p1ppqpb1/bn2pnp1/3PN3/1p2P3/2N2Q1p/PPPBBPPP/R3K2R w KQkq - White(1): perft 1 total moves=48 time=0.00 White(1): perft 2 total moves=2039 time=0.00 White(1): perft 3 total moves=97862 time=0.03 White(1): perft 4 total moves=4085603 time=1.51 White(1): perft 5 total moves=193690690 time=69.22 Aok
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