Author: Dann Corbit
Date: 16:01:43 06/04/99
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From a previous message, quoted in full: Subject: Re: Full width node count From: Andreas Stabel E-mail: anst@dolphin.no Message Number: 19304 Date: May 26, 1998 at 05:05:59 In Reply to: Full width node count Message ID: 19301 Posted by: Peter Fendrich At: jp@vd.volvo.se On: May 26, 1998 at 04:57:04 On May 26, 1998 at 04:57:04, Peter Fendrich wrote: >I recall that some time ago some of you (or in RGCC?) presented the node >count for a full width search, starting from the initial position going >a few plies down. Only valid moves and not more than 3-time repetitions. > >Does anyone have these figures? > >I have restructured my bitboard representation and the move generation >code so it would be of great help to have these figures. > >//Peter I've made a table for the first 7 ply with my own program. I've checked these numbers with crafty. Note that you need 8 ply to have a 3rd repeat cutoff. Here it is: Ply| Number of nodes | Total # nodes | # Nodes / Prev. # Nodes ---+-----------------+---------------+------------------------ 0 | 1 | 1 | 1 | 20 | 21 | 20.000 2 | 400 | 421 | 20.000 3 | 8902 | 9323 | 22.255 4 | 197281 | 206604 | 22.161 5 | 4865609 | 5072213 | 24.663 6 | 119060324 | 124132537 | 24.470 7 | 3195901860 | 3320034397 | 26.843 Regards Andreas Stabel
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