Author: Tony Werten
Date: 03:46:55 02/01/01
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On January 31, 2001 at 07:17:23, Severi Salminen wrote: >>Is this only in odd positions or do you notice ebf going up with dept as well ? >> >>In my program it seems impossible to keep ebf below 3 if dept becomes bigger >>than say 12. ( except for endgame positions ) > >How do you calculate EBF in your program? What kind of EBF you get in Vincent's >position (position after 1.e4 e5 2.d4 d5)? I get 3.6 in 9 ply search. I'd like >to just compare. I've found that the easiest way is to see how much time it costs to finish the iteration. Times for XiniX on AMD 333( yes, I know I need a faster computer) ply: 5 time: 2s ply: 6 time: 3s ply: 7 time: 7s ( 2.3 * ply 6 ) ply: 8 time: 18s ( 2.6 * ply 7 ) ply: 9 time: 41s ( 2.3 * ply 8 ) ply:10 time: 98s ( 2.4 * ply 9 ) ply:11 time:217s ( 2.2 * ply 10) ply:12 time:500s ( 2.3 * ply 11) There doesn't seem to be a big odd/even difference, the bf looks quite stable. After ply 12 it generally goes up. Tony > >Severi
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