Author: Uri Blass
Date: 04:40:59 04/30/05
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On April 30, 2005 at 01:17:01, Andrey Popov wrote: >Ruffian 1.0.5 gives the information about wins, draws and losses percentage for >main moves on each position from its opening book. >For example, on the initial position Ruffian shows: > > Move Played Prop[%] Score[%] Learn + - = > d4 9911 42.81% 55.46% 1.00 28.46% 17.55% 53.99 >* e4 8082 35.44% 56.30% 1.00 30.10% 17.50% 52.40 > Nf3 2609 11.30% 55.63% 1.00 27.41% 16.14% 56.46 > c4 2228 9.83% 56.67% 1.00 30.25% 16.92% 52.83 > g3 118 0.45% 49.15% 1.00 24.58% 26.27% 49.15 > b3 31 0.12% 53.23% 1.00 35.48% 29.03% 35.48 > Nc3 6 0.02% 50.00% 1.00 33.33% 33.33% 33.33 > f4 9 0.02% 27.78% 1.00 0.00% 44.44% 55.56 > c3 4 0.00% 25.00% 1.00 25.00% 75.00% 0.00 > b4 3 0.00% 33.33% 1.00 0.00% 33.33% 66.67 > >However, Ruffian's book is not big. >If I want to know, what move is best to punish some wrong move, Ruffian fails. >For example, if I want to know what to do after 1.d4 e5?, Ruffian 1.0.5 shows: > > Move Played Prop[%] Score[%] Learn + - = >* e4 9 100.00% 50.00% 1.00 22.22% 22.22% 55.56 >Book: cache 74.34%, time 0.15 sec >Suggested move: e4 > >Which FREE engine has bigger opening book with the same possibility (i.e. shows >the number of wins, draws and lossses)? It seems that Ruffian has some bug. I cannot believe that 2.e4 was played after 1.d4 e5 in the games that Ruffian use Maybe 2.d4 was played after 1.e4 e5 but it is not the same. Movei's book is based on games but it does not show statistics for result of the moves but only howmuch times the moves was played. I may consider to change it to show statistics for book moves. Uri
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