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Subject: a question about list of opening lines ordered by popularity

Author: Uri Blass

Date: 10:39:05 02/10/03


I am interested if someone cared to do a program to find
a list of lines that lead to chess positions ordered by the popularity of the
position

The idea is to take a big pgn of games and to order positions based on the
frequency of the position in games(the initial position is position number 1
with frequency of 100% because it happens in 100% of the games)

The list can be something like

no moves 100%
1.e4 51%
1.d4 49%
1.d4 Nf6 32%
1.d4 Nf6 2.c4 27%(includes also 1.c4 Nf6 2.d4 but only the popular way to get
the position is written in the list)
1.e4 c5 23%
1.e4 c5 Nf3 20%
1.e4 e5 14%
1.d4 d5 13%
1.e4 e5 2.Nf3 12%
1.c4 11%
1.Nf3 10%

It may be interesting to find what is the first position when program can
blunder in the list and the first position when top program can blunder even
after many hours of analysis.

Note that it is possible also to include lines when white wasted a tempo inside
lines that are written so game that began 1.c3 e5 2.c4 can be included in the
1.e4 c5 line.

Uri



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