Average number of moves per game What are the average number of moves per game with regards to what opening has been played?
I wrote a simple PHP script which parses ELO codes and the corresponding number of moves from chess games in PGN files. This script will output the ELO code and number of moves into a CSV file. The averages can then easily be evaluated in Excel for example.

I ran my script on a PGN file with about 6000 games which I downloaded from The Week in Chess. You can view the result here:



Full size

If you want to evaluate millions of games, to get better averages, I suggest you use Pig script or some other scripting languages which can easily handle big chunks of data.