Saving pv to file

[cdani]

Hi. I plan to make a version of Stockfish that saves the principal variation found in a text file and then loads it again to save analysis time.
It will not save the pv itself, but any move in the pv that for example is depth >= 10.
The file will be like this, one position per line

fen;move;depth

There will be an uci parameter that will be the pv file. When set, it will load it and save the readed positions to the hash. And it will continue saving to the file any new moves that become pv and where analyzed at depth >= 10.

Do you think it will work as intended? Of course, this version will treat all the analysis as a single session, meaning that the hash counter will not change even if the users goes back and forward.

Thanks

[cdani]

This version is intended for analysis, not for playing. Anyway sure can be used for playing also.

[hgm]

It seems better to save all deep hash entries in a file (and even the somewhat less deep when they are PV). That would imply the PV. Saving only the PV might not save all that much time.