Stockfish/docs/stats.md

Stats

gather_statistics command allows gathering various statistics from a .bin or a .binpack file. The syntax is gather_statistics (GROUP)* input_file FILENAME. There can be many groups specified. Any statistic gatherer that belongs to at least one of the specified groups will be used.

Simplest usage: stockfish.exe gather_statistics all input_file a.binpack

Any name that doesn't designate an argument name or is not an argument will be interpreted as a group name.

Parameters

input_file - the path to the .bin or .binpack input file to read

max_count - the maximum number of positions to process. Default: no limit.

Groups

all

• A special group designating all statistics gatherers available.

position_count

• struct PositionCounter - the total number of positions in the file.