Possible Bug

[qrdecomposition]

Should this:

out << " scoreMean " << lead

be

out << " scoreMean " << scoreMean

https://github.com/lightvector/KataGo/blob/master/cpp/command/gtp.cpp#L796

[lightvector]

This is not a bug, see documentation for scoreMean at https://github.com/lightvector/KataGo/blob/master/docs/GTP_Extensions.md, this choice was made because there were many old tools coded to use scoreMean when they should have used lead instead, so rather than get all the user end tools to change we just updated the field directly, and made scoreMean instead available to user applications as scoreSelfplay.

I'll add an inline code comment later to make this more clear.