What is the sidebar in game analysis? - Chess Forums

I am watching game analysis and I wonder what is this sidebar that displays black and white color and some numbers? And why did it change so rapidly when black made this move?

Is the Daily games view going away? - Chess Forums

Questions: re: Library's Saved Analysis collection vs. current Saved Analysis collection - Chess Forums

A Guide to the New Analysis Board and Editor - Chess Forums

How to have a custom sidebar thing on your blogs - Chess Forums

A Guide to the New Analysis Board and Editor - Chess Forums

Best chess analysis software - Chess Forums

What does this bar mean? - Chess Forums

Questions: re: Library's Saved Analysis collection vs. current Saved Analysis collection - Chess Forums

What is the sidebar in game analysis? - Chess Forums

Hans strikes back at r/chess : r/chess

A Guide to the New Analysis Board and Editor - Chess Forums

What is wrong with the formatting on ? - Chess Forums

Disfonctionning responsive design in analysis - Chess Forums

Varients with bots - Chess Forums

How to make the best move arrow appear on the analysis page - Chess Forums