The Focus board button will show when you scroll over the top right corner of the board.
Where has the large board gone?

Thanks and I am aware of that. It is focus mode is still working for puzzles but not on games. The right hand side of the screen now has the menu panel the same size as the chess board where before today, in focus mode, it dissapeared completely.

Thanks and I am aware of that. It is focus mode is still working for puzzles but not on games. The right hand side of the screen now has the menu panel the same size as the chess board where before today, in focus mode, it dissapeared completely.
Play requires a minimum window size for the Theater and Focus Mode options to show on hover.
You can enable/disable Focus Mode by hitting Z on your keyboard. Changing your browser zoom settings can get it to show as well.

Thanks, I am aware of your points. Maybe I am not putting over my problem correctly. Before today, in focus mode, I did not have that large panel to the right of the board. Today it appears to be a permanent fixture. How do I get rid of it?

Thanks, I am aware of your points. Maybe I am not putting over my problem correctly. Before today, in focus mode, I did not have that large panel to the right of the board. Today it appears to be a permanent fixture. How do I get rid of it?
You can change your Live settings to Always Use Focus Mode
Change your browser Zoom so the icons appear when hovering over the right side of the board.
Or hit Z in your keyboard to enable/disable Focus Mode

Martin thank you for trying to help.
All of the above have been done including the setting "always in focus" mode.

Thanks, I am aware of your points. Maybe I am not putting over my problem correctly. Before today, in focus mode, I did not have that large panel to the right of the board. Today it appears to be a permanent fixture. How do I get rid of it?
This is how it looks when I tried it.
You can't get rid of the black space to the right of the board.
The board doesn't show up on my updated Firefox browser, and the suggested fixes on this site do not work. Please help!

Thanks "Justbefair".
I have got to that stage but ideally I would like the players on the right hand side. I guess you can't have everything.
Thank you to everyone that commented.
How do I get the large chess board back under the new format when playing games?