There is no way to play ranked correspondence 960 games. Neither you challege or you pick one, once you are in the game it appears unranked, dont know why.Kind regards.
@MathsProfessor Correspondence Variants Games can not be rated because it is extremely easy to cheat and not get detected, and play against low rated players to boost your rating.They were removed a couple of months ago.
Not just for 960, all other variants
Understood, but in that case I would suggest not to have the option to offer ranked. Its confusing. Thank you for your answers.