To add the calendar to a mobile device a Google web account is required which is subscribed to your mobile device.
Add calendars from the following account 'firstname.lastname@example.org' to your own Google account, the calendars will appear on your devices calendar.
Google to find instructions for you particular device.
The Cheddleton and Leek Chess Club, Westwood College, New Hall, Westwood
Park Avenue, Leek, Staffordshire.