Now you can create private URLs for your private sketches to share it with specific people. Any person who has this URL will be able to see your sketch and its code even if you have set your sketch private.
You can create private URLs two ways.
Once you save your sketch, click (i)nfo and Edit button to go back to sketch settings. There you will find the option to create a private URL.
Private URL option is also available under sketch share options.