107.210.159.110: Inside of what? (2020-04-22 16:44) [#11522]

Underneath or bottom contact would be better English, eh?

Inside contact would be appropriate for a side contact play. Such as in the sequence, 5-4, 3-4, 3-3, where both stones are on the 3d line. The 5-3 contact would be an outside contact.