[brbsix]

It would be easy enough to have a remote friend watching a mirror of your screen. Use an inductive loop earpiece hidden inside your ear hooked up to a phone and they could read out your next moves. I suppose you could write a program using CV to decode the opponents moves on screen and translate them into chess software in lieu of a friend performing the same task, but that's a bit overkill.

[Hyolobrika]

Would you need to use computer vision or could you just decode the state of the DOM if on a chess website or monitor the telnet connection if on FICS?