Jim wrote on Sep 27, 2023, 16:00:
I find it hard to believe that a vibrating buttplug can be used to provide useful information to a chess grandmaster
I can't beat Blue's comment, but I've read stories about how even a simple single "buzz" indicating an opportunity is available is useful to someone at that level. More complicated codes could convey even more detail. Moving a certain piece to a location is a few chars: Bc4, Nf3, etc.
If Russia stops fighting, the war ends. If Ukraine stops fighting, Ukraine ends. Slava Ukraini!