Couldn't you just have them play in a faraday cage? Surely there's enough money in the world championships of chess to arrange that. A metal detector and a room

Couldn't you just have them play in a faraday cage? Surely there's enough money in the world championships of chess to arrange that. A metal detector and a room that can't be penetrated by wireless anal beads (pun intended) can't be that hard to arrange with a little budget right?