Hackaday

A maker built a conductive chess board that delivers electric shocks via a TENS unit whenever the player makes a blunder, using a Raspberry Pi running the Stockfish chess engine to evaluate moves. Each square is isolated and relay-controlled, with MX switches tracking piece positions. The project took over a year and two full rebuilds due to travel mishaps. Despite the elaborate behavioral conditioning setup, the builder reports spending more time on hardware repairs than improving his chess game.

Taser Chess Teaches Valuable Lessons The Hard Way