Ghost Chess: using electromagnets to move board pieces : r/raspberry_pi

Making My Automatic Chessboard - Chess Forums

Wizard Chess : 5 Steps (with Pictures) - Instructables

Phantom - Making My Own Automatic Chessboard

DIY Completely Automated Chess Player

Automatic chess board design - Open Electronics - Open Electronics

Electronic chess-board : r/diyelectronics

Play a game of Ghost Chess with this interactive, Raspberry Pi-powered board - Raspberry Pi Pod and micro:bit base

Figure 6 from Digital chess board based on array of Hall-Effect sensors

Square On: The Magic Chess Robot

Make your own chess computer using an Arduino