James Stanley - Autopatzer: my automatic chess board

DIY Super Smart Chessboard Play Online or Against Raspberry Pi : 34 Steps (with Pictures) - Instructables

Making My Automatic Chessboard - Chess Forums

Phantom - Making My Own Automatic Chessboard

Playing Chess Against Arduino : 4 Steps (with Pictures) - Instructables

Automatic chess board design - Open Electronics - Open Electronics

Automated Chess

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

Figure 2 from Low cost electronic chess set for chess tournament

Wizard Chess — Brooks Willis

Chess++, smart chessboard project from a couple of years ago! : r/arduino