A very interesting project by Jonathan Good:
https://github.com/bungogood/gambit?tab=readme-ov-file

Gambit Chess is a robotic chess board that employs magnetism for piece movement and movement detection.
It utilizes an electromagnet on an H-Bot mechanism for precise piece manipulation and a reed switch matrix to accurately track piece positions. The core of Gambit is powered by an Arduino Nano ESP32 and is primarily constructed using 3D printing.

Please check out the Hackaday project page for detailed project logs, updates, and demos:
https://hackaday.io/project/192559-gambit

Gruß
Hans-Jürgen