Overcoming Technical Hurdles to Develop a Connected, Self-Moving Wooden Chessboard Compatible with Existing Platforms

The journey to create a self-moving wooden chessboard began with an ambitious goal: to merge the tactile pleasure of wood with the precision of modern technology. The result is a hybrid chess experience that bridges physical and digital realms, making the game more accessible, immersive, and engaging for players of all levels. At the heart of this innovation is a Raspberry Pi 5, which orchestrates the CoreXY system – a mechanism that controls electromagnets beneath the board.

These electromagnets lift and move chess pieces, which are equipped with neodymium magnets for precise positioning.

Early development faced several technical challenges. Initially, the system experienced magnetic interference, where the electromagnet’s field disrupted the hall sensors that detect piece positions. This caused inaccurate readings and misaligned pieces. To overcome this, engineers shielded the sensors with mu-metal and recalibrated the electromagnet’s strength to reduce interference.

Another hurdle was piece stability during movement. The CoreXY system’s abrupt starts and stops caused pieces to wobble or topple. The solution was a damped motion profile, which smoothed out the acceleration and deceleration of the pieces, preventing damage and ensuring consistent movement across the board.

Despite these successes, some features like promotions are still being refined for seamless execution. The current setup runs via command line, but plans are in place for a user-friendly LCD menu embedded in the board’s side wall, which will unify all functionalities—from game setup to move history—into a cohesive experience. This project not only enhances engagement but also opens new possibilities for both casual and competitive players, demonstrating what can be achieved when craftsmanship meets cutting-edge technology.