alt Hacker NewsCute and I'm glad someone is doing that, but it's too small and out of proportion for tournaments etc. You want squares of about 2.25 inches and king height of 3.75 inches, about. If you're going to all the trouble of magnetic sensors and whatnot, you might as well make the board and pieces meet the relevant standards.
These days, image recognition is good enough that it's probably feasible to just video the chess game on a non-sensory board, and let software figure out what moves were played. In cases of doubt or dispute (blitz scrambles), humans can examine the video.
If anyone cares, the tournament sensory sets that most organizers use are made by DGT and cost around $600 iirc. The magnetic sensor system is very clever and was patented in the 1990s or so, but the patents would be expired by now.
Replies
Trivial to scale, since it's open source.
The C++ code is a bit naive, but easily extendable to use a proper engine. https://github.com/Concept-Bytes/Open-Chess/blob/main/Chess....
The DGT Pegasus [1], which is designed for online play as the device presented her, costs 189 Euro. I know one of the founders of DGT and once applied there for a job for the app development, but did not feel that there was a match at the moment also because I am not really into chess.
[1] https://dgtshop.com/products/chess-boards/dgt-pegasus