Probably not calling out to one but it would not surprise me at all if they added more chess PGNs into their training data. Chess is a bit special in AI in that

Probably not calling out to one but it would not surprise me at all if they added more chess PGNs into their training data. Chess is a bit special in AI in that it’s still seen as a mark of pure intelligence in some respect. If you tested it on an equally strategic but less popular game I highly doubt you would see the same performance.