Chinese brain-computer interface company NeuroXess said two quadriplegic patients in Shanghai and Jiangxi completed a remote game of Chinese chess using its self-developed brain-computer interface system.

The participants made no physical movements, controlling virtual chess pieces through neural signals via a digital chessboard and an exoskeleton glove, the company said.

NeuroXess said the test used its "fully implanted, fully wireless, fully functional" brain-computer interface system, with end-to-end latency kept below 50 milliseconds.

The company said the trial demonstrated the system’s ability to decode brain signals in real time and provide precise motor assistance in dynamic scenarios.