Appendix D of the Laws sets out play with blind and visually disabled players, including adapted boards and permitted assistance; Arbiters may make reasonable accommodation for players with disabilities under the Laws
Why people argue about this
People often assume that the official FIDE rules for chess only allow for blind players to play with audio cues as assistance, but in reality, the laws do cover a broader range of accommodations including adapted boards and reasonable physical or mental assistance under certain conditions.
