The accessible path (typed notation + screen reader narration) isn't changing — that's the actual point of this build, and it already works the way established tools like Lichess's Blind Mode do. What I'm adding is a second, purely additive way in: click-to-select on the visual board for sighted players, plus a visible legend so the notation isn't a hidden secret. Neither of those touches or slows down the screen-reader path — they're just a faster on-ramp for people who don't need it.