x is already taken sadly (for move‐relayers that ‘eXcite’ other pieces). Afaict the only (ASCII — I'd wager few would support using þ, ß, ⱶ, ⁊c.) letters that aren't yet used in XBetza are t and w — of which the former had a meaning for Betza himself (though iirc the article he introduces it in also features incompatible meanings for a number of other letters). w as a prefix (to ‘widen’ the available options?) sounds plausible I think
xis already taken sadly (for move‐relayers that ‘eXcite’ other pieces). Afaict the only (ASCII — I'd wager few would support usingþ,ß,ⱶ, ⁊c.) letters that aren't yet used in XBetza aretandw— of which the former had a meaning for Betza himself (though iirc the article he introduces it in also features incompatible meanings for a number of other letters).was a prefix (to ‘widen’ the available options?) sounds plausible I think