Proposal to add standardized variation sequences for chess notation

Richard Wordingham richard.wordingham at
Sun Apr 2 12:52:51 CDT 2017

On Sun, 2 Apr 2017 11:57:49 +0200
Michael Everson <everson at> wrote:

> THat’s why in the proposal says things like "set in Ludus in
> 24 points with 26-point leading” where relevant. 

You forgot the most important setting though - that the higher-order
protocols allow symbols to be displayed left-to-right.  If the
direction should happen to be right-to-left, not only is the game
mirrored, but the board edges don't work properly, as the glyphs are
not mirrored.  One needs each bidi-paragraph to be forced to the
correct order, e.g. by use of LRM before and after, or, if the board is
recorded right-to-left, RLM or ALM before and after.


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