Proposal to add standardized variation sequences for chess notation

Philippe Verdy verdy_p at
Mon Apr 3 06:11:50 CDT 2017

2017-04-03 12:31 GMT+02:00 Martin J. Dürst <duerst at>:

> Also it would be weird to try e.g. to "semantically" distinguish the two
> rooks, even if they are two different actual chess pieces on an actual
> board.

However it is perfectly possible to have pseudo-variants using pieces and
an annotation on them such as numbers/letters/symbols added on top of them:
with combining marks? As well empty checkboard cells may contain some
marks, not just pieces.
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