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Betza Notation. A primer on the leading shorthand for describing variant piece moves.[All Comments] [Add Comment or Rating]
H. G. Muller wrote on Thu, Feb 27, 2020 08:44 AM UTC:

Indeed, its absence is unintended. When we split the mc leg into mNmafsWcafsW it does work as intended, so the presence of both m and c on the same leg seems to confuse it. I will have a look at the script, to see if it is just a matter of more carefully recognizing the condition that has to add the pawn on hover, or whether the Betza parser should already split up such move in the internal representation.

[Edit] OK, I fixed it. It was not only that the hover did not work, but the W squares were not indicated at all as (locust) capture targets in the primary move diagram. Turned out the code for indicating those was in a branch that only treated cases where there were no m rights. Now I also test for locust captures on non-final legs with m rights, and that automatically makes the hover work as well.