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Betza notation (extended). The powerful XBetza extension to Betza's funny notation.[All Comments] [Add Comment or Rating]
Bob Greenwade wrote on Fri, Feb 23, 2024 05:32 PM UTC:

From the article:

The meaning of o could be extended to only imply wrapping when used in a final leg, but allow pieces to venture off-board without wrapping in non-final legs. This would allow moves to 'probe' for the presence of a board edge by attempting to step off-board and back. E.g. oabyaK for a (partial) Edge-Hog move.

Just a more-or-less random thought here: What if this "probing" could be done with a simple ob? That combination wouldn't make sense normally, unless the o was also in the previous leg, so if the first o in the string is followed by b then the does what you describe above. (And (ob)2 could check to see if the piece is within two spaces of the edge.)

The Edgehog could then be something like obyaKayobQ. (I say "something like" because, among other reasons, it might still need to be able to check whether it's in the middle of the board.)