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Betza notation (extended). The powerful XBetza extension to Betza's funny notation.[All Comments] [Add Comment or Rating]
Daniel Zacharias wrote on Thu, Jul 20, 2023 08:43 PM UTC in reply to Bob Greenwade from 02:02 PM:

Pretty much exactly what I've been getting at. (If Q=BR, then [N-fQ] = [N-fB][N-fR].)

Yes, I didn't notice you'd said the same thing before I wrote that. The same would go for things like [D-fQ] or [F-fQ]. I've actually tried using [N?fB][N?fR] in games before, but I don't know if anyone else has.