I'll do some research this weekend. But on the surface there are quite a few different Annaku kata from Okinawan origin. I teach a variation of one taught by Shimabuku Ezio.

There are some similarites and some differences between the different versions.

Is the one you're interested of the Kyan lineage from Matbubayshi Ryu or from the Seibukan or elsewhere?

The version I teach descended from Shimabuku E to Nash (Tx) to Carl Long (Pa). It includes both twisting and vertical striking (though in my Isshinryu program as I use it as a prparatory kata for Seisan kata, I only have my students use the vertical striking paradigm.
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