This is a new Tapa variation as far as I'm aware of. I had tried this idea before, but had trouble getting it to work. I now tried to it again and now understand how to make it work. I think the idea works very nciely now and brings some different logic to Tapa.
As the name suggest it has a similar idea as Double Back, but then in the Tapa format. The Tapa has to visit every region twice. Hope you enjoy it.
Rules for Tapa
Standard Tapa rules. Additionally, the Tapa has to visit every black bordered region exactly twice.