To welcome the new year, here’s a Tapa “knapp-daneben”, i.e., all clues are off by one. The type features on Tapa Variations Contest XVII which takes place on the week-end. I’m really looking forward to that! For a more thorough preparation, check the practice puzzles on Bram’s blog.
Rules Increase or decrease each digit by one, then solve as a regular Tapa. Digits may become zero, even multiple, but not negative.