While less ideal for puzzles due to the e-ink screen’s slow refresh, you can subscribe to La Settimana Enigmistica via Amazon for delivery to your Kindle Fire or Kindle app. Again, not a standard PDF, but a Kindle format file.
Luca opened the PDF on his tablet. The interface was sleek, but the page layout was timeless. There was the familiar green-and-black masthead and the portrait of a stoic man in the corner of page one. He zoomed in on 1-Orizzontale “Lo è il mare calmo” (5 lettere).