A couple of hours. I made a tool to do it automatically. Flip page, hold up phone, move it around to a few different angles, flip page, repeat. I should note t

A couple of hours. I made a tool to do it automatically. Flip page, hold up phone, move it around to a few different angles, flip page, repeat. I should note that’s 600k small squares so each full puzzle scan yields 81 small images.