>playing on paper Printing is no longer necessary! GMPuzzles have been providing Penpa+ (a Javascript puzzle tool) links for all new puzzles for a while now a

>playing on paper Printing is no longer necessary! GMPuzzles have been providing Penpa+ (a Javascript puzzle tool) links for all new puzzles for a while now and are in the process of backporting all their backlog puzzles for digital solving, too. It's really awesome :)