ooof, sudoku is one of the worst things to develop tetris effect for, i need to mix it up with other nikoli puzzles
i just want to email ceo -at- nikoli.com and beg them to release some of their puzzles as ebooks, they wouldn't even have to localize them for english speakers for me to throw money at them for it
oh whoops nvm, they do have a jp-only site where they sell pdfs of previous publications :)

