Board Thread:Naruto Discussions/@comment-4688597-20140416230405/@comment-945885-20140422231521

FF-Suzaku wrote: According to this page, you can only choose to preview one page of the next chapter, and some pages are declared NG (no good / off limits) by the editors. So what most likely happened is one or more people managed to get all of the preview pages by doing the preview multiple times. So that's why it's almost the complete chapter.

Actually, hah, you can upload the last page of the bootleg scanlation to that site and it works just like taking a photo.

http://www.shonenjump.com/xmedia/jumpbookstore/acr_hayayomi/wj21/oonntrt/src/page01.jpg

Then you just change the digits of the url to get the other pages.