Pixiv - online puzzles

Pixiv (Japanese: ピクシブ, Hepburn: Pikushibu) is a Japanese online community for artists. It was first launched as a beta test on September 10, 2007 by Takahiro Kamitani. Pixiv Inc. is headquartered in Sendagaya, Shibuya, Tokyo, Japan. As of September 2016, the site consists of over 20 million members, over 43 million submissions, and receives over 3.7 billion page views monthly. Pixiv aims to provide a place for artists to exhibit their illustrations and get feedback via a rating system and user comments. Works are organized in an extensive tag structure which forms the backbone of the website.