Heyawake is a binary-determination logic puzzle published by what Japanese publisher that specializes in games, and especially, logic puzzles?
Nikoli (publisher) Nikoli Co., Ltd. (Japanese: 株式会社ニコリ , Hepburn: Kabushiki-gaisha , Nikori) is a Japanese publisher that specializes in games and, especially, logic puzzles. "Nikoli" is also the nickname of a quarterly magazine (whose full name is "Puzzle Communication Nikoli") issued by the company in Tokyo. "Nikoli" was established in 1980 and became prominent worldwide with the popularity of "Sudoku".
D3 Publisher D3 Publisher Inc. (株式会社ディースリー・パブリッシャー , "Kabushiki-gaisha D3 Paburisshā" ) (also known as D3 Go! in North America) is a Japanese video game publisher founded on February 5, 1992. Current CEO and president is Yuji Ito, and It is known for its "Simple" series of low-priced video games. Their games have been released for the Game Boy Advance, Nintendo DS, Nintendo 3DS, PlayStation Portable, PlayStation Vita, PlayStation 2, PlayStation 3, GameCube, Wii, Xbox 360 and Wii U. The name stands for "Domain 3" and refers to the three publishing "domains" the company originally intended to enter - video games, music and books - although the company now exclusively publishes video games.