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".
Super Mahjong Taikai Super Mahjong Taikai (スーパー麻雀大会 / Super Mahjong Tournament) is a Japanese mahjong video game that was released in Japan by Koei, now Koei Tecmo, in September 1992.