KenKen and KenDoku are trademarked names for a style of arithmetic and logic puzzle invented in 2004 by Japanese math teacher Tetsuya Miyamoto, who intended the puzzles to be an instruction-free method of training the brain. The name derives from the Japanese word for cleverness (賢, ken, kashiko(i)). The names Calcudoku and Mathdoku are sometimes used by those who do not have the rights to use the KenKen or KenDoku trademarks.

Immerse yourself in a world of logic and strategy as you embark on an intriguing journey to solve grids of varying sizes, designed to challenge your wits and keep you engaged for hours on end. With intuitive gameplay mechanics and a user-friendly interface, this game offers an addictively rewarding experience for both beginners and seasoned puzzle enthusiasts. Explore countless levels of brain-teasing fun, sharpen your problem-solving skills, and revel in the satisfaction of completing each unique puzzle. Are you ready to unravel the mysteries and become a master of this mesmerizing puzzle game? Let the adventure begin!