Updated - January 12, 2015
Exercise your brain with KenKen® and improve your brain power such as concentration skill, logical thinking, and problem-solving!
KenKen is a grid-based logic puzzle and math game that is frequently described as "sudoku on steroids. KenKen has become the world's fastest growing (and most enjoyable) puzzle, is syndicated in over 200 publications worldwide including New York Times, and has proven to be one of the world's best brain exercises. KenKen Classic II is the ONE-AND-ONLY Official KenKen app. Only KenKen guarantees hundreds of difficulty levels and just a single solution per puzzle.
KenKen Classic II includes:
- 31 FREE puzzles of any size, from very easy to extremely challenging
- Unlimited FREE 3x3 grid size puzzles
- A vast selection of puzzles, ranging from 3x3 to 9x9 grid size puzzles
- A variety of color schemes to suite your style
- 3 input modes for digits and notes
- Great game play features such as Hints, Check, Undo, Redo, Reset, Pause, and Timer
- KenKen Store to get more games
NY Times puzzle editor, Will Shortz, calls KenKen "the most addictive puzzle since Sudoku."
KenKen Classic II is a great way for puzzle fans of all ages to exercise their brains. You may heard KenKen as Mathdoku or Calcudoku, but KenKen is the original, and is the ONLY version of this logic math puzzle authorized by its creator, famous Japanese educator Tetsuya Miyamoto.
A Little KenKen History:
KenKen was developed in 2004 by acclaimed Japanese mathematics educator Tetsuya Miyamoto (no, not two guys named Ken). His goal was to improve his students’ math and logic skills... and what better tool than a puzzle? So he developed one that would be understandable, fun, and challenging for anyone at any level. Most importantly, he wanted the puzzle to encourage independent thinking, emphasizing logic, reasoning, concentration, and perseverance. His puzzles immediately met with unbelievable success and are now played the world over by children, adults and the elderly. Since its invention, KenKen has become the world's fastest growing (and most enjoyable) puzzle, is syndicated in over 200 publications worldwide, and has proven to be one of the world's best brain exercises.
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Add simple, easy-to-follow new tutorial.
Fixed bug of "show invalid solutions" button under settings.