Available for print / Web / HTML5
KENKEN® is available in a variety of sizes and challenge levels. Andrews McMeel Syndication is offering puzzles that consist of either a 4x4 (easy) or 6x6 (challenging) grid of boxes divided into “cages” marked by bold outlines. As in sudoku, all numbers (1 through 4 in an easy puzzle or 1 through 6 in a challenging one) must be used without repetition in each row and column. The difference is that all numbers in each cage must combine, using the denoted math operation, to produce the target number in the top-left corner.
Nextoy LLC
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 and has proven to be one of the world's best brain exercises.
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Print Sample | Flash Sample | HTML5 Sample
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