KenKen – the new sensation

Dr. SN Gananath

Work consists of whatever a body is obliged to do. Play consists of whatever a body is not obliged to do. – Mark Twain

A new kind of sensation is sweeping the world of popular puzzles. While most of you will be familiar with SuDoku, another type of number placing puzzle – also from Japan – called Kenken is rapidly gaining popularity.

In this puzzle you need to place numbers in a square grid and perform some arithmetic operations. Like SuDoku, the KenKen grid has squares that must be filled with numbers with no repetition. However, unlike SuDoku the grid has cages with certain arithmetic operations and the chosen numbers in the grid need to ‘obey’ some additional rules.

The author is Director at Suvidya, Mysore. He can be reached at [email protected].

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