Puzzles to make you smarter

KENKEN® is a new mind game invented by a Japanese man Tetsuya Miyamoto. In Japanese “Ken” means wisdom, so “KENKEN” is wisdom squared. For more info goto www.kenken.com

The rules are simple:

 For a 3x3 puzzle, each row and each column must have the numbers 1-3.

 For a 4x4 puzzle, each row and each column must have the numbers 1-4.

 Do not repeat a number in any row or column.

 The numbers in each heavily outlined set of squares, called cages, must combine (in any order) to produce the target number in the top corner of the cage using the mathematical operation indicated.

 Cages with just one box should be filled in with the target number in the top corner.

Puzzles will get harder as the months go by. Solution on page 42.