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(Paperback)
Once you've mastered the easy puzzles, it's time to take it up a notch!
Features:
-200 medium-level puzzles using addition, sumtraction, multiplication, and division
-Introduction and instructions by Will Shortz
-Puzzles range from 4-by-4 to 6-by-6
More Reviews and Recommendations
TETSUYA MIYAMOTO, the creator of KenKen, is a math teacher whose use of KenKen in his classroom has proved so successful that it has lead to a worldwide demand for his puzzle to be published in book form.
WILL SHORTZ has been crossword editor of The New York Times since 1993. He is also the puzzlemaster on NPR’s Weekend Edition Sunday.