The New York Times Will Shortz Presents Sunday Kenken: 300 Challenging Logic Puzzles That Make You Smarter

Bok av Will Shortz Tetsuya Miyamoto New York Times
KenKen--called the most addictive puzzle since sudoku--is also the first puzzle in "New York Times" history to run alongside the traditional crossword puzzle. This collection offers 300 easy-to-difficult games.