People everywhere are testing their wits with sudoku, the nation's latest brain-teasing sensation. And what better way to spend the summer than with "Summertime Pocket Sudoku"? From "New York Times" crossword editor Will Shortz comes this latest collection of 150 sudoku puzzles, ranging in difficulty from easy to challenging, making it the perfect gift for anyone who hasn't yet discovered the global phenomenon of sudoku.

Best of all, anyone can do sudoku There's just one simple rule: Fill in the empty boxes in the nine-by-nine grid, so that every row, column, and three-by-three square contains the numbers 1 through 9, without repeating. It's a cinch So whether you're on the beach, at the park, or relaxing in your backyard hammock, spend your summer with sudoku. Once you try one sudoku puzzle, you'll be hooked.

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