Japanese Number Puzzles

Book excerpt: In Japan, where the written language is highly complex and context-dependent, number puzzles are the people's puzzle of choice. Many of the puzzles in this book are unheard of in the U.S., but are established, proven classics in Japan. This challenging collection contains more than 350 logic, sequence and mathematical puzzles, including well-known favorites (Sudoku, Kakuro), many new puzzle types (Battleships, Number Position, Nonogram), or variations on known themes (Killer Sudoku, Latin Squares). Japanese Number Puzzles is packed with all kinds of brain-bogglers — over 350 of them in fact, and you're guaranteed top-quality challenging problems on every page. From Sudoku and Kakuro to Battleships and Arithmetic Squares, each puzzle requires logical thinking and, in some cases, a certain amount of mathematical knowledge. What's more, anyone having problems solving the puzzles needn't resort to banging their head against a brick wall. Full explanations of how to solve each puzzle type is given, as are the all-important answers.