Cross Number Puzzles

A book full of cross number puzzles. Cross number puzzles are challenging and fun because unlike crossword puzzles, most clues are useful only in conjunction with others. A Sudoku is a special case of a cross number puzzle. Sudokus can get boring because the clues and relationships between the various numbers are always the same. None of the puzzles in this book are Sudokus, which makes every puzzle a unique, challenging brain teaser.