Penguin Pocket SudokuSudoku is a real cultural phenomenona French fad in the 1890s, a Japanese craze in the 1980s, and now a peculiarly British obsession. Here is Penguin's volume of Sudoku puzzlesthe logic game that has taken the world by storm. Pocket Penguin Sudoku contains 201 fiendish brainteasers, ranging from easy to mind bogglingly difficult. It provides a daily fix for the hardened Sudoku fan and sets an addictive challenge for novices. It's more than a game.