Penguin Sudoku 2006: A Year's Supply of Sudokus and Some Nonograms and Cross Sums, the Fiendish New Japanese Puzzles

Containing a yearÂ's supply of Sudokus and some fantastic new Japanese puzzles, Penguin Sudoku 2006 presents 365 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.