Guardian

Test your wits against 210 difficult previously unpublished killer sudoku puzzles in the first book in the new Guardian puzzle book series.

The Guardian's killer sudoku puzzles are enjoyed by hundreds of thousands of people every day. While only a minimal level of mathematical knowledge is needed, all of your logical reasoning will be required to solve these brand-new puzzles. The puzzles have been designed to increase in difficulty as the book progresses, meaning this book can be enjoyed by novice and master alike.

This book contains more than 200 crosswords, perfect for a quick – but challenging – test of your deductive skills.

The Guardian's many crosswords are enjoyed by hundreds of thousands of people every day. With a wide variety of clues from a vast range of subjects, these crosswords will provide a stern examination of your lexical knowledge, but are concise enough to be solved in bite-sized chunks. This is the first in a brand-new series of Guardian puzzle books.

Test yourself against the world's favourite puzzle, with 210 previously unpublished sudoku to savour.

The Guardian's sudoku puzzles are enjoyed by hundreds of thousands of people every day. These brand-new puzzles will provide hours of entertainment for anyone who enjoys unwinding with some mental gymnastics. The puzzles have been designed to increase in difficulty as the book progresses, meaning this book can be enjoyed by both novice and master alike. This is the first book in a new Guardian puzzle series.