Sudoku

Welcome to the world of Sudoku! This handy sized book is ideal for tea and coffee breaks, easy to slip into a bag if you're travelling and has over 70 puzzles that will keep you going for weeks. These number puzzles are so absorbing, you'll forget to go back to work - so you'd better get your boss hooked on them too! To solve the puzzles all you need is one simple rule: just fill in the boxes the grid so that each of the nine rows, each of the nine columns and finally each of the 3X3 sections contain all the numbers from 1 to 9 - that's all there is to it!