The "Daily Telegraph" Sudoku 3: Into a New Dimension by Michael Mepham, ISBN 9780330442954

Publisher Description:
This third collection from "The Telegraph" has everything you have come to expect from Michael Mepham's puzzles and more. It contains 132 standard grids, graded according to difficulty, plus the ultimate test for hardened solvers: a sudoku in three dimensions. The step-by-step introduction includes helpful hints on how to tackle this unique challenge, as well as tips for the more familiar puzzles. "There is a monster on the loose, and it is out to eat your brain. Pitiless in its advance and cunning, Sudoku, a seemingly simple numbers game, has become the biggest puzzle craze to hit Britain since the Rubik's cube" - "Daily Telegraph".