Sudoku 25x25 Volume 4: Sudoku Xtra Specials - Softcover

If you enjoy giant Sudoku puzzles then this is the book for you! Printed in large page format on high-quality paper, this book is packed with 50 enormous 25x25 Sudoku puzzles. Each puzzle is attractively presented in a range of symmetric patterns, and is guaranteed to be human-solvable - you can complete every Sudoku in the book just by scanning rows, columns and boxes, without having to make any pencil mark notes. Visit www.SudokuXtra.com for more details.

Dr Gareth Moore is the author of a wide range of brain-training and puzzle books for both children and adults, including The Mammoth Book of Fun Brain Training, The Rough Guide Book of Brain Training, Keep Your Brain Fit: 101 Ways to Tone your Mind, and The Mammoth Book of Brain Workouts. He also writes the monthly magazine Sudoku Xtra and runs the puzzle website www.puzzlemix.com.