by Gareth Moore (Author)
Due to continuing demand Sudoku Xtra Specials returns with a seventh volume of 50 enormous 25x25 Sudoku puzzles. Printed in large page format on top-quality paper, each puzzle is attractively presented in a range of symmetric patterns. Every sudoku in the book is guaranteed to be human-solvable - you can complete all of the puzzles just by scanning rows, columns and boxes, without having to make any pencil mark notes. Just place A to Y into every row, column and 5x5 box. Visit www.SudokuXtra.com for more details.
Author Biography
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, Keep Your Brain Fit: 101 Ways to Tone your Mind and The Rough Guide Book of Brain Training. He also writes the monthly magazine Sudoku Xtra (www.sudokuxtra.com) and runs the puzzle website www.puzzlemix.com. He gained his Ph.D from Cambridge University in the field of Artificial Intelligence, and has contributed to various advanced projects for leading technology companies.