Fast, compact, and challenge-led, this edition is built for serious solvers who want hard Sudoku in a smaller format. It includes 100 hard Sudoku puzzles designed for deeper focus and stronger logical play.

This book is a strong fit for solvers who want a compact edition that still feels rewarding and substantial, whether for regular use or short, intense puzzle sessions.

• 100 hard Sudoku puzzles

• Compact travel-sized layout

• Full solutions included

• Portable format for quick access

• Designed for experienced solvers