Open Sudoku Book with pencil

Medium Difficulty Sudoku Books


Our Medium Difficulty Sudoku Books offer the perfect balance between relaxation and challenge. Designed for solvers who have moved beyond the basics, these puzzles require thoughtful logic without becoming overwhelming. With clear layouts and carefully graded difficulty, these books are ideal for building confidence, improving problem-solving skills, and enjoying a satisfying daily Sudoku routine.

Thoughtfully Crafted Sudoku Books

Every book is designed with clarity, balance, and progression in mind. Clean layouts, carefully tested puzzles, and included solutions ensure a calm, rewarding experience from the first page to the last.

Designed for Adults • Printed on Premium Paper

Sudoku Articles
Sudoku4Adults Version 2.7 – Dark Mode, Auto Pencil & Smart Puzzle Insights
Sudoku4Adults Launches Version 2.7

Sudoku4Adults Version 2.7 introduces powerful new tools including Dark Mode, Auto Pencil, colour cell shading, puzzle SE ratings, and hardest technique insights — designed to help players solve smarter and play with confidence.

How Sudoku for Adults Strengthens Logical Thinking
How Sudoku for Adults Strengthens Logical Thinking

Sudoku for adults is more than a pastime. Recent studies link regular puzzle practice to improved working memory, greater cognitive flexibility, reduced stress and slower cognitive decline. This article explains how Sudoku engages the brain, summarises key findings on neuroplasticity and dementia risk, offers practical strategies for beginners and advanced