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The Puzzle Doctor Presents Hexadoku – 16×16 Sudoku – Hard Level Volume 4

$12.99 plus tax

  • 100 puzzles: 100 Hard Hexadoku Puzzles
  • Solutions for all puzzles
  • Basic strategies and techniques
  • Large print: Enjoy one 4.7″x 4.7″ Hexadoku puzzle per page
  • Compact size: 6×9 format

What’s inside:

  • 100 puzzles: 100 Hard Level Hexadoku Puzzles
  • Solutions for all puzzles
  • Basic strategies and techniques

Solver-friendly design!

  • Large print: Enjoy one 4.7″x 4.7″ Hexadoku puzzle per page
  • Compact size: 6×9 format

 

Stop Looking for Easy Answers

Most of the time, we’re encouraged to find the fastest path to a solution. Search engines answer questions in seconds. Apps automate tasks that once required effort. Even many puzzles are designed to provide quick progress and frequent wins. Hard Hexadoku puzzles move in the opposite direction. It asks you to slow down, pay attention, and work through a problem that isn’t interested in being solved immediately.

That’s part of what makes difficult logic puzzles so different from other forms of entertainment. There are no shortcuts hidden in the grid and no tricks waiting to reveal the answer. Every placement must be supported by information already available on the board. As the puzzle develops, you begin connecting clues that initially seemed unrelated, gradually reducing possibilities until the next move becomes clear. The process is methodical, but it is never repetitive because each puzzle unfolds in its own way.

Hard Hexadoku also benefits from the scale of the 16×16 grid. With more symbols and more locations to evaluate, the puzzle naturally creates a larger web of relationships. A deduction made in one corner of the board may influence decisions far away from where it started. This interconnected structure encourages careful observation and long-range thinking, making each completed grid feel like the result of hundreds of small decisions working together.

This hard Hexadoku puzzle book is intended for solvers who enjoy spending time with a puzzle rather than racing through it. If you appreciate logic challenges that require patience, concentration, and a willingness to follow clues wherever they lead, these larger 16×16 grids provide plenty to explore from the first symbol to the final placement.

Give this Hexadoku puzzle book a try!

Happy Puzzling!

Book Size

6×9 format

Number of Puzzles

200 – 100 9×9 Calcudoku Puzzles; 100 Sudoku Puzzles

Large Print

4"x4" Puzzle Size for easy viewing