The Number Addict's Book of Hard to Extreme Sudoku . 200+ Challenging Sudoku Puzzles Puzzle Therapist

Книга "The Number Addict's Book of Hard to Extreme Sudoku | 200+ Challenging Sudoku Puzzles".Stimulate your mind with this book of hard to extreme Sudoku puzzles. If you've only progressed to this level, don't get frustrated if it takes you a minimum of an hour to complete a puzzle. You are just getting started. Your mind will soon adapt to the level of difficulty if you continue to work on more puzzles everyday. How many puzzles can you complete today? Это и многое другое вы найдете в книге The Number Addict's Book of Hard to Extreme Sudoku . 200+ Challenging Sudoku Puzzles (Puzzle Therapist)