Sudoku: The puzzle of the 21st century!

Sudoku has become an extremely popular pastime and is now as popular with puzzlers as crossword puzzles and cryptograms. Sudoku puzzles can be found everywhere these days: in waiting rooms, on the beach, and on airplanes. One can rightly say that sudoku is the puzzle of the 21st century. Crossword puzzles are about vocabulary, sudoku is about a wealth of solving techniques.

Purpose of the book “Solve every sudoku”

In this book, several techniques are explained step by step, enabling the reader eventually to solve all sudoku puzzles. A multitude of detailed examples and practice material ensures that the reader is taken by the hand and gains enough experience to be able to confidently approach the most difficult Sudoku’s in newspapers, in puzzle books and on the internet after reading this book.

The best book for solving sudokus

There are few books on solving sudokus, and most books are either too difficult and cover techniques that only computers can do well, or they limit themselves to the simplest techniques and then end by saying that for difficult sudokus one has to write down all possibilities and then figure it out. The situation is the same in other countries as well, and with the information on the Internet one often does not get any further either. The book “Solve every sudoku” is a big exception to this: it explains the solution techniques in detail, starting at the beginning, and contains a lot of practice material as well as worked examples so that the reader can try out the learned techniques. Many readers have expressed their appreciation for the book and have raised their level considerably so that they can now even solve very difficult sudokus.

The uniqueness of this book

Unique is the method of number pairs, which forms the basis for all steps of the solution process. Other books invariably recommend noting all possibilities in each empty box, which leads to messing around and also unnecessarily takes up a lot of time. In “Solve every sudoku” this laborious process is completely avoided. Not only is it much easier and more natural, it also turns out to be much more effective! Also unique is the way in which the most difficult sudokus are handled at the end of the book. The alternative presented here for extremely difficult puzzles is completely new!

The final result for the reader

The reader will notice that he increases his level playfully as he goes through the different chapters. Each step in the process allows the reader to solve some more difficult sudokus. After 7 steps, the reader can solve puzzles that are characterized as very difficult. Steps 8 and 9 are intended for the much more difficult puzzles, but these are also very clearly described with many examples and exercises. The reader is advised to go through the methods step by step, and after step 7 first buy some puzzle books with difficult puzzles to test his learned skills. Finally, also for sudoku’s: “Practice makes perfect”!

New book “Solving Difficult Sudoku’s”

Because the proverb ‘Practice makes perfect’ also applies to solving very difficult sudokus, the author of “Solve every sudoku” has chosen to compile a book full of difficult sudokus, in which the solution of each puzzle is discussed in detail, so that the reader can see how this process proceeds. Even the most difficult sudoku in the world is covered in the book! To solve the puzzles, one needs the alternative method of solving which is discussed in the last chapters of “Solve every sudoku”. The book is currently only available in Dutch (see the Dutch version of this website), but the puzzles in the book can, of course, be taken on. An English version will be announced here.

Frequently asked question: is solving sudokus still fun after reading this book?

Yes, it is! The book should actually be compared to books such as “1 million puzzle words”. For crossword puzzles, the difficulty of puzzles you can solve depends on the (puzzle) vocabulary you have. For sudokus it depends on the techniques you have “in store”. If you master these, you can solve difficult and extremely tricky puzzles. But it’s still puzzling, sometimes you have to look for new numbers! The fun isn’t less when you know more techniques, the feeling of “yes, I’ve solved another extremely difficult one” is much more intense!

Sudoku is good for your brain

Recent research shows that puzzling is good for your brain. The more people over 50 engage in games such as sudoku and crossword puzzles, the better their brains function. People who puzzle have a brain function that corresponds to 10 years younger than their age, according to the research tests. On short term memory tests, puzzlers had a brain function equal to eight years younger. This can be read here. For the experts here is the article in which the research is described.

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