Knock out Sudoku on your own! Yes, you can do it! You just have to think of the right strategy to eliminate all possibilities and settle on only the right ...

When you get started on crossword puzzles, you're done for! You wouldn't want to stop working on clues and getting puzzles solved. You will become addicted ...

What is our symbolic intuition of reality, and how is it possible? In Toward a New Conception of Mathematics, Davide Lo Vetere leads us on an extraordinary ...

This treatise is written on an elementary level; in more difficult cases the final formulas are provided without proof. Nevertheless, it was impossible ...

If you are new at crosswords, then it's best you start with the easy ones. This book contains 50 easy drills that you can share with your seniors. Sharing ...

Sudoku is a fun activity that exercises your brain while giving you a sense of accomplishment. Anyone can do it, as long as you are patient enough to train ...

Numbers form a universal language so you can work with them, regardless of the language you speak. When you play Sudoku, you escape your reality. You get ...

Cet ouvrage propose des outils d'aide à la décision pour mieux localiser et dimensionner les entrepôts de la réponse humanitaire. ...

A guide to the practical art of plausible reasoning, this book has relevance in every field of intellectual activity. Professor Polya, a world-famous ...