Book of Donmon Teith

When you buy this book you get an electronic version (PDF file) of the interior of this book. You can play the puzzles in this book on your mobile phone! Sudoku

When you buy this book you get an electronic version (PDF file) of the interior of this book. You can play the puzzles in this book on your mobile phone! Sudoku

Sudoku has become an addiction for millions--and that’s great, because mind games help keep our brains in good working order. But even though the rules are si

The real challenge of programming isn't learning a language's syntax—it's learning to creatively solve problems so you can build something great. In this one-

Packed with more than a hundred color illustrations and a wide variety of puzzles and brainteasers, Taking Sudoku Seriously uses this popular craze as the start