At home, while commuting, during lunch hours…people around the world are eagerly working on Sudoku puzzles whenever and wherever they can!    Created in the United States, these intriguing conundrums were originally called Number Place puzzles. Their recent rise in popularity began in Japan, where the name translated as sudoku. Here we’ve indicated the skill level necessary to complete each sudoku book in this series in the same way Japanese karate levels are ranked: by different colored belts. This is the White Belt volume, a great introduction for anyone who wants to find the perfect beginner’s challenge.    It’s impossible to complete only one sudoku at a time, because solving them is habit-forming! ((Sudoku Belts)) PUZZLES/GAMES ((White)) ((headline)) Sudoku Puzzles for Everyone, From Novices to Masters! At home, while commuting, during lunch hours...people around the world are eagerly working on Sudoku puzzles whenever and wherever they can! Created in the United States, these intriguing conundrums were originally called Number Place puzzles. Their recent rise in popularity began in Japan, where the name translated as sudoku. Here we've indicated the skill level necessary to complete each sudoku book in this series in the same way Japanese karate levels are ranked: by different colored belts. This is the White Belt volume, a great introduction for anyone who wants to find the perfect beginner's challenge. It's impossible to complete only one sudoku at a time, because solving them is habit-forming! ((Green)) ((headline)) Sudoku Puzzles for Everyone, From Novices to Masters! At home, while commuting, during lunch hours...people around the world are eagerly working on sudoku puzzles whenever and wherever they can! Created in the United States, these intriguing conundrums were originally called Number Place puzzles. Their recent rise in popularity began in Japan, where the name translated as sudoku. Here we've indicated the skill level necessary to complete each sudoku book in this series in the same way Japanese karate levels are ranked: by different colored belts. This is the Green Belt volume, ideal for anyone who wants to move beyond the easiest puzzles. It's impossible to complete only one sudoku at a time, because solving them is habit-forming! ((Brown)) ((headline)) Sudoku Puzzles for Everyone, From Novices to Masters! At home, while commuting, during lunch hours...people around the world are eagerly working on Sudoku puzzles whenever and wherever they can! Created in the United States, these intriguing conundrums were originally called Number Place puzzles. Their recent rise in popularity began in Japan, where the name translated as sudoku. Here we've indicated the skill level necessary to complete each sudoku book in this series in the same way Japanese karate levels are ranked: by different colored belts. This is the Brown Belt volume, a terrific choice for anyone who is ready for intermediate puzzles that are more difficult than might be expected. It's impossible to complete only one sudoku at a time, because solving them is habit-forming! ((Black)) ((headline)) Sudoku Puzzles for Everyone, From Novices to Masters! At home, while commuting, during lunch hours...people around the world are eagerly working on Sudoku puzzles whenever and wherever they can! Created in the United States, these intriguing conundrums were originally called Number Place puzzles. Their recent rise in popularity began in Japan, where the name translated as sudoku. Here we've indicated the skill level necessary to complete each sudoku book in this series in the same way Japanese karate levels are ranked: by different colored belts. This is the Black Belt volume, filled with puzzles that will provide a sly, absorbing test for even the best, most proficient experts. It's impossible to complete only one sudoku at a time, because solving them is habit-forming! Michael Rios was born in Chicago, Illinois, and has spent most ofhis life solving and constructing puzzles for fun.  He is an IT SystemsEngineer with a penchant for Linux and open source software.  Mike hasworked in the telecommunications and financial industries and has been a government contractor at a national lab.  Mike enjoys tabletop/hobbyboardgaming, playing racquetball, recreational programming, and spending time with his family. Mike's first published work was atage 12.  It was a response to a Games Magazine puzzle based on BurmaShave signs; he mailed five letters on five consecutive days to themagazine, which then printed those letters in scrambled order as apuzzle.  Since then he has been published in Games Magazine and GamesWorld of Puzzles, and has authored or co-authored many variety puzzlebooks and sudoku books.  Michael currently lives in Oswego, Illinois,with his wife Theresa, his children Becca and Peter, and Kiki theQuasi-Wonder dog.