Level 2 Yellow Belt Sudoku

by Frank Longo

Published 1 January 2006
Now, everyone can find the perfect sudoku challenge and become a master at the game. Just like karate, these puzzle collections are ranked by different-coloured belts...and they're more precisely and accurately organized by level than ever before. Beginners can start with the extremely easy White Belt (Level 1), and...Read more

Level 3 Orange Belt Sudoku

by Frank Longo

Published 1 January 2006
Now everyone can find the perfect sudoku challenge and become a master at the game. Just like karate, these puzzle collections are ranked by different-coloured belts...and they're more precisely and accurately organized by level than ever before. Beginners can start with the extremely easy White Belt (Level 1), and...Read more

Level 5 Blue Belt Sudoku

by Frank Longo

Published 1 January 2006
Now, everyone can find the perfect sudoku challenge and become a master at the game. Just like karate, these puzzle collections are ranked by different-colored belts...and they're more precisely and accurately organized by level than ever before. Beginners can start with the extremely easy White Belt (Level 1), and...Read more

Level 8 Red Belt Sudoku

by Frank Longo

Published 1 January 2006
Now everyone can find the perfect sudoku challenge and become a master at the game. Just like karate, these puzzle collections are ranked by different-colored belts...and they're more precisely and accurately organized by level than ever before. Beginners can start with the extremely easy White Belt (Level 1), and...Read more

Level 4 Green Belt Sudoku

by Frank Longo

Published 1 January 2006
Now everyone can find the perfect sudoku challenge and become a master at the game. Just like karate, these puzzle collections are ranked by different-colored belts...and they're more precisely and accurately organized by level than ever before. Beginners can start with the extremely easy White Belt (Level 1), and...Read more

Level 1 White Belt Sudoku

by Frank Longo

Published 1 February 2006
Now, everyone can find the perfect sudoku challenge and become a master at the game. Just like karate, these puzzle collections are ranked by different-coloured belts...and they're more precisely and accurately organized by level than ever before. Beginners can start with the extremely easy White Belt (Level 1), and...Read more

Level 7 Brown Belt Sudoku

by Frank Longo

Published 1 January 2006
Now everyone can find the perfect sudoku challenge and become a master at the game. Just like karate, these puzzle collections are ranked by different-colored belts...and they're more precisely and accurately organized by level than ever before. Beginners can start with the extremely easy White Belt (Level 1), and...Read more

Level 6 Purple Belt Sudoku

by Frank Longo

Published 1 January 2006
Now everyone can find the perfect sudoku challenge and become a master at the game. Just like karate, these puzzle collections are ranked by different-colored belts...and they're more precisely and accurately organized by level than ever before. Beginners can start with the extremely easy White Belt (Level 1), and...Read more