Every Trividoku™ Sudoku puzzle has sets of nine matching Trivia clues. Match them up to find the missing digits in the puzzle.

Don’t know the Trivia? Don’t worry- most of the puzzles can be solved without the Trivia; they’re just harder to solve that way.

The 101 puzzles in this book range from simple to fiendish. In the fourteen Triple Trivia challenges you are given three different sets of nine trivia matches. And in the Thunder Brain challenges, there may be as few as TWO digits filled in.

Is it time to declare your independence from ordinary 9 x 9 Sudoku?

In Stars & Stripes Sudoku, each 12 x 12 grid has the familiar 1 - 9’s, but also has three *’s in each row, box and column.

 

 

Are you adrift in a sea of normal 9 x 9 Sudoku?

Chart yourself a new course to Sudoku Islands where in addition to the normal 9 x 9 Sudoku, four Islands float on top of each puzzle. Not only does each row, column and box contain 1 – 9 but each of the islands also contains 1 – 9.