Killer Sudoku Puzzle Book for Adults: 100 MIXED LEVEL POCKET SIZE PUZZLES (Volume 4). Makes a great gift for teens and adults who love puzzles. (Paperback) (ISBN-13: 9798679475113)

Conquered Classic Sudoku and looking for a new challenge?

Killer Sudoku puzzles are a great way to keep entertained, while also training your brain.

This collection of 100 POCKET SIZE MIXED LEVEL Killer Sudoku takes our popular large size puzzles and presents them in a new handy size. Convenient to carry with you; on the commute, travelling, at the dentist's office, anywhere

The puzzles will test your logic and puzzling skills. You must not only complete every row, column and 3x3 square with the digits 1 to 9, but also make sure the cages add up to the correct sum.

Makes a great gift for teens and adults who like puzzles that test their logic and sharpen their minds.

Killer Sudoku Puzzle Book Features: