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:100 MIXED level Killer Sudoku puzzles2 Puzzles per page with plenty room for working Table of unique digit combinations for cages suppliedPerfectly sized - 5.25" x 8"Solutions provided