Fathers Day Gifts: Sudoku Puzzle Book Including Easy, Medium, Hard, Expert & Extreme These are the perfect gifts for fathers day. Also, a relative, friend, or colleague will enjoy these thoughtful birthday gifts for dad! With multiple difficulty levels, there's something for everyone on Father's Day. Sudoku masters can wrestle with the Expert puzzles, while the newcomer can learn from the simply-written instructions and then begin tackling the Easy ones in these wonderful gift ideas for dad birthday. This is a much better fathers day idea than a happy fathers day card! The fortunate recipient of your dad birthday gifts will have access to: *Instructions *Easy Puzzles *Medium Puzzles *Hard Puzzles *Expert Puzzles *Answer Key There is an answer key for each and every puzzle in this book so that they can check their completed puzzles or give themselves a hint when stumped. Never feel confused on fathers day date with this comprehensive and accurate answer key. Anyone who loves Sudoku or a new challenge will love this book! These make great father's day gift for grandpa!