Volume 6 in a new series of family activity puzzle books. Entertain yourself and power up your brain while solving a variety of easy, moderate, and difficult puzzles. This activity book includes: -SUDOKU-KILLER SUDOKU-SIKAKU-MINE SWEEPER-KENDOKU-KAKURO-FILLOMINO-DOMINO-LAMPLIGHTER -TENTS & TREES-CALCUDOKU -MAGIC SQUARES-MATH CROSSWORDS-NUMBER PYRAMIDS-MATH SQUARES-RULLO-SECRET NUMBER TRAILS Created by an educator and author this book will satisfy young and old. All puzzles are original and unique.Great for travel fun. Take it to the beach. Keep it in your bag. Set it by the commode. Leave it on the nightstand. There's something to satisfy everyone in the family.★★★★★ Yeah! The puzzles are large enough to easily work out.★★★★★ Great for serious puzzlers.★★★★★ Very enjoyable and satisfying challenges.