79 books • 14 series
Box Puzzle Game (Puzzle Books for Adults, #5)
Best Challenging Games (Puzzle Books for Adults, #2)
Brain Strategy Games (Puzzle Logic Games, #1)
Snake Puzzle Game (Math Puzzle Book, #4)
Simple Brain Puzzles (Math Puzzle Book, #3)
Very Hard Maths Puzzles With Answers (Math Puzzle Book, #5)
Mental Brain Puzzles (Adult Logic Puzzle Book, #4)
Mathematic Puzzles (Kakuro Books, #1)
Office Brain Teasers (Math Puzzle Book, #1)
Math Games And Puzzles With Answers (Adult Logic Puzzle Book, #1)
Great Brain Teasers With Answers (Logic Puzzle Game, #5)
Number Puzzles For Adults With Answers (Adult Logic Puzzle Book, #5)
Hardest Brain Teaser Puzzles (Logic Puzzle Game, #6)
Maths Hard Puzzles With Answers (Adult Logic Puzzle Book, #2)
Math Brain Teasers For Kids With Answers (Kids Puzzle, #1)
Quick Puzzle (Math Puzzle Book, #2)
Maths Numerical Puzzles With Answers (Adult Logic Puzzle Book, #3)
Complicated Maths Puzzles (Logic Puzzle Game, #3)
Brain Teasers With Answers For High School Students (Logic Puzzle Game, #1)
Game Puzzle Express (Logic Puzzle Game, #4)
Brain Teasers For High School (Logic Puzzle Game, #1)
Amazing Puzzles (Logic Puzzle Book, #2)
Best Mind Puzzle Game (Logic Puzzle Book, #5)
100 Puzzle Games (Logic Puzzle Book, #1)