Heart Sudoku Vol. 30: Play 9x9 Grid Heart Color Sudoku Easy Volume 1-40 Coloring Book Pencil Crayons Valentines Become A Sudoku Expert Paper Logic ... All Ages Boys and Girls Kids to Adult Gifts

Let's Play Heart Sudoku! This logic based combinatorial number puzzle game is super fun, kills boredom, great for taking on the go when you travel by road, air plane or train! Help your brain get smarter with this paper based puzzle. Like a coloring book, use coloring pencils or crayons and color in those hearts, making sudoku even more fun with a touch of color. Collect all 40 volumes of the each level and solve them all! You'll be on your way to Sudoku greatness!