Check the listing for details. Pet Puzzle Chessboard Improve Dog Intelligence From Easy to Difficulty. Condition: Used. Listed at 24.94 USD. Enhance your furry friend's problem-solving skills with this Pet Puzzle Chessboard. Made from durable ABS material, this puzzle features an array of challenges ranging from easy to difficult, making it perfect for dogs of different sizes and intelligence levels. The puzzle also comes with a treat dispensing feature that rewards your pet with a delicious snack when they complete a level. Designed by KADTC, this puzzle is manufactured in China and is ideal for dog owners who want to keep their pets entertained and mentally stimulated. Whether you have a large or medium-sized dog, this puzzle is sure to provide hours of fun and improve their cognitive abilities. Get your hands on this amazing puzzle today and watch your pet's intelligence soar!