How to activate the discount: To get the 50% discount on one puzzle, you'll need to add atleast two of the eligible puzzles to your cart. Amazon will apply the discount to your order as you checkout.

Abstract: Archaeologists are in dire need of automated object reconstruction methods. Fragments reassembly is close to puzzle problems, which may be solved by computer vision algorithms. As they are ...

If you're looking for something fun to stimulate your mind and expand your cultural knowledge, you can't do better than a crossword puzzle. When they first gained popularity during the 1920s, they ...