Pizzas in boxes represent the most effective placement of a circle within a square since NASA attempted to encase the moon inside a giant ice cube. Enjoy edible geometric feats with today’s Groupon: for $10, you get $20 worth of pizza at Domino's Pizza, valid for online-carryout ordering. Choose from the following locations: Chicopee, Ludlow, or on Liberty Street or Boston Road in Springfield.

Domino’s has painted dough canvases with flavorful sauces, an assortment of cheeses, and savory toppings since 1960. Domino’s dough is tossed daily and stretched by human hands, not by model airplanes flying in opposite directions. Treat friends to a feast by checking the online menu and crafting a custom masterpizza with the pie purveyor's wide range of ingredients. Diners too famished to choose their own toppings can select from Domino’s American Legends, featuring signature flavors from across the land. Pizzas such as the Pacific Veggie, Honolulu Hawaiian, or Wisconsin 6 Cheese impart all the delicious diversity of a road trip. Once a disc is ordered, customers may track its spinning flight using Domino's Pizza Tracker. The eatery also purveys noncircular fare such as oven-baked subs, boneless chicken, and chicken wings.

Although individual locations sometimes feature a discounted price online, this Groupon still offers the best deal available.