Pearls Before Swine

Pearls Before Swine is a derivative of the ancient mathematical choice game, Nim.

The puzzle game, featuring a strange, cape-wearing man, begins with him offering a challenge involving a handful of pearls. The strange man and the player take turns removing pearls from one of three rows. On each turn, a player must remove at least one pearl, but may remove any number of pearls so as long as they all come from the same row. The goal of the game is to avoid taking the last pearl in the strange man's hand.