War is a card game typically involving two players. It uses a standard French playing card deck. Due to its simplicity, it is played most often by children. == Gameplay == The objective of the game is to win all cards. The deck is divided evenly among the players, giving each a down stack. In unison, each player reveals the top card of their deck – this is a "battle" – and the player with the higher card takes both of the cards played and moves them to their stack. Aces are high, and suits are ignored. If the two cards played are of equal value, then there is a "war". Both players place the next...

The problem of points, also called the problem of division of the stakes, is a classical problem in probability theory. One of the famous problems that motivated the beginnings of modern probability theory in the 17th century, it led Blaise Pascal to the first explicit reasoning about what today is known as an expectation value. The problem concerns a game of chance with two players who have equal chances of winning each round. The players contribute equally to a prize pot, and agree in advance that the first player to have won a certain number of rounds will collect the entire prize. Now suppose...