Card Game War
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- Nov 01, 2013 Ideal War Card Game pits dogs vs. Cats in this classic card game! Each oversized card (4.5in. X 3in.) has an adorable image of a dog or cat and a value from 2 to Ace. All cards are shuffled together and 2 players go head to head, turning their cards over hoping to have the higher value.
Photo by Jack Hamilton on Unsplash.
This video tutorial will teach you how to play the card game War. For more information visit video will cover all. The card game War is an extremely easy card game for two people to pick up quickly and start playing immediately. Though mainly a game of luck, this game of cards can have a lot of fun moments that will keep you and friends laughing throughout the game.
During Thanksgiving Break I played the card game War with my girlfriend and remembered how wonderfully mindless it is. Because there's no strategy or decision-making, it was feasible to write a program to play the game. Once I could simulate one game, I could simulate several and collect some statistics.
Evidently the rules of War have some gaps, including what to do with the cards you win. Do you place them on the bottom of your deck, in order, or do you shuffle and reuse them once your deck is empty? Why not program both methods and compare? Here is a plot of both approaches after 100,000 trials of each. The x-axis is the number of turns required to complete the game, and the y-axis is the frequency of that outcome across 100,000 trials.
The data proved more interesting than I expected.
War Card Games Online
Card Game War Play
- Shuffling the winnings led to much faster games — a mean of 262, a mode of 84, and a max of 2,702 turns.
- When the winnings aren't shuffled, the numbers are less clear. Many games were seemingly infinite so I added a cap of 5,000 turns per game. 11,837 (11.8%) of the games hit this limit (and do not appear on the graph). But plenty of games ended after 4,000+ turns, so we could expect many of these long games to be finite as well. If we ignore the capped games, the mode is 104 turns.
- Both plots show a binary distribution of the results, as you can see in the higher and lower groupings of dots. It turns out that games are more likely to finish after an even number of turns. Each player starts with 26 cards, so if there are no wars and one player wins every hand, the game will last 26 turns. For every turn that player loses, they must win an additional hand to cancel the loss, so the game still requires an even number of turns. Only a war will break this trend because 4 cards change possession instead of 1. A game with an odd number of wars will take an odd number of turns to complete (ignoring wars with fewer than 3 cards, when one player's deck is low).
As for the program, here it is in JavaScript. The highlighted lines show the changes made between the Shuffle and No-Shuffle versions.
Card Game War Age
To close, enjoy the amazing uniqueness of a well-shuffled deck.