Blackjack is a popular gambling game played in casinos. Also known as 21, the game pits a player against a dealer in a card game.
Players are given two cards and must keep track of the sum of the values of the cards
- Open a command line and clone this repository.
git clone git@github.com:RichardGregoryHamilton/Blackjack.git - Install the ruby gem,
deck-of-cards.gem install deck-of-cards - Type in
ruby blackjack.rb
2 - 2
3 - 3
4 - 4
5 - 5
6 - 6
7 - 7
8 - 8
9 - 9
10 - 10
Jack - 10
Queen - 10
King - 10
Ace - 1 or 11
For example say you are dealt two cards, an 8 of Hearts and a 4 of Clubs
The sum of these 2 cards is (8 + 4) or 12.
Your objective is to get as close to 21 as possible without exceeding it. You are given two choices.
Hit - You can draw another card
Stay - You don't draw another card and retain this value.
Let's say you draw another card
7 of Spades
The sum of your 3 cards is now (8 + 4 + 7) or 19.
Since the total is still under 21, you again have the option to either hit or stay. Choosing hit is pretty risky here, since if you draw anything higher than a 2 you will forfeit your bet.
If both the player and the dealer have the same total, it results in a push, meaning you will get back the money you bet.
Typically, when the value of the sum of your cards is less than 16, you want to hit.
At 15, it is more likely to draw a card that will bring the sum to 21 or less, than one that will bring the sum over 21.