# javascript dobble

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Dobble is a monomatch game where you need to find the matching symbol in the two cards that are shown. Every card contains a symbol that will match with a symbol on any other card. Check out the official game here!

This is an example of how to make your own dobble deck! Read more in this article.

` ````
//order of plane, must be a prime number
let n = 7
//order of plane + 1
let numOfSymbols = n + 1
//the deck of cards
let cards = []
function createDeck(){
let i, j, k;
//the current card we are building
let card = [];
//to start, we build the first card
for (i = 1; i<= n+1; i++) {
card.push(i)
}
cards.push(card)
//then we build the next n number of cards
for (j=1; j<=n; j++) {
card = []
card.push(1)
for (k=1; k<=n; k++) {
card.push(n * j + (k+1))
}
cards.push(card)
}
//finally we build the next n² number of cards
for (i= 1; i<=n; i++) {
for (j=1; j<=n; j++) {
card = []
card.push(i+1)
for (k=1; k<= n; k++) {
card.push(n+2+n*(k-1)+(((i-1)*(k-1)+j-1)%n))
}
cards.push(card)
}
}
```

If you want to learn more about how the game works and the maths behind it check out this video from Stand-up Maths.

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