Larvis - variation of a poker game

Cards:

• Each player gets a hand of 5 cards
• Available symbols are 23456789TJQKA, in order of value (A being the more valuable)

Combinations in order of value:

• Four of a kind, like 77377
• Full house, means 3 of a kind, and 2 of a kind, in the same hand, like KK2K2
• Triple, like 32666
• Two pairs, like 77332
• A pair, like 43K9K
• High card, when there's none of the above, like 297QJ

When two hands have the same combination value, the combination with the higher cards wins.

For example:

• when there are two pairs, the higher pair is compared first, so 99662 wins against 88776.

• when comparing full houses, triples go first, then pairs, so 88822 defeats QQ777.

• if the combinations are identical, then the other cards are compared, highest to lowest, so 7T2T6 wins against TT753, because TT = TT, 7 = 7, but 6 > 5.

Some examples of hands and what the result should be.

Hand 1	Hand 2	Winner
AAAQQ	QQAAA	Tie
53QQ2	Q53Q2	Tie
53888	88385	Tie
QQAAA	AAAQQ	Tie
Q53Q2	53QQ2	Tie
88385	53888	Tie
AAAQQ	QQQAA	Hand 1
Q53Q4	53QQ2	Hand 1
53888	88375	Hand 1
33337	QQAAA	Hand 1
22333	AAA58	Hand 1
33389	AAKK4	Hand 1
44223	AA892	Hand 1
22456	AKQJT	Hand 1
99977	77799	Hand 1
99922	88866	Hand 1
9922A	9922K	Hand 1
99975	99965	Hand 1
99975	99974	Hand 1
99752	99652	Hand 1
99752	99742	Hand 1
99753	99752	Hand 1
88822	QQ777	Hand 1
99662	88776	Hand 1
QQQAA	AAAQQ	Hand 2
53QQ2	Q53Q4	Hand 2
88375	53888	Hand 2
QQAAA	33337	Hand 2
AAA58	22333	Hand 2
AAKK4	33389	Hand 2
AA892	44223	Hand 2
AKQJT	22456	Hand 2
77799	99977	Hand 2
88866	99922	Hand 2
9922K	9922A	Hand 2
99965	99975	Hand 2
99974	99975	Hand 2
99652	99752	Hand 2
99742	99752	Hand 2
99752	99753	Hand 2

Run

You can run it by using your local GO installation or by using the attached Dockerfile.

Get repo:

$ git clone https://github.com/mroobert/larvis.git

Using GO

Run a game:

$ cd cmd

$ go run main.go -hand1 AAAQQ -hand2 QQAAA

Run multiple games defined in the ./cmd/games.csv file:

$ cd cmd

$ go run main.go -csv

Using Docker

Build a docker image:

$ docker build -t poker-larvis .

Run a game:

$ docker run poker-larvis -hand1 AAAQQ -hand2 QQAAA

Run multiple games defined in the cmd/games.csv file:

$ docker run poker-larvis -csv