playing cards Gin Rummy

【overview】
It is an application that you can play the card game "Gin Rummy". Gin Rummy is a world-famous game that originated in the United States and is one of the three major card games in the world. It is fun that can be said to be the definitive version of the game played by two people.
Gin Rummy is a two-player game that competes to reduce the number of cards in your hand as quickly as possible. When the score drops below a certain point, you can stop the game and knock. The real thrill is to see if you have a lower score than your opponent and win at the right time.
The knocked player can put a card on the opponent to reduce the score, and if the score is less than the knocked player's score, the player wins. You will also get bonus points in this case.
The knocking side has the advantage of being able to choose the timing, but there is a risk of losing more points if they lose. After a certain amount of turns have passed, it is difficult to knock, so you will aim for Jin (with 0 points in your hand), which will win unconditionally.
Although it is not well known in Japan, it is a popular standard card game that is played by families and friends from adults to children around the world (especially in the United States). This is a game for two players only, and it has a depth that allows advanced players to engage in intense bargaining in a short amount of time.
50 points and 100 points preemptive game modes are available.
If it is 50 points, it is easy to get the element of luck, so it is suitable for beginners. 100 points is the original Gin Rummy, and stable ability is also required.
【function】
・You can play 50 points and 100 points first.
・There is an easy-to-understand explanation of the rules, so even people who don't know how to play can start.
・A mark is attached to the card you have drawn.
・A mark is attached to the cards that are melded.
・You can see records such as the number of times you won each game.
[Operation instructions]
*Draw first card
This is an operation only when you are not the parent. Use the button to select whether or not to take a card in the field.
*Draw a card
Press the button to draw one card from either the discard pile or the draw pile.
*Discard card
Tap a card to select it. Discard the card by further tapping the selected card.
*Declaring Knock
When knocking is possible, after discarding the card, decide whether to knock with the button.
【price】
You can play all for free.