Trinity 21

21-point Poker Challenge is a simple and interesting card puzzle game that tests your eyesight and mental arithmetic.
You need to find 3 cards from the deck generated on the left within a limited time, so that the sum of their points is exactly equal to 21 points. If the deck is insufficient, you can refresh it manually. Challenge your reaction speed and mathematical calculation ability!
There are three difficulty levels. The higher the difficulty, the different number of cards generated, and the time limit is getting shorter and shorter.