Big deuce (also known as Big two, top dog, sho tai ti, chor dai di, capsa, ciniza, giappuniza and various other names), is a card game of Chinese origin. https://en.wikipedia.org/wiki/Big_two
There are a tutor and three sparring partners stay with you in the PVBigDeuce APP.
Beginners can follow the tutors hint to learn how to play as an expert step by step.
Intermediate players may switch hint off firstly, think your move, then switch hint on to compare.
Try to practice and verify the techniques you played.