Game rules

Preparation:3 or more people, a deck of 52 playing cards, no jokers, and a dealer. A=1, J=11, Q=12, K=13; A to 6 are small, 8 to K are big, and 7 is re-drawn for the big and small questions.

The first stage: four questions to guess cards

Each player answers four questions in sequence, and turns over a new card for each question: big/small, red/black, odd/even, and one of the four suits. Odd and even calculations are based on 1 to 13 above.
Cards guessed correctly go into the discard pile; cards guessed incorrectly remain face up in front of the player. The dealer also participates, and another person turns over the cards for him.
At the end of the four questions, everyone will bear the same unit according to the number of cards in front of them; the one with the most cards will advance to the second stage. The person with the highest tie clears the cards in front of them and uses the remaining cards to guess four more questions each until there is only one person left.

The second stage: triangle breakthrough

Place six cards face down in a triangle: three on the bottom row, two in the middle, and one on top. In the first stage, the loser starts from the right side of the lower layer and guesses whether it is big or small before each card is turned over.
If you guess correctly, go to the left; complete the three lower levels before entering the middle level, then two more in a row to enter the upper level, and finally guess one correctly to pass the level.
If you guess wrong, you will receive one unit. All positions on the layer will be replaced with new cover cards, and you will start over from the rightmost side of the layer. When there are not enough cards, shuffle them and discard them before using them again.