Find a poker magic principle. Is to let the audience draw a card first, and then put it back to shuffle.

Simple poker magic phenomenon: The magician holds a deck of playing cards and puts a spade A and a Zhang Meihua A on the table. The magician began to deal cards neatly to stop the audience. When the audience stops, the magician puts the ace of spades on the top of the dealt pile of cards, and then neatly puts the dealt pile of cards on the bottom of his hand. Organize the cards. When the cards were dealt again, the audience stopped again. The magician put the ace of clubs on top of the dealt cards, and then closed them neatly. Put the closed card at the lower end of the card in your hand. The magician puts the cards on the table, one at a time, takes out spades A and the cards on spades A, and puts them on the edge of the table. Then take out the top picture of club A and club A, open two cards, and there are four aces on the table. Surprise the audience. Interpretation: Just put a heart-shaped A at the top of the card in advance, and then put a square A at the bottom of the card before magic. Just follow the above steps. Preparation for the four-K party: First, choose four "K's" from the whole deck of poker, then choose the other two cards and insert them after the second "K". (Note: The six cards must be neat, so that the audience can't find the other two cards among the four "K". ) Magic Steps: 1) Spread this stack of "K" into a fan to show the audience (hide two miscellaneous cards behind the third K), and then put these four cards (actually six cards) face down on the whole deck. 2) Tell the audience that these four "kings" are very good friends and they will never be separated. 3) Put the top card "K" at the bottom of the whole deck, and you can show this card to the audience. 4) Insert the next top card (not "K") in the middle. 5) Repeat step 4. 6) Now leave the fourth picture at the top. You can open it and show the audience that it is a "K". 7) While cutting the card from the middle and putting the lower part on it, you can explain to the audience: "The four heavenly kings are good friends, so even if they are separated, they will come back together soon." 8) Open the whole deck in a fan shape and show the audience that the four "K's" are magically gathered together. Punch a small hole in 4K's back with an embroidery needle, as long as it feels concave and convex. Put it behind your back, touch the cards one by one, and perform the phenomenon: the magician holds two cards in his left hand, and the audience looks back and forth once, indicating that there are only two cards. Then put away the two cards, hold them in front of your eyes, blow a sigh at them and say, "Poker flies, poker flies." Separate the cards again. At this time, the magician has seven cards in his hand. The magician put away the cards again, saying that the cards were scattered and there were only two left. Repetition is fun. Performance skills: The magician holds two playing cards, and five diagonal playing cards are posted on the back (Figure 2). When the magician confessed the cards in his hand, the cards with diagonal edges fell. Poker will turn when it is folded and blown. If you open it again, of course, it will become seven cards (actually, two cards and five cards with oblique edges). Because the audience is far away and can't see the diagonal edge, it is considered to be a flying card. When it is folded again, the magician only needs to turn the poker around and spread it out, and the extra poker will "fly away" again. Mathematical card guessing demonstration: the performer gives the audience a deck of cards, then turns his back on the audience and asks the audience to do it according to his password. 1. Put three piles of cards on the table, and the number of cards in each pile should be equal (assuming 15 cards), but don't tell the performers. 2. Take four cards from the second pile and put them in 1 pile. 3. Take 8 cards from the third pile and put them in 1 pile. 4. Count how many cards are left in the second pile (1 1 in this example), and take the same number of cards from 1 pile and put them in the third pile. 5. Take five cards from the second pile and put them in 1 pile. The performer turned around and said, "Take away the second and third stacks, so there are still 2 1 cards in the1stack, right?" The audience counted it, and it was 2 1. Secret: This is a magic designed by using the principle of identity transformation in mathematics. Be sure to remember: first, the number of cards at the beginning of each pile must be equal. The second time is the third time to take an equal number of cards from the 1 heap. In this example, the mathematical formula is 4*2+8+5=2 1. Comments and suggestions: This is a magic that is completely performed by mathematical laws, and the audience in this magic should be more "honest". If he doesn't do exactly what you say, your last move will fail. However, the most puzzling thing about this kind of magic is that the audience completely controls the cards. And it is very interactive. Of course, not all the audience are such "honest people". To deal with them, we need to use some "forced card" magic. The performance method of changing color between heaven and earth: the performer folds the cards into a fan shape, so that the audience can see clearly that there are red cards and black cards inside, and at the same time confess to the opposite side. The performer drew a few more pictures, so that everyone could see the front and back clearly. Then, he folded the stack of cards and waved it up and down a few times. After that, the stack of cards turned black. Magic secret: 1. Performing with red cards and black cards above 10; 2. Tear off half of some black cards vertically from the middle. Then tear off half of all red cards and stick the torn half cards together to become two-color cards; 3. Stack the special cards separately. When performing, when the cards are displayed in a fan shape, there are naturally red and black. After waving the cards, the cards are turned over and then turned black; Remember that all the cards drawn to the audience must be black cards that have not been manipulated. Pick five cards from the bag, face up, and put them on the table. The performer stepped back to let the audience recognize a card. Count silently from right to left. Remember the name of the card. The performer put away five cards and put them in his pocket. Then leave a card in the bag, take out four cards and put them on the table, with the cards facing up. Then he asked the audience what cards he recognized. After the audience answered, the performer said, I have put that card in my bag for a long time. So he took it out and put it on the table, with the card facing up, which is exactly what the audience knew. Methods: 1. Before the performance, put the other four cards in the loan. 2. When the performer takes back the five cards on the table, he should take them back from right to left in sequence (Figure 1). 3. After putting five cards in the pocket with four cards, take out the other four cards hidden in the pocket in advance and put them on the table, with the backs of the cards facing up (the audience mistakenly thinks that this is four of the five cards). 4. Then the performer counts the cards in the bag according to what the audience said, and draws this card out for the audience to see, which is the audience's approval. There are five cards on the table and four cards in the bag, which can be performed many times in a row without revealing any clues. Looking for a poker performance: (1) The performer holds a deck of playing cards and explains the back of the card, indicating that there is no secret. (2) Then shuffle the cards several times, invite an audience to take the stage, and he will shuffle the cards several times. The performer puts out his hands, palms up, and asks the audience to divide the cards into two piles, with their backs facing up, and put them on the performer's left palm and right palm respectively. (3) The performer said to the audience on the stage: "Choose one card from the two piles, take this pile of cards, and record the top card, what card is it, what card color, and show it to the audience, but don't let the performer know. Then put the cards you have seen back on the top. " (4) The performer stacks a pile of cards on the pile of cards selected by the audience and says, "Where is the card you have seen in the whole card?" The audience said, "I don't know." The performer said, "If you do it my way, you will know where it is." 5] Then let the audience face the stage and move the cards to the back. The first step is to move the top card below the card. The second step is to turn the top card over and insert it into the middle of the whole card at will. After these two steps, take the whole card to the front. [6] The performer said, "You put the card back, and then find the card you just turned over. The card below it is the card you clearly remember. " The same is true of the audience, who read the cards clearly and showed them to the audience. Once, why did a card that was turned over by the audience, when inserted in the back, just inserted on the card that was clearly remembered? It's really mysterious Secret: (1) There is no secret in playing cards, so you can borrow it temporarily. The secret is that when the audience on the stage chooses one card from the pile of cards in the hands of the performers, take them to see the top card and show it to the audience under the stage. (2) At this point, the performer takes the opportunity to quickly turn over another stack of cards in his hand, the bottom one, so that it faces upwards, and then turn over the top second card, so that it faces upwards. The turning point of these two cards is the key to this magic, and when it is finished, it is finished. (3) The audience on the stage moves the cards according to your two-step method. The first step is to move the top card to the bottom, which is to prepare for the second step. The second step is to turn the top card, which is a confusing move. In the audience's imagination, it changed from the back of the card to the front of the card, but they didn't know that the card had been changed into the front of the card by the performer. Now it's turned over by the audience, but it's turned over to the back of the card, which is in the same direction as other cards. (4) Finally, the audience put the cards back and saw an upside-down card, thinking that it was him who turned the cards behind, and this card was stacked on the front of the card he remembered. 5] So when the audience saw a card he remembered behind the flop, they were all surprised. Please accept it as a satisfactory answer.