Le pedí a una IA que analizara las matemáticas detrás de la cuadrícula 4×4 y 2×2 utilizada en el Truco de seguimiento de tarjetas. Las matemáticas también funcionan para otras cuadrículas, aunque creo que sería poco práctico usar una cuadrícula mayor a 4×4. Entonces, ¿qué sucede cuando se trabaja con una cuadrícula de 3×3?
Well if you follow the dealing pattern described in the “Card Tracking Trick”, you end up with one extra card. Place that card aside for the moment. Have a pile chosen and let the spectator shuffle that pile. Tell them to look at the top card, then place the pile back on the table.
Now follow the process of picking up the piles. When all the piles have been stacked, place that pile on the single card that was places aside.
The chosen card is now eighteenth from the bottom of the deck. Obviously you can do anything at this point to conclude the trick. What I do is I perform a perfect in-faro which moves the card to the seventeenth from the top. I reveal the card by using “prestidigitation”. I explain what prestidigitation is, and then deal the cards out, spelling “Prestidigitation” one letter for each card dealt. The selected card falls on the last letter,