First you must learn how to "Riffle Shuffle". Shuffle the cards at the corners so that you alternate, laying down a card from the left pile, then right, then left - etc. The working of this trick is easy once you've practiced the riffle shuffle.... Read more of Magnetic Cards at Card Trick.caInformational Site Network Informational
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COUNTING THE RECTANGLES.





(The Guarded Chessboard)
Can you say correctly just how many squares and other rectangles the
chessboard contains? In other words, in how great a number of different
ways is it possible to indicate a square or other rectangle enclosed by
lines that separate the squares of the board?


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Next: THE ROOKERY.

Previous: SETTING THE BOARD.



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