Blackstone's Card Trick Without Cards number is ten times the card's value, plus a fixed 15 (for the addition of 3 and the multiplication by 5) and an additional suit-dependent figure. Thus both suit and value are readily identifiable. To find their card, you take their number and subtract 1 to get the number on the card. The suit is based on the second number. 4 for Spades, 3 for Hearts, 2 for Clubs, and 1 for Diamonds. For example, if their number is 64, then their card would be the 5 of Spades. Blackstone's Card Trick Without Cards Blackstone's Card Trick Without Cards is
Trump (card games) Trump (card games) A trump is a playing card which is elevated above its usual rank in trick-taking games. Typically, an entire suit is nominated as a "trump suit"; these cards then outrank all cards of plain (non-trump) suits. In other contexts, the term trump card can refer to any sort of action, authority, or policy which automatically prevails over all others. Contract bridge can be played with any suit as trump, but also includes an option to play without a trump suit. In a version known as Rex Bridge, there are two versions of no-trump, the common one (NT)