A quick card trick requiring only 6 cards and some very simple math. Learn it in minutes and impress for years!

  • Submitted by: Colm Mulcahy
  • Time Required: 10 minutes
  • You’ll Need: a card deck

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This trick can also be found in the book, Mathematical Card Magic: Fifty-Two New Effectsby Colm Mulcahy, with a foreword by Max Maven. (A.K. Peters/CRC Press, 380 pp., 128 illustrations, August, 2013). It’s also revisited on the Math Awareness Month Calendar.