Number Guessing Game

In this simple game, your computer does all the work. You only have to press one of the buttons, "Yes" or "No". This is how you play. At the beginning (or after pressing "Reset"), you think of a positive integer less than 100. At any time, the computer will display a set of numbers. In response, press either "Yes" or "No" depending on whether your number is on the screen or not. After a while the computer will guess your number. See for yourself.

This applet requires Sun's Java VM 2 which your browser may perceive as a popup. Which it is not. If you want to see the applet work, visit Sun's website at, download and install Java VM and enjoy the applet.

What if applet does not run?


Related material

  • An Arithmetic Magic Trick
  • Bachet's Magic Trick
  • Gergonne's Magic Trick
  • Hummer's Mind Reader
  • Magic in Square
  • Math Telepathy
  • Barcode Magic
  • Arithmetic magic matrix
  • Calendar Magic: an Interactive Gizmo
  • Two Numbers Guessing Game
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