WOLFRAM|DEMONSTRATIONS PROJECT

Number Guessing with Binary Numbers

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step number
one
two
three
four
guess!
Is the number in the list?
one
two
three
four
explain the secret to me!
play again
8
9
10
11
12
13
14
15
Think of a integer between 1 and 15.If your number is in the list, click the checkbox for the step.
Next step!
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This is an example of the kind of problem, "Think of an integer and I will guess it." You need to know about binary numbers to understand the trick.