Nice trick

I'm impressed.

mind game

~:confused:~D

Clever.

Spoiler Alert, click show to read: 

Only certain numbers are possible according to the criteria given, for instance 27 or 63. The site switches the symbols around each time, giving all the possible numbers the same symbol, so it'll always be correct.

I think i understand how it works, but i wont spoil the illusion for anybody...

EDIT: Geoffrey came up with the clever idea of spoiler tags. Clever Geoffrey. Why didn't i think of spoilering it and saying how it works?

Quote:

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Originally Posted by Geoffrey S

Clever.

Spoiler Alert, click show to read: 

Only certain numbers are possible according to the criteria given, for instance 27 or 63. The site switches the symbols around each time, giving all the possible numbers the same symbol, so it'll always be correct.

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I have seen this before, it is cleaver. Tricky ,but cleaver. ~:)