Your spectator uses their own phone to fill a 3×3 grid with numbers 1-9 in completely random positions. They calculate the mathematical total themselves using their own choices, their own device, their own numbers. (Note: The input method is handwriting. To give you an idea, this is the app the spectator will use to manually fill out the 3×3 grid.)
Yet you've already predicted their exact result.
No apps to download. No gimmicked props. Pure mathematical impossibility.
Why this destroys audiences:
Their phone, their choices – eliminates every possible explanation
Real mathematics – 362,880 possible arrangements make prediction statistically impossible
Instant reset – perform for multiple spectators immediately
Dual modes – present as prediction or mind-reading
Mind Over Math – where technology meets the impossible. Get yours today and watch logic crumble before your audience's eyes.