MindTrick .

1.Think of any two-digit number (e.g., 54).
2.Subtract its digits from it (54 - 5 - 4 = 45).
3. Find the result in the grid and memorize its symbol.
4. Focus on the symbol and tap the button below.

🔮 Math Behind the Mind Reader

The MindTrick virtual telepathy game is a modern implementation of a classic mathematical puzzle. It uses modular arithmetic to create the illusion of reading your mind.

Q: How does the algorithm guess my symbol?

Any two-digit number can be represented as 10x + y, where x is the first digit and y is the second. When you subtract the sum of its digits, the equation becomes:
(10x + y) - (x + y) = 9xThis mathematical proof shows that the result of this subtraction will always be a multiple of 9 (e.g., 9, 18, 27, 36, 45, etc.).

The secret is simple: every single multiple of 9 in our grid is assigned the exact same randomized symbol. No matter what number you think of, your math will lead you to a multiple of 9, and the app will display that exact symbol.

Q: Is my privacy protected?

Absolutely. MindTrick does not use cookies, trackers, or databases. The game runs entirely on your local browser and complies with strict European data privacy standards (GDPR).