ACADIFY · BRAIN CHALLENGE 03

Pattern Recognition
See What Others Miss.

Hidden rules. Alternating sequences. Symbolic patterns. Challenge your observation skills and discover the logic behind seemingly unrelated elements.

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OBSERVE · CONNECT · DECODE

Can you see the hidden pattern?

These questions get progressively harder. Look for relationships between positions, transformations, and multiple simultaneous rules. Don't rush — one small detail can change everything.

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🔍 10 Questions ⏱️ About 20 Minutes 🧠 Advanced Challenge

Your Details

1. Each row follows the same hidden rule. What number replaces the question mark?
2   3   13
4   5   41
6   7   ?

Identify the relationship between the first two numbers and the third.

2. Find the missing pair in this sequence.
AZ   BY   CX   DW   ?

Each pair contains two letters. What comes next?

3. Each sequence follows a repeating pair of operations. Find the missing number.
3   8   6   16   12   32   ?
4. The symbols transform according to a fixed rule. Which option should come next?
↑   →   ↓   ←   ↑   ?

Assume the arrow rotates by the same angle at every step.

5. Find the missing number in the sequence.
1   2   6   21   88   ?

Look at the changing multiplier and the number added at each step.

6. Each row follows the same rule. Find the missing value.
3   4   25
5   2   29
6   3   ?

Use both numbers in each row to generate the third.

7. Which number completes the sequence?
2   5   11   23   47   ?

Look at how each term is generated from the previous one.

8. A sequence uses alternating operations. What is the next number?
100   50   55   27.5   32.5   16.25   ?

Identify the two operations that alternate.

9. The letters in each group are converted into numbers using their alphabet positions (A = 1, B = 2, ..., Z = 26). Find the next group.
ACE   BDF   CEG   DFH   ?

All three letters move forward together.

10. Final challenge. Find the missing number.
2   6   15   31   56   ?

The differences between consecutive terms also follow a pattern.

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