Number Sequence Puzzle
Play a free number sequence puzzle online. Spot the pattern in each sequence and type the missing number, across three difficulty levels. No download, no sign-up.
How to Play
- Pick a difficulty: Easy, Medium, or Hard.
- Look at the numbers shown and work out the pattern connecting them.
- Type the missing number and press Enter, or use the on-screen keypad, then submit.
- Answer correctly to score points and build a streak. A wrong answer resets your streak.
- Complete 10 sequences to see your final score and accuracy.
Game Features
- A mix of pattern types: steady counting, growing gaps, doubling sequences, and more, scaled by difficulty.
- Three difficulty levels, from simple counting patterns to trickier growth sequences.
- Streak bonus scoring rewards consecutive correct answers.
- Personal best is saved on your device, per difficulty.
- On-screen number pad for mobile, plus full keyboard support (including negative numbers) on desktop.
- No login, no download. Play instantly.
Tips & Strategy
- Check the difference between each pair of numbers first. A constant difference is the simplest pattern.
- If the difference itself is changing, check whether each number is being multiplied by the same amount instead.
- For harder sequences, try checking whether each number is the sum of the two before it.
Frequently Asked Questions
What is a number sequence puzzle?
A number sequence puzzle shows a series of numbers that follow a hidden pattern, with one number missing. Your job is to work out the pattern and fill in the gap.
What kinds of patterns are used?
Counting patterns with a steady difference, sequences that grow by multiplying, and patterns where each number depends on the ones before it, depending on difficulty.
Can I play on mobile?
Yes. The on-screen number pad is designed for touch, and the game also supports typing on a physical keyboard.
Does it save my best score?
Yes. Your personal best is saved on your device, separately for each difficulty.
Is there a time limit?
No. You can take as long as you like on each sequence.
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