EveryMemoryNumber Pyramid
Each block equals the sum of the two below it. Find the missing block in this free number puzzle you play in your browser.
⚡ Quick answer
Number Pyramid is a puzzle where each block is the sum of the two below it and you find the missing one. It is a fun, self-relative challenge you compare only to your own past runs. It is not a medical or cognitive test.
Key takeaways
- Free in your browser, no sign-up, find the missing block in the pyramid.
- Each block equals the sum of the two blocks directly below it.
- Beat your own best streak across three lives, scores saved on your device.
- A fun self-relative logic puzzle, not a medical or cognitive test.
Number Pyramid is built so each block equals the sum of the two blocks directly below it. One block shows a question mark. Work out its value from the others. Play it above first.
It is free, needs no sign-up, and your best streak is saved on your own device.
How to play
The bottom row of three numbers is always given, and one block above is hidden.
- Remember the rule: every block is the sum of the two below it.
- Use the bottom row to build the middle blocks.
- Work toward the missing block, then check the four options.
- A wrong tap costs one of your three lives.
No account is needed and your best streak stays on your device.
What it trains
The pyramid rewards step-by-step additive reasoning.
- Chained mental addition.
- Logical deduction from known to unknown.
- Working memory while you track several blocks.
Be honest: you mostly improve at this game, it is not an IQ measure.
Tips for a longer streak
Build from the bottom up whenever the bottom row is known.
- Add neighbouring bottom blocks to get the middle row.
- Add the two middle blocks for the top.
- If a middle block is hidden, the top minus the other middle gives it.
The honest way to read your score
Your best streak only matters next to your own earlier runs, not anyone else's.
If you like logic with numbers, try the number compare game or read about working memory to see what holds the blocks in mind.
⚠ When to talk to a professional
Number Pyramid is a casual brain game, not a medical or cognitive test, so see a qualified professional for any genuine concerns about your thinking or memory.
