Corsi Block-Tapping Test
Blocks light up one at a time across a scattered board. Watch the order, then tap them back. This free Corsi block-tapping test starts at two blocks and adds one each round you get right, so you find your spatial memory span. Backward mode has you tap them in reverse. Nothing is uploaded and there is no sign-up.
The Corsi block-tapping test measures your visuospatial memory span, the spatial cousin of the digit span. Nine blocks sit in a fixed, irregular scatter. Each round a sequence lights up, and you repeat it by tapping the blocks in the same order, or in reverse in backward mode. It is a classic neuropsychology task for spatial working memory, and here it runs free in your browser so you can find how many positions you can hold.
- No sign-up, ever
- 100% free
- Nothing uploaded
- Works offline after first load
- Scores stay on your device
Memorise the sequence, then tap it back.
How to use it
- 1
Watch the blocks light up
A sequence flashes across the board one block at a time. Track the positions and the order.
- 2
Tap them back
Repeat the sequence by tapping the blocks. In backward mode, tap them in reverse order.
- 3
Grow your span
Each correct round adds a block. Your first wrong tap ends the run and shows the longest span you reached.
When it comes in handy
Test spatial memory
Corsi span shows how many positions you can hold, separate from remembering words or numbers.
Compare with digit span
Run this next to the digit span test to see whether your spatial or verbal memory runs longer.
A steadier challenge
The irregular layout stops you leaning on a neat grid pattern, so it tests position memory more honestly.
Instant & 100% private — nothing is uploaded
Every game runs right here in your browser, and your best scores are kept on your own device. Nothing is sent to a server, so there is no sign-up and no account. Load the page once and it keeps working even if you go offline.
Frequently asked questions
- What is a normal Corsi span?
- Most adults reach a Corsi span of about five, meaning they can repeat a five-block sequence reliably. Spans of six or seven are strong. Backward span tends to be slightly shorter, as with digit span.
- How is this different from a sequence memory game?
- A grid-based sequence game lays tiles out in a neat pattern. The Corsi test uses nine blocks in an irregular scatter, which is the standard clinical layout, and it adds a backward mode. That makes it a truer test of spatial position memory.
- What does the Corsi test measure?
- It measures visuospatial short-term and working memory: how many spatial positions you can hold in order, and in backward mode, reorder. It is widely used in memory research and neuropsychology.
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