Subitizing Test & Flash Counting Game
See a dot field for a fraction of a second, wait for it to disappear, then report the quantity. The 12-round browser test separates small-set and larger-set accuracy instead of hiding everything inside one score.
Start Standard · 150 ms
Press Start only when you are ready. Each dot cloud is shown briefly, replaced by a visual mask, and the number field unlocks after the dots are gone. The same seed reproduces the same count order and dot positions.
What subitizing means here
Subitizing is the rapid recognition of a small quantity without deliberately counting each item one by one. This browser challenge uses that idea for the small-set portion of the test, while also including larger dot fields where exact recognition is harder and different strategies may be used. The page therefore reports the two ranges separately rather than pretending all twelve trials measure one identical process.
The small-set bucket contains answers from one through four dots. Larger-set trials contain five or more. Standard mode deliberately includes both ranges. Easy keeps the quantities mostly small at one through five, while Hard shifts the challenge upward to four through twelve. Those labels describe this game’s generated ranges only; they are not age, ability, diagnosis, or population categories.
Brief exposure, then a real hide
A flash test is not useful if the dots remain visible while you type. Each round begins with a short ready interval, shows the dot field for the selected exposure time, then replaces it with a neutral dotted mask before the answer control becomes available. That keeps Flash Count mechanically distinct from the regular Visual Count game, where the target symbols stay on screen and you can scan at your own pace.
You can choose 80, 150, 300, or 600 milliseconds. Faster settings make the visual exposure shorter; slower settings give more viewing time. Personal bests are stored separately for each exposure and range, so a 300 ms Easy result is never compared directly with an 80 ms Hard result.
How the 12-round result is calculated
The main game score is simply exact answers out of twelve converted to the platform’s 1,000-point scale. The detailed result also reports mean absolute error, best exact streak, small-set exact answers, and larger-set exact answers. A miss by one therefore remains visibly different from a much larger estimation error even though neither counts as exact.
Local history keeps cumulative Flash Count runs and accuracy for the two quantity ranges, plus the best result for the exact exposure-and-range setup. Data stays in this browser; there is no account, database, leaderboard, or server-side profile behind the test.
Deterministic without repeating one fixed board
Practice uses the platform’s seeded random generator. The test seed determines the twelve-count plan and the dot positions inside each round. Reopening the exact same seeded Practice state reproduces the same sequence, while choosing New test seed produces another deterministic sequence. That makes QA and sharing reproducible without turning the activity into a single memorized worksheet.
What this result does not claim
This is a visual quantity game, not a medical assessment or intelligence test. It does not diagnose vision, attention, dyscalculia, learning differences, or any neurological condition. It also does not estimate IQ, cognitive age, a global percentile, or a scientifically normed “brain score.” The only claims are the directly observed game metrics shown in your session.
Flash Count versus regular Visual Count
Use Flash Count when the disappearing visual is the point of the challenge. Use regular Visual Count when you want selective scanning among filled and outline distractors, Precision mode when you want ten untimed exact-count trials, and Sprint when you want continuous counting under a 30, 60, or 120 second clock. These modes share a visual-attention theme but create meaningfully different user tasks.
Keep going
Move to the regular counting game for visible target-symbol scanning, try the speed test for continuous timed counting, or switch to Visual Memory when you want to recall locations rather than quantities.