About schulte-table.org
schulte-table.org is an independent collection of browser tools and practical references for number-order and visual-search tasks. No account is required.
What the site is for
The site offers interactive 3×3 through 10×10 number grids, rule variations, a local progress tracker, a score calculator, print layouts, a prepared PDF, and guides that explain those specific tools.
- Use a grid immediately in the browser
- Compare your own like-for-like attempts
- Prepare a printable activity or record sheet
- Understand exactly what a timer, error count, or site-defined calculation means
How the tools work
For a standard task, the browser shuffles a complete number sequence and starts timing on the first correct selection. It stops after the final correct selection. Incorrect selections increase the mistake count without advancing the target.
Completed attempts supported by the shared tracker are written to localStorage in the current browser. The tools do not require a profile or upload those result records to a schulte-table.org account database. Clearing site data, using another browser, or changing devices separates the histories.
How content is reviewed
The schulte-table.org editorial team checks factual descriptions of a tool against the implementation. Site-defined formulas are labeled as site formulas, and comparisons are framed as personal, task-specific context rather than baselines for a general group.
We do not publish unsupported medical, diagnostic, eyesight, intelligence, or guaranteed learning claims. Guides are reviewed when their linked tools, data fields, or calculations change. Publication and modification dates on editorial articles identify the reviewed version; they do not imply clinical peer review.
Scope and limitations
A completion time belongs to the exact grid, rule, input method, display, zoom, and error handling used for that attempt. The site does not present its activities as validated assessments, treatment, or a substitute for professional advice.
Corrections
If you find a factual, translation, accessibility, or calculation error, email [email protected]. Include the page URL and a short description; a screenshot and browser/device are helpful for interface bugs but are not required. Please do not send sensitive personal information.