# What does 4D Chess use?

4D Chess (4dchess.org) shows public evidence of 1 tools, according to runsonwhat (last checked 2026-10-20).

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Three.js](https://www.runsonwhat.com/reverse/threejs) | Media & UI | Website code |  |

## FAQ

### What tools does 4D Chess use?

As of October 2026, runsonwhat has found 1 tools at 4D Chess (4dchess.org) in public records. Application: Three.js. Last checked October 20, 2026.

### Does 4D Chess use Three.js?

Yes. runsonwhat found Three.js at 4D Chess through Three.js code on 4dchess.org. Three.js is a Media & UI tool used by 15,706 companies runsonwhat tracks.

### How does runsonwhat know what 4D Chess uses?

runsonwhat reads public records only. Of the 1 tools at 4D Chess, 1 was found through code on 4dchess.org. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and 4dchess.org about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/4dchess.org (updated October 2026). Counts are companies with direct public evidence of the tool (DNS records, certificates, website code, a real-browser crawl, subprocessor lists), so they are lower bounds. Methodology: https://www.runsonwhat.com/methodology.