A lightweight, training tool for practising the Rotating R spatial visualisation task used in the Thomas GIA (General Intelligence Assessment).
➡️ https://glyndavidson.github.io/Thomas-GIA-Rotating-R-Trainer/
If you found this trainer useful, please consider buying me a coffee to support my work.
This web app generates randomised pairs of rotated / mirrored letter R glyphs, and your goal is to identify how many of the two row pairs could match if rotated (mirroring does not count).
The tool mimics the behaviour of the official Thomas test while remaining distraction-free and fast to use.
- Click 0 / 1 / 2 — submit your answer
- Spacebar — instantly generate a new puzzle
- Dark/Light mode toggle — top-right corner
Glyn Davidson
Developer, climber, and chronic tinkerer of occasionally useful tools.
MIT License — feel free to modify, fork, or build upon the project.